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1
Wang, Shuzhuan, Lei Xu, and Mingde Hao. "Impacts of Long-Term Micronutrient Fertilizer Application on Soil Properties and Micronutrient Availability." International Journal of Environmental Research and Public Health 19, no. 23 (December 6, 2022): 16358. http://dx.doi.org/10.3390/ijerph192316358.
Повний текст джерелаАнотація:
Deficiencies of micronutrients in calcareous soils have been reported in different areas of China’s Loess Plateau. The objective of this research was to study the influence of the continuous application of micronutrient fertilizers on soil properties and micronutrient availability in this region. The micronutrient fertilizer field plot experiment began in 1984. It included Zn, Mn and Cu fertilizer treatments and the control treatment. The crop system was continuously cropped winter wheat. The soil properties and available Zn, Mn, Cu and Fe were measured. Their relationships were analyzed through correlation and path analysis. After 31 years, the soil pH, CaCO3 and available P levels decreased; in contrast, the organic matter, fulvic acid, reducing substances and soil moisture levels in the surface soil increased in the micronutrient fertilized treatments compared to the control treatment. Cu and Zn fertilizers promoted the available Cu and Zn levels in the surface and deep soil, but available Mn was not significantly affected by Mn fertilizer. It can be seen from the interaction between the micronutrient availability and micronutrient fertilizers that Zn, Cu and Mn fertilizers can increase the available Fe level; Mn fertilizer can increase the available Cu level, and Cu and Mn fertilizers can increase the available Zn level. This means that Fe, Cu and Zn availability were easy to implement, whereas the soil-available Mn was difficult to improve in calcareous soils on the Loess Plateau. Fulvic acid and organic matter showed a significant and direct effect on the available Zn; the available Mn and Fe were mainly affected by the soil CaCO3 and moisture; the available Cu was mainly affected by the soil organic matter, available P and reducing substances. These results indicate the importance of organic matter in calcareous soils; it can not only directly affect the availability of micronutrients but also indirectly affect their availability through the indirect interaction with fulvic acid, reducing substances, available P and CaCO3. The above conclusions suggest that the long-term micronutrient fertilizers changed some important soil properties and increased the micronutrient availability in the loess-derived soil.
2
Modaihsh, A. S., A. E. Abdallah, and A. S. Mashhady. "Micronutrients as Impurities of Inorganic Fertilizers Marketed in Saudi Arabia." Journal of Agricultural and Marine Sciences [JAMS] 5, no. 2 (June 1, 2000): 91. http://dx.doi.org/10.24200/jams.vol5iss2pp91-95.
Повний текст джерелаАнотація:
Inorganic fertilizers with major nutrients are likely to be contaminated with some micronutrients. Fertilizers, utilized in Saudi Arabia, were analyzed for their total and water-soluble content of Fe, Zn, Mn and Cu. They represented three categories namely: phosphatic, solid multiple nutrient fertilizers (SMNF) and water-soluble multiple nutrient fertilizers (WSMF). Total iron content in examined fertilizers was higher in phosphatic fertilizers and lower in WSMF. Nevertheless, only a very small portion of the total iron content is likely to be available to plants. It was estimated, on the basis of total content, that almost 2 g of iron would be applied to soil for each added kg of phosphatic fertilizer. The highest total content of Zn was recorded for phosphatic fertilizers. The data suggested that less than half kg of Zn would be accumulated in soil if 500 kg of phosphatic fertilizers were applied in one year. This value however, fell dramatically, to one fourth of the value, when only the available forms of Zn were considered. Fertilizer content of manganese and copper were lower than both Fe and Zn. Micronutrient impurities present in inorganic fertilizers might not have an immediate influence on plant nutrition due to their lower solubility.
3
Fu, Xing-Zheng, Fei Xing, Li Cao, Chang-Pin Chun, Li-Li Ling, Cai-Lun Jiang, and Liang-Zhi Peng. "Effects of Foliar Application of Various Zinc Fertilizers with Organosilicone on Correcting Citrus Zinc Deficiency." HortScience 51, no. 4 (April 2016): 422–26. http://dx.doi.org/10.21273/hortsci.51.4.422.
Повний текст джерелаАнотація:
To compare the effects of various zinc (Zn) foliar fertilizers on correcting citrus Zn deficiency and to explore an effective correcting method, three common Zn fertilizers, Zn sulfate heptahydrate (ZnSO4.7H2O), Zn chloride (ZnCl2), and Zn nitrate hexahydrate [Zn(NO3)2.6H2O], were selected to spray the Zn-deficient citrus leaves, tested at different concentrations, with or without organosilicone surfactant. Zn content, chlorophyll levels, and photosynthesis characteristics of leaves were analyzed. Leaf Zn content was significantly increased with increase of the sprayed Zn concentration of the three Zn fertilizers. However, when the sprayed Zn concentration of ZnSO4.7H2O exceeded 200 mg·L−1, and Zn concentration of ZnCl2 or Zn(NO3)2.6H2O exceeded 100 mg·L−1, obvious necrotic spots formed on leaves. This necrosis disappeared when 0.025% organosilicone was added to the three Zn fertilizer solutions, even at a Zn concentration of 250 mg·L−1. Meanwhile, the Zn contents of leaves increased one to four times for these treatments. Furthermore, foliar application of the three Zn fertilizers significantly improved chlorophyll levels and photosynthetic capacity of Zn-deficient leaves. The data of chlorophyll and photosynthesis characteristics indicate that the correcting effect of ZnCl2 and Zn(NO3)2.6H2O is better than that of ZnSO4.7H2O, and could be further improved via supplement of organosilicone. In conclusion, ZnCl2 or Zn(NO3)2.6H2O containing 250 mg·L−1 of Zn and supplemented with 0.025% organosilicone is a safe and effective formulation of Zn foliar fertilizer for correcting citrus Zn deficiency.
4
Sajwan, K. S., and W. L. Lindsay. "Response of flooded rice to various sources of zinc." Journal of Agricultural Science 111, no. 1 (August 1988): 197–98. http://dx.doi.org/10.1017/s0021859600083039.
Повний текст джерелаАнотація:
Zinc deficiency has been one of the major micronutrient disorders of flooded rice. Several researchers have reported that Zn deficiency could be corrected by the application of various Zn fertilizers to soil (Mikkelsen & Brandon, 1975), to seedling root (Yoshida et al. 1970; Katyal & Ponnamperuma, 1975) or to plants as foliar spray. Also there has been much speculation about the most suitable form of Zn fertilizer for correcting Zn deficiency of flooded rice. A glasshouse study was conducted to compare the effectiveness of various Zn fertilizers for rice grown under flooded conditions.
5
Islam, GMM, M. Hossain, SMA Iqbal, and MRA Mollah. "Assessment of Quality Status of Zinc Sulfate (hepta hydrate) Fertilizers Available in the Markets of Jessore Sadar Upazila." Journal of Environmental Science and Natural Resources 8, no. 1 (August 24, 2015): 69–71. http://dx.doi.org/10.3329/jesnr.v8i1.24674.
Повний текст джерелаАнотація:
An experiment was conducted in the Department of Soil Science, Bangladesh Agricultural University, Mymensingh during January to December, 2012 to see the quality status of Zinc Sulfate (hepta hydrate) fertilizers available in the markets of Jessore sadar upazila. For this purposes Zinc Sulfate (hepta hydrate) fertilizer samples were randomly collected from all union of the upazila. Fifteen unions and a pourashava in this upazila were included the experiment. Three composite samples were collected from each of the unions. Therefore, 48 composite samples were ready for 16 unions including pourashava. In this study 79% Zinc Sulfate (heptahydrate) fertilizer was adulterated and 21% was qualified according to government specification. 40% of them were ten to fifty percent of required Zn content and 2% of them were same level of S content. Only 21% of total fertilizers contained hundred percent of required Zn. Whereas, 96% fertilizers contained the same level of required S and only four percent of the fertilizers was found as sulfur deficient. The highest nutrient value of S and Zn were 17.75% and 23.03% respectively. On the other hand, the lowest value of them was 5.2% and 1.30%. Further 27% of them contained above eighty percent of required Zn. No unique relation between sulfur and zinc content of those fertilizers was found.J. Environ. Sci. & Natural Resources, 8(1): 69-71 2015
6
Tóth, Brigitta, Makoena Joyce Moloi, Seyed Mohammad Nasir Mousavi, Árpád Illés, Csaba Bojtor, Lóránt Szőke, and János Nagy. "The Evaluation of the Effects of Zn, and Amino Acid-Containing Foliar Fertilizers on the Physiological and Biochemical Responses of a Hungarian Fodder Corn Hybrid." Agronomy 12, no. 7 (June 25, 2022): 1523. http://dx.doi.org/10.3390/agronomy12071523.
Повний текст джерелаАнотація:
The benefit of applying foliar fertilizers is that crops can uptake them faster than soil fertilizers. The aim of this study was to test and valuate the effects of one zinc (Zn) and two amino acids-containing (AS) foliar fertilizers on a fodder corn hybrid’s physiological and biochemical processes. The experiment was conducted in field conditions. The following parameters of a fodder maize hybrid were measured one, two, three, four, five, and six weeks after the treatments (WAT): physiological (relative chlorophyll content and the effectiveness of PSII); biochemical (activities of superoxide dismutase (SOD); ascorbate peroxidase (APX) and guaiacol peroxidase (POD); the concentration of malondialdehyde (MDA); and proline. The yield increased by 10%, 6%, and 10% at Zn, Zn+AS1, and Zn+AS2 treatments. The yield parameters, such as grain/cob and ear weight, were also significantly higher under the applied three treatments relative to the control. The relative chlorophyll content was significantly higher one, two, and four weeks after Zn-treatment, and some changes were also observed when Zn and amino acid-containing fertilizer were applied in combination. The latter sampling did not show any notable changes. In addition, the activity of SOD increased when Zn-containing fertilizer was applied, although the effect of AS-containing fertilizer did not show. There was a correlation between the SOD activity and some of the yield parameters. The increasing SOD activity indicated a higher yield (t/ha) and a higher cob weight.
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Recena, Ramiro, Ana M. García-López, and Antonio Delgado. "Zinc Uptake by Plants as Affected by Fertilization with Zn Sulfate, Phosphorus Availability, and Soil Properties." Agronomy 11, no. 2 (February 22, 2021): 390. http://dx.doi.org/10.3390/agronomy11020390.
Повний текст джерелаАнотація:
Zinc (Zn) deficiency constrains crop yield and quality, but soil factors influencing Zn availability to plants and reactions of applied Zn fertilizer are not fully understood. This work is aimed at studying Zn availability in soil and the use efficiency of Zn fertilizers by plants as affected by soil properties and particularly by soil available P. We performed a pot experiment involving four consecutive crops fertilized with Zn sulfate using 36 soils. The cumulative Zn uptake and dry matter yield in the four crops increased with increased initial diethylenetriamine pentaacetic acid extraction of Zn (DTPA-Zn) (R2 = 0.75 and R2 = 0.61; p < 0.001). The initial DTPA-Zn increased with increased Olsen P (R2 = 0.41; p < 0.001) and with increased ratio of Fe in poorly crystalline to Fe in crystalline oxides (R2 = 0.58; p < 0.001). DTPA-Zn decreased with increased cumulative Zn uptake, but not in soils with DTPA-Zn < 0.5 mg kg−1. Overall, the available Zn is more relevant in explaining Zn uptake by plants than applied Zn sulfate. However, in Zn-deficient soils, Zn fertilizer explained most of the Zn uptake by crops. Poorly crystalline Fe oxides and P availability exerted a positive role on Zn availability to plants in soil.
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Sadiq, Maqsood, Usama Mazhar, Ghulam Abbas Shah, Zeshan Hassan, Zahid Iqbal, Imran Mahmood, Fahad Masoud Wattoo, et al. "Zinc Plus Biopolymer Coating Slows Nitrogen Release, Decreases Ammonia Volatilization from Urea and Improves Sunflower Productivity." Polymers 13, no. 18 (September 18, 2021): 3170. http://dx.doi.org/10.3390/polym13183170.
Повний текст джерелаАнотація:
Currently, the global agriculture productivity is heavily relied on the use of chemical fertilizers. However, the low nutrient utilization efficiency (NUE) is the main obstacle for attaining higher crop productivity and reducing nutrients losses from these fertilizers to the environment. Coating fertilizer with micronutrients and biopolymer can offer an opportunity to overcome these fertilizers associated problems. Here, we coated urea with zinc sulphate (ZnS) and ZnS plus molasses (ZnSM) to control its N release, decrease the ammonia (NH3) volatilization and improve N utilization efficiency by sunflower. Morphological analysis confirmed a uniform coating layer formation of both formulations on urea granules. A slow release of N from ZnS and ZnSM was observed in water. After soil application, ZnSM decreased the NH3 emission by 38% compared to uncoated urea. Most of the soil parameters did not differ between ZnS and uncoated urea treatment. Microbial biomass N and Zn in ZnSM were 125 and 107% higher than uncoated urea, respectively. Soil mineral N in ZnSM was 21% higher than uncoated urea. Such controlled nutrient availability in the soil resulted in higher sunflower grain yield (53%), N (80%) and Zn (126%) uptakes from ZnSM than uncoated fertilizer. Hence, coating biopolymer with Zn on urea did not only increase the sunflower yield and N utilization efficiency but also meet the micronutrient Zn demand of sunflower. Therefore, coating urea with Zn plus biopolymer is recommended to fertilizer production companies for improving NUE, crop yield and reducing urea N losses to the environment in addition to fulfil crop micronutrient demand.
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Kurešová, Gabriela, Ladislav Menšík, Jan Haberle, Pavel Svoboda, and Ivana Raimanova. "Influence of foliar micronutrients fertilization on nutritional status of apple trees." Plant, Soil and Environment 65, No. 6 (June 19, 2019): 320–27. http://dx.doi.org/10.17221/196/2019-pse.
Повний текст джерелаАнотація:
The effect of leaf-applied fertilizers on nutritional status and yields of apple cv. Rubinola grown on two soil types (Luvisol, Cambisol) differing in yield levels was studied in a three-year experiment at the orchard in Vanovice, Czech Republic. Two fertilizers, A (containing N, Mg, Ca, B and Zn) and B (N, B, Zn, Mn and Fe) were applied after blooming, leaves and fruit were analyzed. Zn and B concentrations increased significantly in leaves and fruit in both soils after the application of solution A compared to the control. Foliar fertilizer B increased the concentration of Zn and Mn significantly both in leaves and fruit compared to the control. The content of Mn in dry leaf matter increased almost 4 times (from the control level about 30 mg/kg), of B up to 1.5 times (from 28 mg/kg) and the content of Zn even more than 10 times (from 15 mg/kg). The application of foliar fertilizers was more efficient in the Cambisol orchard section with worse soil conditions; however, the enhanced nutritional status did not significantly increase fruit yields in either of the experimental soil types.
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Wewa atia Al-juthery, Hayyawi, and Sahar Fadhil saadoun. "Fertilizer Use Efficiency of nano fertilizers of micronutrients foliar application on Jerusalem artichoke." Al-Qadisiyah Journal For Agriculture Sciences (QJAS) (P-ISSN: 2077-5822 , E-ISSN: 2617-1479) 9, no. 1 (March 7, 2019): 156–64. http://dx.doi.org/10.33794/qjas.vol9.iss1.74.
Повний текст джерелаАнотація:
field experiment was carried out in one of the fields of plot 158 district 41 Husseiniya, township of Taliaa, Babylon Governorate, to study fertilizer use efficiency of nano fertilizers micronutrients foliar application on Jerusalem artichoke (Helianthus tuberosus L.).The experiment included 17 treatments of spraying the nano-fertilizes micronutrients of nano iron 13% Fe ,nano zinc 20% Zn, nano copper 15% Cu and nano manganese 18% Mn, single spray, dual, triple and quadruple combinations, as well as a quadratic combination of a traditional source as well as the treatment of water-only control. In nutrients content in arial parts and tubers, nutrients uptake, total uptake ,FUE,MNUE. RCBD design with three replicates, and the solutions were sprayed early in the morning after 60 days of planting and at 25, 50, 75 and 100 g fertilizer 100 L-1 Water for to spray the first, second, third and fourth respectively, and according to the recommendation by 1 kg Naon fertilizers h-1, and another 400 liters of spray solution h-1.The results of the duncan test showed a probability level of 0.05 The superiority of the single spray treatments followed by the treatment of nano (Zn+Cu+Fe+Mn) in micronutrients content of arial parts and tubers of zinc, copper, iron, manganese and total uptake, While achieved the nutrient use efficiency of nano-zinc, nano-copper, nano-iron and nano-manganese (93.10, 85.00, 99.00 and 85.50%) sequentially. For individual spray treatments and (91.60, 81.30, 91.85, and 83.40%) sequentially for the treatment of nano spray common quartet (Zn + Cu + Fe + Mn).
11
Choudhary, M., L. D. Bailey, C. A. Grant, and D. Leisle. "Effect of Zn on the concentration of Cd and Zn in plant tissue of two durum wheat lines." Canadian Journal of Plant Science 75, no. 2 (April 1, 1995): 445–48. http://dx.doi.org/10.4141/cjps95-074.
Повний текст джерелаАнотація:
Irrespective of fertilizer treatments, durum wheat (Triticum turgidum L. var durum) Cd concentration was lowest in the grain and highest in the roots and was in the order: root > leaf > stem > grain. Soil-applied Zn decreased the Cd concentrations in durum wheat grain, leaf, stem, and root. But, foliar application of Zn resulted in Zn loading of the leaf and stem and had little effect on plant Cd concentration. Application of P and N plus P fertilizer increased tissue Cd concentration and decreased stem and leaf Zn concentration to near insufficiency, while application of Zn to soil with N plus P fertilizers increased tissue Zn concentration to sufficiency level and decreased plant Cd concentration of the two durum wheat lines. Key words: Cd, durum wheat, Zn, dry matter, plant tissue
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Gonzalez, Demetrio, Patricia Almendros, and Jose M. Alvarez. "Effects of synthetic Zn chelates on flax response and soil Zn status." Spanish Journal of Agricultural Research 14, no. 3 (August 31, 2016): e1104. http://dx.doi.org/10.5424/sjar/2016143-8765.
Повний текст джерелаАнотація:
Throughout the world, flax (Linum usitatissimum L.) is often grown in Zn-deficient soils, but appropriate fertilizer management can optimize both crop yield and micronutrient content. A greenhouse experiment was conducted on Typic Haploxeralf (pH 6.1) and Typic Calcixerept (pH 8.1) soils to study the relative efficiency of chelated Zn using two application rates of three different Zn sources [Zn-EDDHSA, ethylenediamine-di-(2-hydroxy-5-sulfophenylacetate of Zn); Zn-HEDTA, N-2-hydroxyethyl-ethylenediaminetriacetate of Zn; and Zn-EDTA, ethylenediaminetetraacetate of Zn]. Dry matter /DM) yield, Zn concentration, chlorophyll content, crude fiber and tensile properties were monitored and the soil-Zn status (available-Zn, Zn-fractions and total-Zn) was assessed. Zinc chelate applications increased the most labile forms of Zn in soils and Zn concentrations in plants. The low rate of Zn generally had a beneficial effect on DM yield and tensile properties. The exception was Zn-EDTA in the weakly acidic soil, where the highest Zn concentrations were observed in leaves and whole shoots; this coincided with the largest concentrations of labile Zn in soil. The most efficient fertilizers were Zn-EDDHSA (in both soils) and Zn-EDTA (in the calcareous soil). The relatively large amounts of labile and available Zn present in both of the soils fertilized with Zn-EDTA points to the applying this chelate at lower rate than 5 mg Zn/kg; this should, in turn, reduce the cost of Zn fertilization and minimize environmental pollution risk.
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Jiao, You, Cynthia A. Grant, and Loraine D. Bailey. "Growth and nutrient response of flax and durum wheat to phosphorus and zinc fertilizers." Canadian Journal of Plant Science 87, no. 3 (July 1, 2007): 461–70. http://dx.doi.org/10.4141/p05-212.
Повний текст джерелаАнотація:
Flax (Linum usitatissimum L.) and durum wheat (Triticum turgidum L.) are important agricultural crops that enter the human food chain. Effective nutrient management considering nutrient interactions is important in order to increase crop yield and improve crop nutrient concentration. The objective of this study was to investigate the effect of P and Zn fertilizers on the yield and nutritional value of flax and durum wheat. A pot culture experiment conducted in a growth chamber using a calcareous clay-loam soil showed that P fertilizers can restrict flax growth due to an antagonistic effect of Zn fertilizer but can increase the seed yield of both crops by enhanced dry matter translocation to the seed/grain. Among the P sources, commercial monoammonium phosphate (CMAP) and commercial triple superphosphate (CTSP) had similar effects on growth and yield, but different impacts on the nutrient concentrations of both crops, indicating the importance of selecting P source to improve crop quality. Zinc addition with reagent grade P decreased the concentrations of P, K, Ca, Mg and Cu in flax but not in durum wheat. We conclude that proper combination of P and Zn fertilizers is necessary to optimize crop yields, but that P had a proportionally greater effect in promoting yield in durum wheat than in flax. In contrast, Zn had a greater impact on mineral composition in flax than in durum wheat, which can affect the nutritional quality of the crop as a component of the human diet. Key words: Flax, durum wheat, P and Zn fertilizers, nutrient, essential trace elements
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Sobirova, Mukaddas, and Sayyora Murodova. "Effects of biopraparites on cynara scolymus L., micro and macroelements, and quantity of flavonoids." E3S Web of Conferences 258 (2021): 04025. http://dx.doi.org/10.1051/e3sconf/202125804025.
Повний текст джерелаАнотація:
Abstact. In this study, the effect of “Zamin-M” biopreparation on the content of some macronutrients, microelements and flavonoids in the leaf extract of thorny artichoke (Cynara scolymus L) belonging to the family Asteraceae was determined by 4 different factors: control, mineral fertilizer, biopreparation, biopreparation study and mineral fertilizer. The order of decreasing the concentration of macro-microelements in the control variant changed for K>Na> Ca>Mg>P and Fe>Si>Al>Mn>Zn>Cu>Se>Co. In plants treated with “Zamin-M” biopreparation, changes in Ca>Na>Mg>K>P and Fe>Al>Si >Mn>Zn>Cu>Co>Se were found. When determining the effect of Zamin-M biopreparation on the flavonoids in artichoke leaves, it was noted that the amount of quercetin in plants increased by 93.05% compared to plants treated with mineral fertilizers. The amount of rutin was increased by 54.94% in plants treated with “Zamin-M”, it was 57.55% in plants treated with mineral fertilizers, and it was 59.60% in plants treated with mineral fertilizers + “Zamin-M” biopreparation.
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Sulewska, Hanna, Alicja Niewiadomska, Karolina Ratajczak, Anna Budka, Katarzyna Panasiewicz, Agnieszka Faligowska, Agnieszka Wolna-Maruwka, and Leszek Dryjański. "Changes in Pisum sativum L. Plants and in Soil as a Result of Application of Selected Foliar Fertilizers and Biostimulators." Agronomy 10, no. 10 (October 13, 2020): 1558. http://dx.doi.org/10.3390/agronomy10101558.
Повний текст джерелаАнотація:
The aim of this study was to assess the effect of selected biostimulators and foliar fertilizers on plant development, plant yield, soil fertility and soil biochemical activity (dehydrogenases, phosphatases, catalases) during the cultivation of pea (Pisum sativum L.). A field experiment was conducted between 2016 and 2018 at the Gorzyń Experimental and Educational Station, Poznań University of Life Sciences in Poland. The following treatments were tested: (1) control; (2) Titanit; (3) Optysil; (4) Metalosate potassium; (5) Rooter; (6) Bolero Mo; (7) Adob Zn IDHA; (8) Adob B and (9) Adob 2.0 Mo. Adob Zn IDHA stimulated yields, especially under average moisture conditions and less so in drought conditions, and the differences compared to control amounted 8.36 and 4.3%, respectively. The results showed a close relationship between the effects of the biostimulators and foliar fertilizers and weather conditions during the study. It was not possible to determine whether any of the biostimulators or foliar fertilizers had a positive effect on pea seed yield in any year. Similarly, it was difficult to clearly determine the effect of the biostimulators and fertilizers on biochemical activity in the soil, although soil enzyme activity was influenced most by application of the Bolero Mo fertilizer. In all study years, biological nitrogen fixation was always greater after the application of a biostimulator/fertilizer treatment.
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Kouadio, Hypolith K., Alain Jacques A. Kotaix, Sydiki Bakayoko, Emmanuel K. Kassin, Aïdara Sékou, Jean Noël Ehounou, Norbert N. Kouamé, Marise E. Assi, and Louis Koko. "Mineral Fertilizers Influence the Macrofauna of Soils Under Cocoa Trees in the South-Western Côte d’Ivoire." Journal of Agricultural Science 13, no. 2 (January 15, 2021): 32. http://dx.doi.org/10.5539/jas.v13n2p32.
Повний текст джерелаАнотація:
A study on mineral fertilization of soils was carried out for two years in three cocoa farms in the Nawa region of south-western Côte d’Ivoire. The aim of this study was to evaluate the effects of mineral fertilizers on soil macrofauna. The experimental design was Fisher block with four treatment with three repetitions. The treatments were control without fertilizer (T0), NPK 0-23-19 fertilizer (T1), NPK 0-15-15 + 17 CaO + 5 MgO + 1 B2O3 + 0.5 Zn (T2) and NPK 4-10-10 + 19 CaO + 4 MgO + 0.8 B2O3 + 0.3 Zn (T3). Twelve soil monoliths were made per treatment and per site, to count the macrofauna of the soil. Each soil monolith was subdivided into three strata 0-10 cm, 10-20 cm and 20-30 cm. The organisms were counted and classified into functional groups. The abundance, species richness and diversity indices of Shannon-weaver and Piélou were determined. The analysis of variance of the numbers of individuals in the macrofauna did not show a significant difference between the treatments on different strata of the monoliths during the second year of the trial. However, during the first year, all the treatments with fertilizer in the 0-10 cm stratum had a more abundant macrofauna than that of the control without fertilizer at Soubré and Mayo. Multivariate analyses (AFC) showed links between functional groups of organisms and treatments. Myriapods and earthworms were linked to the T2 and T3 treatments, microarthropods to T1 and other organisms to T0. As for macrofauna diversity, the highest value of species richness (7 species), Shannon-weaver (2) and Piélou (1) indices were found in the fertilized treatments. Mineral fertilizers thus presented better conditions for the expansion of macrofauna. A reasoned application of mineral fertilizers creates a favourable living environment for certain soil organisms.
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Santos, Wedisson Oliveira, Priscila Maria de Aquino, Rafael Lucas Coca Cuesta, Isabela Maísa Honorato Saldanha, Edson Marcio Mattiello, and Leonardus Vergütz. "Zinc Diffusion and Availability Affected by Different Sources in Soils of Contrasting Textures." Journal of Agricultural Science 11, no. 5 (April 15, 2019): 259. http://dx.doi.org/10.5539/jas.v11n5p259.
Повний текст джерелаАнотація:
Trends in new fertilizer technologies should balance the nutrient release rate from fertilizers with plant demands over time, while developing suitable physical characteristics of the fertilizer’s particles. The objective of this study was to evaluate the performance of three zinc fertilizers [ZnO, ZnSO4, and a commercial co-granulated ZnO+S0 fertilizer (ES_Zn)] on Zn diffusion in soil and their agronomic performances. A Petri dish trial was carried out in order to evaluate the diffusion of Zn in the soil. The experiment was designed as a factorial scheme (3 + 1) × 2 × 3, with three Zn sources, one control treatment (without Zn application), two soils of contrasting textures (sandy and clay), and three incubation times (1, 30 and 60 d). The experiment was carried out under a completely randomized design with four replications. Zinc diffusion was assessed according to the method proposed by Degryse et al. (2015) along of incubation times. For that, a ZnSO4 solution or ZnO suspension was applied by pipetting 15 μL of solution or suspension into a small hole (~0.5-cm deep) in the center of the Petri dish. A single pastille of ES_Zn fertilizer (30±0.5 mg) was placed in the center of the Petri dish, at the same depth. Soil was watered to 80% of field capacity. Filter papers (Whatman) were impregnated with CaCO3 and placed on the soil surface. After 2 h of reaction, the CaCO3-impregnated filter papers were collected, and the precipitated Zn in the papers was colored with dithizone, giving a pink color. The performance of Zn sources was evaluated in a greenhouse through a successive maize-soybean-millet crop. The trial was designed as a 2 × (3 × 3 +1) factorial scheme, being two soils (sandy and clay), three Zn sources (ZnSO4, ZnO, and ES_Zn), three Zn doses (1.5, 3.0, and 6.0 mg dm-3 Zn), and a control treatment. The experiment was a randomized block design with four replications, being the experimental unit composed of a pot with 4 dm3 of soil. Pastille ES_Zn, ZnO (as suspension), and ZnSO4 (as solution) were applied at five equidistant points, at 5 cm below the soil surface. After 30, 60 and 60 days of planting, shoot of maize soybean and millet were harvest, oven-dried at 70 °C for 72 h (until constant weight), weighed and milled for chemical analysis. ES_Zn fertilizer promoted a delay Zn release in the soil, being effective as a fertilizer only in the last crop (millet), as well as ZnO. Zinc oxide and ZnSO4 had similar performances for increasing Zn availability in the inner soil portion, but its diffusion in soil was superior when the source was sulfate. The highly soluble ZnSO4 was more effective than ZnO-based fertilizers in terms of plant nutrition, especially for the two first crops. Our results also suggest that ZnO is solubilized in soil at high pH (6.6), its dispersion in soil being a key factor for the dissolution rate.
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Kovačević, Dragan. "The concentrations of Zn and Cd in soil and corn plants affected by phosphorus fertilization in a long-term field experiment." Pakistan Journal of Agricultural Sciences 58, no. 06 (February 1, 2021): 1681–88. http://dx.doi.org/10.21162/pakjas/21.8.
Повний текст джерелаАнотація:
Intensive application of nitrogen and phosphorus fertilizers can lead to negative consequences, such as a decrease in Zn content, as well as an increase of Cd in plants. In a long-term field experiment, we studied the influence of the increasing doses of phosphorus fertilizers on the concentration of Zn and Cd in the soil and corn plants (stem and leaves). The obtained results show that the application of the increasing doses of phosphorus significantly decreased the pH reaction of the soil, but did not affect the amount of total and potentially available Zn in the soil. Zinc was accumulated in the corn stem to a higher extent on the unfertilized treatment with respect to corn stem exposed to other fertilizing treatments. Bearing in mind the fact that phosphorus fertilizers contain a different concentration of Cd, results have shown that the long-term application of the increasing doses of phosphorus has led to higher amounts of Cd in the soil and in corn as well, in the plots fertilized with 100 and 150 kg P2O5/ha. However, those values are far below the maximum permissible recommendation.
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Kumar, Dileep, Khusvadan C. Patel, Vinubhai P. Ramani, Arvind K. Shukla, Sanjib Kumar Behera, and Ravi A. Patel. "Influence of Different Rates and Frequencies of Zn Application to Maize–Wheat Cropping on Crop Productivity and Zn Use Efficiency." Sustainability 14, no. 22 (November 15, 2022): 15091. http://dx.doi.org/10.3390/su142215091.
Повний текст джерелаАнотація:
Nowadays, zinc (Zn) fertilizers are commonly used for quality food production globally. Knowledge about proper application time and rates of commercial Zn fertilizers is necessary to obtain higher crop production and improve Zn use efficiency. A long-term field experiment was conducted during 2012 to 2018 at Anand Agricultural University, Anand (Gujarat), India, to find out the right Zn fertilizer dose and its frequency of application in maize–wheat cropping systems grown on typic haplustepts soil. The study comprised of three frequency levels, i.e., Zn application in the first year only (F1), alternate year (F2), and every year (F3), with four different rates of Zn, i.e., 2.5, 5.0, 7.5, and 10.0 kg Zn ha−1 per year imposed in the maize–wheat cropping system in each kharif season (during June to September) for six years. Findings of the study revealed that Zn applications to maize at 7.5 and 10 kg ha−1 in alternate year and 5.0 to 10 kg ha−1 in every year significantly increased maize equivalent yield as compared to no-Zn treatment. Application of 10.0 kg Zn ha−1 per year produced higher grain size, straw, and total Zn concentrations compared to those observed under no-Zn application in maize and wheat crops. Diethylene triamine penta acetic acid extractable Zn concentration in soil was higher in Zn treated plots which received Zn application at 5.0, 7.5, and 10.0 kg ha−1 in alternate years and 10 kg ha−1 in every year as compared to no-Zn application. Apparent Zn recovery efficiency varied from 0.17 to 1.46% for maize crop and 0.34 to 1.70% for wheat crop under different rates and frequencies of Zn application. The above results emphasize the importance of Zn retention capacity of soil regarding its response to different rates and frequencies of Zn application to maize and wheat crops.
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Niewiadomska, Alicja, Hanna Sulewska, Agnieszka Wolna-Maruwka, Karolina Ratajczak, Zyta Waraczewska, and Anna Budka. "The Influence of Bio-Stimulants and Foliar Fertilizers on Yield, Plant Features, and the Level of Soil Biochemical Activity in White Lupine (Lupinus albus L.) Cultivation." Agronomy 10, no. 1 (January 20, 2020): 150. http://dx.doi.org/10.3390/agronomy10010150.
Повний текст джерелаАнотація:
The aim of this study is to assess the effect of two biostimulators (Titanit, Rooter) and six foliar fertilizers (Optysil, Metalosate Potassium, Bolero Bo, ADOB 2.0 Zn IDHA, ADOB B, ADOB 2.0 Mo) on white lupine. In addition, we evaluated the enzymatic activity of dehydrogenase, acid, and alkaline phosphatases, catalase, the level of biological nitrogen fixation, yield, plant biometric, chlorophyll fluorescence and chlorophyll content. A field experiment was conducted between 2016 and 2018 at the Gorzyń Experimental and Educational Station, Poznań University of Life Sciences in Poland. The best effects in plant yield were obtained after the application of Optysil or ADOB Zn IDHA. The three years results of dehydrogenase (DHA), alkaline phosphatase (PAL), and the biological index of soil fertility (BIF), show that the bio-stimulants and most of the foliar fertilizers used did not always stimulate the activity of these enzymes and index in the white lupine crops, as compared with the control treatment. Analysis of the results of the acid phosphatase activity (PAC) shows that during the entire white lupine growing season the foliar fertilizers and bio-stimulants decreased the activity of this enzyme. This effect was not observed when the Metalosate potassium foliar fertilizer was applied. The field analyses of biological nitrogen fixation showed that the fertilizers and bio-stimulants significantly stimulated nitrogenase activity under the white lupine plantation. The best effects in plant yield were obtained after application Optysil or ADOB Zn IDHA.
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BARAL, KIRTTIRANJAN, DINESH KUMAR, and YASHBIR SINGH SHIVAY. "Effect of zinc oxide nanoparticles embedded NPK fertilizer on growth, yield and zinc concentration and uptake of aromatic rice (Oryza sativa)." Indian Journal of Agricultural Sciences 90, no. 8 (October 14, 2020): 1626–30. http://dx.doi.org/10.56093/ijas.v90i8.105980.
Повний текст джерелаАнотація:
Application of ZnO nanoparticles in conjunction with NPK fertilizers helped in increasing growth parameters, enhancement in Zn concentration in rice grain and straw and also grain yield and could save a significant amount of nutrients. As highest grain yield was recorded with application of 100% NPK + 7.5 g ZnO Nps/ha which was statistically at par with 75% NPK + 7.5 g ZnO Nps/ha, hence it can be concluded that application of 75% NPK + 7.5 g ZnO Nps/ha is best as it required 25% less NPK. Likewise, ZnO nanoparticles application had a significant effect on Zn concentrations. Therefore, it can be inferred that ZnO nanoparticles application embedded with NPK fertilizer can save nutrients, increase nutrient concentration and also profit can be accrued due to less requirement of nutrients than recommended dose of fertilizers.
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Kulczycki, Grzegorz, Rafał Januszkiewicz, and Artur Jachymczak. "The effect of foliar application of Ekolist fertilizer on maize yielding and chemical composition." Agronomy Science 63, no. 4 (December 22, 2008): 59–64. http://dx.doi.org/10.24326/as.2008.4.8.
Повний текст джерелаАнотація:
A pot experiment was conducted in Wagner-type pots of 5 kg soil capacity. The medium used for the investigation was light loam containing 22% of silt and clay. The plant subjected to testing was Blask variety of maize collected in caryopsis milk stage. The experimental scheme involved foliar application of Ekolist fertilizers: Mikro K, Mono Zn and Mono B within the frames of two levels of N fertilization 0.8 g (N1) and 1,6 g ( N2) per one pot as well as control object without foliar fertilizer used. The research showed that foliar application of Ekolist fertilizers at a lower nitrogen dose did not significantly affect the increase of maize dry matter yield in com-parison to control object. Fertilization with a higher nitrogen dose by foliar application of Ekolist Mono Zn and Ekolist Mono B fertilizers did significantly affect the increase in dry matter yield of maize in comparison to the control object. The highest content of microelements applied (Zn and B) was found in leaves and stems of maize for foliar application of Ekolist Mono and the mean content of analyzed microelements in aboveground parts of maize was higher with N-1 nitrogen dose in comparison to a higher nitrogen dose N-2.
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Janmohammadi, Mohsen, Hedayat Abdoli, Naser Sabaghnia, Mohammad Esmailpour, and Ahmad Aghaei. "The Effect of Iron, Zinc and Organic Fertilizer on Yield of Chickpea (Cicer artietinum L.) in Mediterranean Climate." Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis 66, no. 1 (2018): 49–60. http://dx.doi.org/10.11118/actaun201866010049.
Повний текст джерелаАнотація:
Chickpea is one the most important legume crops in Mediterranean semi-arid regions and its sustainable production strongly depends on the nutrient management and water availability. Soils of these regions generally have high pH, and low organic matter, which reduce the availability of micronutrients and led to multi-micronutrient deficiencies. For estimating the effect of integrated application of different levels of organic fertilizer (zero, 20 t ha-1, 40 t ha-1) and micronutrient fertilizers (Zn, Fe) on agronomic traits and yield components of chickpea, an experiment was carried out at the highland semi-arid regions in Piranshahr district (36° 40ʹ N, 45° 08ʹ E; 1840 m). Assessment of phenological development revealed that plants grown under control condition (no-organic and micronutrients fertilizer) had a significantly slower development. Assessment of agronomic characteristics showed that application of micronutrients fertilizer substantially increased plant height, first pod height, canopy width, number of the seed, seed weight, economic and biological yield compared to control condition. By increasing the application rate of organic fertilizer its positive effects became more impressive on growth and yield component. The best growth performance was recorded by integrated application of 40 t ha-1 organic fertilizer and micronutrients fertilizers. However, there was no significant difference between fertilizer of Fe and Zn. Overall, the results indicated that the studied site is facing with micronutrient deficiencies and application organic fertilizer can noticeably improve the efficiency of micronutrients fertilizer. A quick and supplementary approach is therefore required for remedy of both Zn and Fe deficiencies in the short term. The finding showed that a substantial yield improvement is possible by integrated application of organic and micronutrient fertilizer.
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Barcellos, Milena, Antonio Carlos Vargas Motta, Volnei Pauletti, José Carlos Peixoto Modesto Da Silva, and Julierme Zimmer Barbosa. "Atributos químicos de Latossolo sob plantio direto adubado com esterco de bovinos e fertilizantes minerais." Comunicata Scientiae 6, no. 3 (December 29, 2015): 263. http://dx.doi.org/10.14295/cs.v6i3.527.
Повний текст джерелаАнотація:
Organic fertilization in no-tillage system (NTS) has been used in regions milk production, in an order to provide nutrients for crops and provide a destination for high production of animal waste. The aim of this study was to evaluate the chemical attributes of an Oxisol, a function of organic fertilization with liquid manure from dairy cattle (LMDC) and mineral fertilizers. The experiment was conducted under NTS with crop rotation including legumes and grasses. The treatments were distributed in three randomized blocks with factorial arrangement, using three levels of mineral fertilizer (0, 50 and 100 % of the dose recommended for the crops) and four levels of organic fertilizer (0, 30, 60 and 90 m3 ha-1year-1). After six years of fertilizer management of crops, soil was collected from five depths (0-0.05, 0.05-0.10, 0.10-0.30, 0.30-0.50 e 0.50-0.80 m). The samples were determined the chemical pH, H++Al3+, Al3+, Ca2+, Mg2+, K+,electrical conductivity (EC), bases saturation (V), Ca2+/Mg2+ ratio, total organic C (TOC), B, Cl, Fe, Cu, Zn and Mn. The mineral fertilizers acidify the soil, raised the K+, P and EC and, changed the Zn and Cu contents. The organic fertilization with LMDC was a source of nutrients (Ca 2+, Mg2+, K+, P, Zn and Cu), raised the TOC and the EC, and kept the soil acidity attributes (pH, H++ Al3+ and V).
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Roberts, Warren, Jim Duthie, and Jonathan Edelson. "Cucumber Yield and Soil Nutrient Changes with Poultry Litter and Synthetic Fertilizers." HortScience 31, no. 4 (August 1996): 610d—610. http://dx.doi.org/10.21273/hortsci.31.4.610d.
Повний текст джерелаАнотація:
Soils in eastern Oklahoma have low N and P levels. The poultry industry in the area produces large amounts of poultry litter. Horticultural producers could benefit from using the poultry litter as a fertilizer for various crops, but many horticultural crops require a fertilizer with a ratio of about 2:1:3 (N: P2O5: K2O). Poultry litter has an approximate ratio of 1:1:1. Poultry litter applied at a rate to supply all needed N or K will supply more P than is needed by the current crop, although low P soils can accumulate significant amounts of P before the P levels are excessive. Poultry litter at different rates and synthetic fertilizers have been applied for 3 years to a field in which cucumbers were produced. Poultry litter rates supplied N at as much as 500 kg·ha–1 and P2O5 at as much as 300 kg·ha–1. Cucumber yields were recorded, and soil tests were conducted three times a year for N, P, K, Ca, Mg, Mn, Cu, Pb, Zn, and Fe. Cucumber yields from plots fertilized with poultry litter were equal to or greater than yield from plots that received commercial fertilizer. There appears to be a trend toward increasing levels of soil P with all treatments. and decreasing levels of soil Zn with all treatments. After 3 years, there is no evidence of detrimental levels of any of the monitored elements.
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Souza Júnior, José Olimpio de, Felipe Gomes Frederico da Silveira, Railton Oliveira dos Santos, and Júlio César Lima Neves. "Zinc Fertilizers and Additives for Foliar Fertilization of Cocoa Seedlings." Journal of Agricultural Science 11, no. 1 (December 15, 2018): 471. http://dx.doi.org/10.5539/jas.v11n1p471.
Повний текст джерелаАнотація:
Foliar fertilization is an interesting strategy for nutrition with micronutrients in perennial plants; among the micronutrients, zinc (Zn) deficiency is the most frequent in cocoa trees (Theobroma cacao L.). The present study aimed to evaluate the efficiency of Zn sources through foliar application for the cocoa crop. The experiment was carried out in a randomized block design, with 10 treatments and four replicates. Treatments were: foliar fertilizations containing 1 g L-1 of Zn using two inorganic sources (chloride and sulfate), in the presence or absence of additives (urea and sucrose); two organic sources (Zn-EDTA, and from chloride and sulfate); soil fertilization with 8 mg dm-3 of Zn, and a control (without addition of Zn). Foliar fertilizations with Zn were monthly applied for five months, and the experiment was conducted for 210 days. The results were subjected to analyses of variance and contrast. Zn fertilization, regardless of the form of application, increased Zn contents and accumulations in the leaves. Zn fertilization in the soil, at planting, led to a recovery rate by the plant similar to the mean value caused by foliar fertilizations. ZnCl2 caused higher Zn contents and accumulations in the leaves and was more efficient than sulfate and EDTA; addition of urea to the ZnSO4 solution increased Zn accumulation in the leaves, whereas addition of sucrose to the ZnCl2 solution reduced Zn content in the leaves.
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Meena, R. H., G. Jat, and D. Jain. "Impact of foliar application of different nano-fertilizers on soil microbial properties and yield of wheat." Journal of Environmental Biology 42, no. 2 (March 1, 2021): 302–8. http://dx.doi.org/10.22438/jeb/42/2/mrn-1465.
Повний текст джерелаАнотація:
Aim: The present investigation was carried out to study the effect of foliar application nano-fertilizers P, K and Zn on yield, nutrient content and uptake by wheat and soil microbial properties in sub-humid southern plains of Rajasthan. Methodology: The experiment was laid out in triplicate following randomized block design with fifteen treatments comprising foliar application of different doses of Nano P, K and Zn. Results: Foliar application of 1st spray of Nano Zn at 14 days after sowing (DAS) + 2nd spray of Nano Zn at 28 DAS along with 100% recommended dose of fertilizers (RDF) significantly (P=0.05) increased yield attributes and nutrient uptake in wheat. The significantly (P=0.05) maximum microbial population (bacteria and fungi) and microbial biomass-C was obtained with 1st spray of Nano P at 14 DAS + 2nd spray of Nano P at 28 DAS along with 100% recommended dose of fertilizers (RDF). Interpretation: Foliar application of nano fertilizers led to significant improvement of crop productivity of wheat in sub-humid southern plain of Rajasthan. Moreover, the foliar application of nano-fertilizers, i.e., Nano P also stimulated microbial growth by providing nutrients and directly increased their population in soil. Key words: Biomass-C, Foliar application, Nano-fertilizers, Soil microbial population, Wheat productivity
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Dogra, Prerna, Chiranjeev Kumawat, Omprakash, Aabha Parashar, and Kamini Parashar. "Zinc fertilizer : Potent public health intervention under COVID-19." INTERNATIONAL JOURNAL OF PLANT SCIENCES 17, no. 1 (January 15, 2022): 109–16. http://dx.doi.org/10.15740/has/ijps/17.1/109-116.
Повний текст джерелаАнотація:
Corona virus disease 2019 (COVID-19) caused by severe acute respiratory syndrome corona virus 2 (SARS-CoV-2) represents the biggest current health challenge for the society. At the moment, the therapeutic strategies to deal with this disease are only supportive. It is well evident that zinc (Zn) possesses a variety of direct and indirect antiviral properties, which are realized through different studies during the course of time. Administration of Zn supplement has a potential to enhance antiviral immunity, both innate and humoral, and to restore depleted immune cell function or to improve normal immune cell function, particular in immune-compromised or elderly patients.In recent years, the increasing zinc (Zn) deficiency problem has garnered attention and appears to be the most serious micronutrient deficiency along with vitamin A deficiency. The concentration of Zn in cereal crops is inherently very low and growing cereals on potentially Zn-deficient soils further decreases grain Zn concentrations. It is, therefore, not surprising that high Zn deficiency in humans occurs predominantly on areas where soils are deficient in plant-available Zn. Biofortification (enrichment) of crops with Zn and breeding new cereal genotypes for high grain Zn concentration is the most realistic and cost-effective strategy to address this problem. However, this strategy is a long-term one, and the size of plant-available Zn pools in soils may greatly affect the capacity of Zn-efficient (biofortified) cultivars to take up Zn and accumulate it in grains. Therefore, application of Zn-containing fertilizers represents a quick and effective approach to biofortify cereal grains with Zn. It is obvious that enrichment of widely applied fertilizers with Zn and/or foliar application of Zn fertilizers appear to be a high priority with the strongest potential to alleviate Zn deficiency-related problems in India. A Government action and policy plan for enrichment of selected major fertilizers with Zn is required urgently.
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Grohskopf, Marco A., Juliano C. Correa, Paulo C. Cassol, Rodrigo S. Nicoloso, and Dirceu M. Fernandes. "Copper and zinc forms in soil fertilized with pig slurry in the bean crop." Revista Brasileira de Engenharia Agrícola e Ambiental 20, no. 9 (September 2016): 823–29. http://dx.doi.org/10.1590/1807-1929/agriambi.v20n9p823-829.
Повний текст джерелаАнотація:
ABSTRACT The application of pig slurry may have different influence on copper (Cu) and zinc (Zn) dynamics in the soil compared with mineral fertilization. The aim of this research was to determine the different forms of Cu and Zn in soil and their uptake by bean plants in response to the application of mineral fertilizer and pig slurry (PS). The treatments were: mineral fertilizer (Cu and Zn oxides) and liquid pig slurry, at increasing rates (0/0, 1.7/6.0, 3.4/12.0 and 6.8/24.0 kg ha-1 Cu/Zn, respectively) applied in a Rhodic Kandiudox. PS increased the Cu content in soil in the exchangeable form, Fe oxides and residual, while the mineral fertilizer increased Cu contents in the fraction associated with soil organic matter. Soil Zn contents in the fractions available, exchangeable and SOM were highest under mineral fertilization, while in the soluble fraction the contents were highest under PS. The fertilizers had not impact on Cu and Zn contents associated with Al oxides, and these elements were mostly associated with Fe oxides in the soil. PS promoted the highest biomass production in shoots and roots of the bean plants, reflecting in the highest accumulation of Cu and Zn.
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Girma, Tsegaye, Birhanu Biazin, Sheleme Beyene, and Berga Lemaga. "Integrated Application of Organic and Blended Mineral Fertilizers Improves Potato Productivity and Income for Smallholder Farmers in Acidic Soils." Environment and Natural Resources Research 10, no. 1 (January 31, 2020): 61. http://dx.doi.org/10.5539/enrr.v10n1p61.
Повний текст джерелаАнотація:
Potato (Solanum tuberosum) is the world’s third most important food crop. However, potato productivity is very low in acidic soils that cover about 50% of the arable land in the world. Therefore, the aim of this study was to evaluate the effect of sole and integrated farmyard manure (FYM) and different types mineral fertilizers on yield, yield components and economic returns of potato in acidic soil of Ethiopia. Six treatments: 1) Control (without fertilizer), 2) sole application of the recommended NP (RNP) fertilizer (11 kg/ha N and 40 kg/ha P), 3) sole FYM (28.8 t/ha FYM), 4) half dose of recommended NP fertilizer and half dose of the FYM, 5) blended fertilizer formulated as 17.3 kg N, 34.7 kg P2O5, 7.41 kg S, 2.23 kg Zn, 0.3 kg B + 100 kg/ha), and 6) half blended and half FYM, were arranged in a randomized complete block design. The results revealed that potato plants amended with sole blended fertilizer, and integrated FYM and mineral fertilizers doubled fresh tuber yield as compared to the control. The RNP fertilizer gave the lowest (α < 0.05) marketable potato yields of all the fertilizer treatments. Applications of sole blended or integrated FYM and mineral fertilizers resulted in the highest net benefit with acceptable marginal rate of return. Integrated use of FYM and mineral fertilizers is crucial for improved and sustained smallholder potato production in acidic soils. Further studies are required to examine the long-term effects of blended fertilizers on soil properties.
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He, Chao, Lu Zhang, and Xianen Li. "Plant Performance and Soil Fungal Community Impacts of Enhancing Dioscorea opposita with Spraying Foliar Fertilizer with Different Nutrient Element Combinations." Agronomy 12, no. 9 (August 26, 2022): 2017. http://dx.doi.org/10.3390/agronomy12092017.
Повний текст джерелаАнотація:
Foliar fertilization, an effective method to regulate plant nutrition has attracted much attention. In this study, the effects of different foliar fertilizers (F1: NPK formulation, F2: NPK+Fe-Mn-Zn formulation, F3: Fe-Mn-Zn formulation, and CK: deionized water) on plant growth, chemical composition, rhizosphere soil properties, and fungal community of Dioscorea opposita Thunb. were assessed by a field plot experiment. Rhizosphere fungal community was examined via Illumina MiSeq sequencing of ITS2 rRNA genes. Spraying foliar fertilizer directly affected the growth and chemical content of the plant, which depends on different foliar fertilizers. Ascomycota and Moraxella were the dominant fungal phyla. Nutrient elements were the main factors affecting fungal composition, and soil microelements positively influenced soil fungi, while soil macroelements negatively influenced soil fungi. Macroelement foliar fertilizer affected soil fungi by directly affecting the growth parameters and macroelement content of the plant or by directly affecting soil properties, while microelement foliar fertilizer affected soil fungi by directly affecting the microelement content of the plant or by directly affecting the soil pH and organic matter content. These factors were involved in the formation of a “leaf-root-soil microbe” conduction system similar to the “brain-gut-microbe” axis. Our results provide a basis for the application of foliar fertilizer in the cultivation of medicinal plants.
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Janmohammadi, Mohsen, Akbar Seifi, Naser Sabaghnia, Ahmad Aghaee, and Shahriar Dashti. "The effect of concomitant use of nano-structured essential metals and sulfur on growth characteristics of safflower." Annales Universitatis Mariae Curie-Sklodowska, sectio C – Biologia 71, no. 1 (April 3, 2017): 41. http://dx.doi.org/10.17951/c.2016.71.1.41.
Повний текст джерелаАнотація:
Deficiencies of zinc, manganese and iron are common in calcareous soils of arid and semiarid regions due to their reduced solubility alkaline conditions. However, sustainable crop production is essential for growing population. Sulfur fertilizers can increase micronutrients availability by decreasing soil pH. In order to investigate the influence of nano-chelated essential metals (Zn, Mn, Fe) and sulfur application (zero and 40 kg ha-1) an experiment was carried out in Maragheh, northwest of Iran. Phenological development, morphological and agronomic traits significantly responded to both factors. Results revealed that application of sulfur fertilizer considerably increased morphological traits such as ground cover, stem diameter, plant height and capitulum diameter. Mean comparison between nano-chelated metal showed that the highest value for seed yield and yield components (number of the capitulum per plants, seed number per capitulum and seed weight) was achieved through the application of nano-chelated Zn. The best performance was related to combined application of sulfur and nano-chelated Zn which was followed by nano-chelated Fe. Seed oil content was only affected by nano-metals, so the highest value was obtained by application of nano-chelated Zn. Overall our finding revealed that integrated application of sulfur and essential metals, especially Zn, is required to grow safflower successfully on calcareous soils. The efficiency of nano-chelated fertilizers can be noticeably increased by balanced nutrient management in semi-arid regions.
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Kumar, Manoj, Ummed Singh, P. R. Raiger, L. Netajit Singh, H. P. Parewa, and Rekha Chouhan. "Micronutrient Fortification of Pearl Millet [Pennisetum glaucum (L.) R. Br.] Hybrids using Customized Fertilizer Formulation." International Journal of Bio-resource and Stress Management 12, no. 5 (October 31, 2021): 416–25. http://dx.doi.org/10.23910/1.2021.2438.
Повний текст джерелаАнотація:
The studies were undertaken at ICAR-AICRP on Pearl Millet, Research Farm, ARS, Mandor, Jodhpur (Agriculture University, Jodhpur), Rajasthan, India during July to October of both the 2019 and 2020. The experiment was consisted of three fertilizers (Control, Nutrient supply through straight fertilizers and Nutrient supply through customized fertilizer) and seven pearl millet hybrids (‘MPMH 21’, ‘MPMH 17’, ‘RHB 177’, ‘RHB 173’, ‘HHB 67 (Improved)’, ‘HHB 197’ and ‘HHB 272’) in FRBD and replicated thrice. Findings revealed, application of customized fertilizer of the grade 6:6:2:1 (N:P2O5:K2O:Zn) to pearl millet substantially enhanced Zn concentration in the roots, shoots, and leaves at panicle initiation (47.30, 54.31, 52.33 mg kg-1), 50% flowering (40.30, 50.96, 50.10 mg kg-1) and at harvest (45.27, 46.54, 47.29 mg kg-1), respectively, over control. Similarly, Fe concentration in the roots, shoots and leaves were also increased markedly due to the application of customized fertilizer. Substantially higher Zn (56.42 mg kg-1), Fe (39.50 mg kg-1), Mn (15.13 mg kg-1) and Cu (18.31 mg kg-1) concentrations in the pearl millet grain was also fetched by applying customized fertilizer. Moreover, customized fertilizer application statistically enhanced grain (2,010 kg) and straw (3,417 kg) yields over control. Among pearl millet hybrids, ‘HHB 67 Improved’ recorded substantially higher Zn (61.97 mg kg-1), Fe (43.98 mg kg-1) and Mn (15.46 mg kg-1) concentration in grain and Cu (25.09 mg kg-1) concentration in straw. Albeit, ‘HHB 173’ noticed significantly higher Cu (19.60 mg kg-1) concentration in grain. Further, among hybrids, ‘MPMH 17’ out yielded (1,958 kg ha-1) followed by ‘RHB 173’ (1,795 kg ha-1).
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Kahlel, Abdel-Monnem Sadalaha, Ali Ahmed Abdulla, Hamza Atheer Saadalla, and Mohammad Hashem Hamed. "Effect of Nano Fertilizers and Its Applying Methods on Growth Parameters of Senna (Cassia Angustifolia) Seedling Plant." IOP Conference Series: Earth and Environmental Science 923, no. 1 (November 1, 2021): 012003. http://dx.doi.org/10.1088/1755-1315/923/1/012003.
Повний текст джерелаАнотація:
Abstract The experiment was carried out at Plant Production Department, Agricultural Technical College, Mosul, Iraq at spring 2020 to investigate the effect of two Nano fertilizers kind (K 27%and Complex fertilizer Cu 1%, S 13%, Zn 11.5 %, Mn 6.5%, Fe7.5%, and Citric Acid 3.5 %.)and control (zero fertilizer). With three applying methods(spraying, soil addition, spraying + soil addition) on Senna seedlings. The treatments were layout in factorial experiment in RCBD Design with three replicates. The results showed that adding nano fertilizers by Spraying+ Soil Addition increase significantly plant length, number of leaves per plant, Stem diameter, Chlorophyll content (SPAD), fresh and dry weight of vegetative growth and roots. Also applying Complex Nano fertilizer increase significantly all the parameters(plant length, number of leaves per plant, Stem diameter, Chlorophyll content (SPAD), fresh and dry weight of vegetative growth and roots. compared with control and the increasing percentage were(62.12, 28.22,123.37, 19.19, 197.95, 154.48, 261.64, 114.26%)for the parameters respectively. The interaction treatments between nano fertilizers an applying methods show a significant effect for all the parameters.
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Fauziah, Fani, Restu Wulansari, and Erdiansyah Rezamela. "Pengaruh Pemberian Pupuk Mikro Zn dan Cu serta Pupuk Tanah terhadap Perkembangan Empoasca sp. pada Areal Tanaman Teh." Agrikultura 29, no. 1 (April 6, 2018): 26. http://dx.doi.org/10.24198/agrikultura.v29i1.16923.
Повний текст джерелаАнотація:
ABSTRACTThe effect of Zn and Cu micro-fertilizer and soil fertilizer on the development of Empoasca sp. in tea plantation areaFertilization has an important role for the entire process of metabolism and improves plant health. Tea plants are plants that require macro and micro nutrient inputs. The micro elements of Zn and Cu are needed for energy production, protein synthesis, formation of auxin hormones and increament of plant resistance to pest attack. This study aimed to determine the effect of Zn and Cu micro fertilizer and soil fertilizer on the development of Empoasca sp. The study was conducted from January to July 2017 at Gambung Experimental Station with an altitude of 1350 asl. The experiment was designed with Randomized Block Design (RBD) Factorial pattern with the following treatment arrangement: Factor A = 1) Without Micro Fertilizer, 2) Micro Fertilizer of Zn and Cu 200 g/ha/application, and 3) Zn and Cu 300 g/ha/application; Factor B = 1) Soil fertilizer of 100% recommended dosage, 2) Soil fertilizer of 75% recommended dosage, and 3) Soil fertilizer of 50% recommended dosage. All treatmnets were repeated three times. Application of micro fertilizers was carried out after six times of tea-leaf picking, while soil fertilizer was applied once at the beginning of the experiment. Observation parameters were population and attack intensity of Empoasca sp., as well as shoot production (kg/25 m2 plot size). The results showed that the application of fertilizers had an effect on the decrease of attack intensity and the population of Empoasca sp. in all treatments. Average attack intensity and population of Empoasca sp. at the end of the observation did not differ significantly of 31.64% and 2.55 Empoasca sp. per plant. Meanwhile, the highest total production of 36.56 kg/plot was obtained from the application of micro fertilizer Zn and Cu in the dosage of 200 g/ha/application at all doses of soil fertilizer, but there was no interaction between treatment factors.Keywords: Micro fertilizer, Soil fertilizer, Empoasca sp., Tea plantABSTRAKPemupukan memegang peranan penting untuk seluruh proses metabolisme dan meningkatkan kesehatan tanaman. Tanaman teh merupakan tanaman yang memerlukan input unsur hara makro dan mikro. Unsur mikro Zn dan Cu diperlukan tanaman untuk produksi energi, sintesis protein, pembentukan hormon auksin serta meningkatkan resistensi terhadap serangan organisme pangganggu tanaman. Penelitian ini bertujuan untuk mengetahui dampak pemberian pupuk mikro Zn dan Cu serta pupuk tanah terhadap perkembangan Empoasca sp. Penelitian dilaksanakan dari bulan Januari hingga Juli 2017 di Kebun Percobaan Gambung dengan ketinggian 1.350 mdpl. Percobaan dirancang dengan Rancangan Acak Kelompok (RAK) pola Faktorial dengan susunan perlakuan sebagai berikut: Faktor A = 1) Tanpa Pupuk mikro, 2) Pupuk mikro Zn dan Cu 200 g/ha/aplikasi, dan 3) Pupuk mikro Zn dan Cu 300 g/ha/aplikasi; Faktor B = 1) Pupuk tanah 100% dosis anjuran, 2) Pupuk tanah 75% dosis anjuran, dan 3) Pupuk tanah 50% dosis anjuran. Perlakuan diulang sebanyak tiga kali ulangan. Aplikasi pupuk mikro dilaksanakan setelah pemetikan sebanyak enam kali, sedangkan pemberian pupuk tanah dilakukan satu kali diawal percobaan. Parameter pengamatan yaitu populasi, intensitas serangan Empoasca sp., dan produksi pucuk (kg/plot 25 m2). Hasil penelitian menunjukkan bahwa pemberian pupuk berpengaruh terhadap penurunan intensitas serangan dan populasi Empoasca sp. pada seluruh perlakuan. Rata-rata intensitas serangan dan populasi Empoasca sp. pada akhir pengamatan tidak berbeda nyata sebesar 31,64% dan 2,55 ekor per tanaman. Sementara itu, total produksi tertinggi diperoleh dari aplikasi pupuk mikro Zn dan Cu dosis 200 g/ha/aplikasi pada semua dosis pupuk tanah yaitu sebesar 36,56 kg/plot, namun tidak terjadi interaksi antar faktor perlakuan.Kata Kunci: Pupuk mikro, Pupuk tanah, Empoasca sp., Tanaman teh
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Caldwell, Matthew, Kelly A. Nelson, and Manjula Nathan. "Co-Granulated and Blended Zinc Fertilizer Comparison for Corn and Soybean." Journal of Agricultural Science 8, no. 12 (November 6, 2016): 9. http://dx.doi.org/10.5539/jas.v8n12p9.
Повний текст джерелаАнотація:
A new co-granulated formulation of monoammonium phosphate (MAP) including S and Zn could allow for more uniform nutrient distribution. A six site-year study evaluated the effects of blended phosphorus (P) sources [MAP and diammonium phosphate (DAP)] and zinc amounts (0, 2.2, and 5.6 kg Zn ha-1) compared to co-granulated fertilizer, MicroEssentials® Sulfur-10 (MES10™) (12-40-0-10S) and MicroEssentials Sulfur and Zinc (MESZ™) (12-40-0-10S-1Zn), on corn and soybean response. Fertilizers were broadcast applied for corn and the carry-over effect on soybean was determined. Ear leaf P, S, and Zn concentrations at Novelty in 2013 and 2014 were within the sufficiency range regardless of treatment, even though initial soil test values were low-medium. Yields were similar to the N only control for all site-years except at Novelty in 2013, where MAP+ZnSO4 at 2.2 kg Zn ha-1, MAP+Super Zn at 5.5 kg Zn ha-1, and DAP+AMS were 540 to 570 kg/ha greater. The amount of Zn fertilizer (2.2 vs. 5.6 kg Zn ha-1) also showed no significant effect on yield. Applications of P or Zn generally increased their concentrations in post-harvest soil samples. Fertilizer applied for corn indicated some differences in soybean plant nutrient concentrations, but it had no effect on total plant nutrient uptake, grain yield or quality. At Novelty, soybean plant Zn concentration was greater at 5.6 kg Zn ha-1 compared to 2.2 kg Zn ha-1, while Albany showed an increase in whole soybean plant Zn concentration with SuperZn compared to ZnSO4. Carry-over fertilizer from corn showed limited effects on soybean response the following year.
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Dhaliwal, Salwinder Singh, Vivek Sharma, Arvind Kumar Shukla, Vibha Verma, Sanjib Kumar Behera, Prabhjot Singh, Saqer S. Alotaibi, Ahmed Gaber, and Akbar Hossain. "Comparative Efficiency of Mineral, Chelated and Nano Forms of Zinc and Iron for Improvement of Zinc and Iron in Chickpea (Cicer arietinum L.) through Biofortification." Agronomy 11, no. 12 (November 29, 2021): 2436. http://dx.doi.org/10.3390/agronomy11122436.
Повний текст джерелаАнотація:
Nanoparticles (NPs), due to their tailored properties, serve as potential sources of nutrients for the biofortification of edible grains. Chickpeas are a valued legume crop, widely consumed in developing countries. Thus, to improve the Zn and Fe content in chickpeas, a two-year study was conducted to examine the potential of the foliar application of mineral (0.5% Zn and Fe), chelated (0.3% Zn and Fe) and nanoforms (0.5% ZFN) of fertilizers to enhance Zn and Fe content in chickpea. The foliar application of 0.5% ZnO NPs + 0.5% Fe2O3 NPs (ZFN) at the pre-flowering stage showed the highest potential to increase grain yield, Zn and Fe content and their uptake as a single foliar application of nano-fertilizers showed comparable results to two foliar applications of mineral and chelated forms. The grain and straw yield (14.07 and 33.04 q ha−1, respectively) under ZFN treatment was significantly higher over the control (9.20 and 27.49 q ha−1, respectively). A similar trend was observed for Zn and Fe content in grain (42.29 and 86.51 mg kg−1, respectively). For nutrient uptake, ZFN treatment showed the highest uptake of Zn and Fe in grain (604.49 and 1226.22 g ha−1, respectively) and straw (729.55 and 9184.67 g ha−1, respectively). Thus, nano-fertilizers, due to their altered structural properties, demonstrated higher translocation over the mineral and chelated forms of nutrient fertilizers and thus improved yield and nutrient content to a greater extent. Thus, the foliar application of 0.5% ZnO NPs + 0.5% Fe2O3 NPs may prove to be a feasible option for the enrichment of chickpeas with Zn and Fe to ameliorate malnutrition in burgeoning human populations.
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Cenciani de Souza, Camila Prado, Cleide Aparecida de Abreu, Aline Renée Coscione, Cristiano Alberto de Andrade, Luiz Antonio Junqueira Teixeira, and Flavia Consolini. "A Statistical Review of Alternative Zinc and Copper Extraction from Mineral Fertilizers and Industrial By-Products." Journal of AOAC INTERNATIONAL 101, no. 1 (January 1, 2018): 190–95. http://dx.doi.org/10.5740/jaoacint.15-0327.
Повний текст джерелаАнотація:
Abstract Rapid, accurate, and low-cost alternative analytical methods for micronutrient quantification in fertilizers are fundamental in QC. The purpose of this study was to evaluate whether zinc (Zn) and copper (Cu) content in mineral fertilizers and industrial by-products determined by the alternative methods USEPA 3051a, 10% HCl, and 10% H2SO4 are statistically equivalent to the standard method, consisting of hot-plate digestion using concentrated HCl. The commercially marketed Zn and Cu sources in Brazil consisted of oxides, carbonate, and sulfate fertilizers and by-products consisting of galvanizing ash, galvanizing sludge, brass ash, and brass or scrap slag. The contents of sources ranged from 15 to 82% and 10 to 45%, respectively, for Zn and Cu. The Zn and Cu contents refer to the variation of the elements found in the different sources evaluated with the concentrated HCl method as shown in Table 1. A protocol based on the following criteria was used for the statistical analysis assessment of the methods: F-test modified by Graybill, t-test for the mean error, and linear correlation coefficient analysis. In terms of equivalents, 10% HCl extraction was equivalent to the standard method for Zn, and the results of the USEPA 3051a and 10% HCl methods indicated that these methods were equivalents for Cu. Therefore, these methods can be considered viable alternatives to the standard method of determination for Cu and Zn in mineral fertilizers and industrial by-products in future research for their complete validation.
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Pankaj, Neelam, Kiran Bharti, and Gurdeep Bains. "Elucidating the effect of super oxide dismutase and photosynthetic rate of rice crop variety Pant Dhan 4." International Journal of Agricultural and Applied Sciences 1, no. 1 (June 30, 2020): 42–45. http://dx.doi.org/10.52804/ijaas2020.119.
Повний текст джерелаАнотація:
A field experiment was carried out during Kharif season of 2010 and 2011 to study the effect of different nutrients treatments on the productivity of rice. Application of NPK with FYM and Zn proved to be superior in recording the highest Photosynthetic rate and Super Oxide Dismutase. Although fertilizers are important for enhancing rice production but excess use of fertilizer cause deterioration of soil quality which ultimately affect crop productivity so it is required to investigate the physiological aspects of rice plant under integrated nutrients. When imbalanced fertilizers doses are given to the rice-wheat cropping system, they showed a considerable decline in crop productivity and soil fertility.
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Sun, Lijuan, Shuangxi Li, Peiyun Gong, Ke Song, Hong Zhang, Yafei Sun, Qin Qin, Bin Zhou, and Yong Xue. "Stabilization of Zinc in Agricultural Soil Originated from Commercial Organic Fertilizer by Natural Zeolite." International Journal of Environmental Research and Public Health 19, no. 3 (January 22, 2022): 1210. http://dx.doi.org/10.3390/ijerph19031210.
Повний текст джерелаАнотація:
Exploring ways to reduce the risk of heavy metal pollution by organic fertilizer application is of vital importance. In the present study, by conducting a pot experiment, natural zeolite was applied together with pig manure based organic fertilizer to agricultural soil in order to test its possibility of reducing the risk of heavy metals originating from pig manure. The results showed that a low rate of organic fertilizer (10%) application increased the biomass of Chinese cabbage (by 57.2%), while a high rate of organic fertilizer (30%) decreased the biomass of Chinese cabbage (by 46.16%), and meanwhile a 3% zeolite addition increased the biomass of Chinese cabbage which was treated with 30% organic fertilizer. The organic fertilizer addition decreased soil pH and increased soil CEC, while zeolite addition increased soil pH and decreased the soil organic matter content. The concentration of Zn in Chinese cabbage shoots increased with the organic fertilizer addition from 4.46% to 48.27%, while the addition of 1% and 3% zeolite significantly decreased Zn in Chinese cabbage shoots by 15.53% and 14.08%, respectively. The concentration of DPTA-extractable and DGT-extractable Zn of soil was increased by organic fertilizer application, whereas zeolite addition decreased the concentration of DPTA-extractable and DGT-extractable Zn in soil treated with organic fertilizer. Our present study suggests that natural zeolite application could be a promising method to reduce the risk of heavy metals originating from organic fertilizers.
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Smagula, J. M., W. Litten, and S. Dunham. "310 Lowbush Blueberry Response to Soil- or Foliar-applied Zinc Fertilizers." HortScience 34, no. 3 (June 1999): 496B—496. http://dx.doi.org/10.21273/hortsci.34.3.496b.
Повний текст джерелаАнотація:
Lowbush blueberries (Vaccinium angustifolium Ait.) in two commercial fields were treated with a preemergent soil application of ZnSO4 at 0.34 g Zn/m2 or a prune-year or crop-year foliar application of Zintrac (1.76 g Zn/L) in a RCB design with five treatments and nine blocks, using 1.5 x 15-m treatment plots. Prune-year foliar Zintrac treatments were applied 20 June and 30 June at 53.8 mL·m-2 or 20 June at 107.6 mL·m-2. A crop-year application of Zintrac at 53.8 mL·m-2 was made on 26 June at only one location. Composite leaf tissue samples taken 14 July of the prune year indicated that two applications of Zintrac at 53.8 mL·m-2 raised Zn concentrations at both locations more than a single application at twice the rate. Soil application of ZnSO4 did not raise leaf Zn concentrations compared to the control at either location. Crop-year leaf samples taken 6 July at the site that received the crop-year foliar treatment indicated no carryover effect of prune-year Zn treatments on leaf Zn concentration, but crop-year foliar application of Zn from Zintrac did raise leaf Zn concentrations compared to the controls. The characteristics of stems sampled in the fall of the prune year at each location (stem density, stem length, flower bud formation) were not meaningfully affected by any of the prune-year treatments. Blueberry yield was not affected by any of the treatments at either location. These data suggest that control plot leaf Zn concentrations of about 15 ppm in both fields were adequate. Raising the leaf Zn concentrations to about 80 ppm with two applications of Zintrac at 53.8 mL·m -2 had no effect on growth or yield.
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Mota, Mauro F. C., Rodinei F. Pegoraro, Silvânio R. dos Santos, Victor M. Maia, Regynaldo A. Sampaio, and Marcos K. Kondo. "Contamination of soil and pineapple fruits under fertilization with sewage sludge." Revista Brasileira de Engenharia Agrícola e Ambiental 22, no. 5 (May 2018): 320–25. http://dx.doi.org/10.1590/1807-1929/agriambi.v22n5p320-325.
Повний текст джерелаАнотація:
ABSTRACT Sewage sludge is rich in organic matter and nutrients for the plants, and can be used in pineapple production, but there are few studies with scientific evaluation of possible inorganic and biological contaminants in pineapple plantations. In view of the above, this study aimed to evaluate the contamination of the soil and in fruits of pineapple fertilized with sewage sludge. The study was conducted in the municipality of Janaúba-MG. Treatments were arranged in a randomized block design, with four replicates, in a 2 x 5 factorial scheme, consisting of two different fertilizers: sewage sludge (SS) and mineral fertilizers (MF), and five pineapple varieties (Pérola, Vitória, Smooth Cayenne, MD-2, Fantastic IAC). Nitrogen was adopted as the base element to calculate the sewage sludge dose in the pineapple crop. Fertilization with sewage sludge increased the Zn and Cu contents in the soil and the Zn content in the leaves of the pineapple plants. Sewage sludge did not change the contents of As, Pb, Ba, Cu and Zn in the fruit, and Cr, Ni and Cd contents were not detected by the method used. Pineapple fruits did not show microbiological contamination above the limits established by the Brazilian legislation.
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Gur, Lior, Yigal Cohen, Omer Frenkel, Ron Schweitzer, Meir Shlisel, and Moshe Reuveni. "Mixtures of Macro and Micronutrients Control Grape Powdery Mildew and Alter Berry Metabolites." Plants 11, no. 7 (April 4, 2022): 978. http://dx.doi.org/10.3390/plants11070978.
Повний текст джерелаАнотація:
Powdery mildew caused by the fungus Erysiphe necator is a major grape disease worldwide. It attacks foliage and berries and reduces yield and wine quality. Fungicides are mainly used for combating the disease. Fungicide resistance and the global requisite to reduce pesticide deployment encourage the use of environment-friendly alternatives for disease management. Our field experiments showed that the foliar application of the potassium phosphate fertilizer Top-KP+ (1-50-33 NPK) reduced disease incidence on leaves and clusters by 15–65% and severity by 75–90%, compared to untreated vines. Top-KP+ mixed with Nanovatz (containing the micronutrients boron (B) and zinc (Zn)) or with TruPhos Platinum (a mixture containing N, P2O5, K2O, Zn, B, Mg, Fe, Mn, Cu, Mo, and CO) further reduced disease incidence by 30–90% and disease severity by 85–95%. These fertilizers were as effective as the fungicide tebuconazole. Tank mixtures of fertilizers and tebuconazole further enhanced control efficacy in the vineyards. The modes of action of fertilizers in disease control were elucidated via tests with grape seedlings, microscopy, and berry metabolomics. Fertilizers applied preventively to the foliage of grape seedlings inhibited powdery mildew development. Application onto existing mildew colonies plasmolyzed mycelia and conidia and arrested the development of the disease. Berries treated with fertilizers or with a fungicide showed a significant increase in anti-fungal and antioxidant metabolites. Twenty-two metabolites, including non-protein amino acids and carbohydrates, known for their anti-fungal and bioactive effects, were significantly upregulated in grapes treated with fertilizers as compared to grapes treated with a fungicide, suggesting possible indirect activity against the pathogen. Esters and organic acids that contribute to wine quality were also upregulated. We conclude that integrating macro and micronutrients in spray programs in commercial vineyards shall control powdery mildew, reduce fungicide deployment, delay the buildup of fungicide resistance, and may improve wine quality.
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Rahimi, Amir, Reza Amirnia, Sina Siavash Moghaddam, Hesham Ali El Enshasy, Siti Zulaiha Hanapi, and R. Z. Sayyed. "Effect of Different Biological and Organic Fertilizer Sources on the Quantitative and Qualitative Traits of Cephalaria syriaca." Horticulturae 7, no. 10 (October 13, 2021): 397. http://dx.doi.org/10.3390/horticulturae7100397.
Повний текст джерелаАнотація:
Due to the potential to enhance soil productivity and plant growth, biological fertilizers have recently been considered an alternative source for soil, water, and crop-contaminating chemical fertilizers in sustainable agriculture. The importance of different fertilizer sources on quantitative and qualitative traits of Syrian cephalaria (Cephalaria syriaca L.) was explored in an experiment based on a randomized complete block design during the 2015–2016 growing season. The maximum grain yield (9.97 g/plant) and biological yield (24.57 g/plant) were obtained from the application of Azotobacter + chemical fertilizer treatment, but the maximum oil percentage (25.23%) and oil yield (2.41 g/plant) were observed in the plants treated with Azotobacter + vermicompost. The plants treated with Azotobacter + chemical fertilizer exhibited the highest 1000 seed weight (15.03 g). Application of Azotobacter + vermicompost increased chlorophylls a, b, and total by 2.06, 1.96, and 4.02% versus Azotobacter treatment alone, respectively. The treatment of Azotobacter + manure increased total phenol, flavonoids, and DPPH antioxidant activity by 27.89, 0.56, and 53.16% versus the treatment of Azotobacter + chemical fertilizer. The integrated application of different fertilizer sources had an optimal effect on the uptake of trace elements (Cu, Fe, and Zn) so that the treatment of Azotobacter + vermicompost increased their concentrations. Due to the positive effect of integrated application of different fertilizer sources on improving the studied traits of Cephalaria, it is recommended to replace chemical fertilizers with combined fertilizers including organic and biological inputs to enhance the efficiency of crops, reduce environmental pollution, and move towards sustainable agriculture.
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RAHBARI, Ali, Jafar MASOUD SINAKI, Ali DAMAVANDI, and Shahram REZVAN. "Castor bean (Ricinus communis L.) responses to drought stress and foliar application of Zn-nano fertilizer and humic acid: grain yield, oil content, antioxidant activity, and photosynthetic pigments." Notulae Botanicae Horti Agrobotanici Cluj-Napoca 49, no. 4 (November 2, 2021): 12003. http://dx.doi.org/10.15835/nbha49412003.
Повний текст джерелаАнотація:
Castor bean is considered as an important non-edible oilseed crop and source of castor oil, which has many applications ranging from cosmetics to the biofuels industry. Humic acid (HA) results from organic matter decomposition and is beneficial to plant growth and development. In the present study, a two-year experiment was conducted in Damghan, Iran, to study the physiological responses of castor bean to foliar application of zinc nano-chelate (Zn-nano) and HA under drought stress. The drought stress was used as the main treatment in three levels: normal irrigation as control, irrigation up to 75 BBCH scale (Biologische Bundesantalt, Bundessortenamt und Chemische Industrie) (mild stress), and irrigation up to 65 BBCH (severe stress). Foliar application of HA in three levels (non-application, application of the recommended rate and two times more than the recommended rate), as well as Zn-nano fertilizer in two levels (application at 1.5 part per thousand (ppt) and non-application) as subplots. The drought stress, HA, and Zn-nano fertilizer could significantly affect the number of capsules, the number of seeds, 100-seed weight, seed yield, oil yield, protein percentage and yield, activities of catalase (CAT), superoxide dismutase (SOD), and peroxidase (POD), and chlorophyll a (Chl a), chlorophyll b (Chl b), and total chlorophyll (total Chl) contents. In addition, severe drought stress resulted in reducing the number of capsules (33.9%), the number of seeds (32.7%), 100-grain weight (16.0%), as well as seed (43.0%), oil (59.3%), and protein (29.9%) yield. Based on the results, the highest yield components, oil and protein contents, and photosynthetic pigments were achieved in the foliar application of HA (recommended rate) and Zn-nano fertilizers under normal irrigation during the second year. Further, the foliar application of Zn-nano fertilizer led to a decrease in the activities of CAT, SOD, and POD enzymes. According to partial regression analysis, the recommended rate of HA application the changed the nature of relationships governing the characteristics, especially under drought stress conditions. Finally, the foliar application of HA (recommended rate) and Zn-nano fertilizers could create an excellent resistance to drought stress in castor under dry and semi-arid climate conditions by improving yield and yield components and physiological traits.
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Rahimi, Amir, Sina Siavash Moghaddam, Mahdi Ghiyasi, Saeid Heydarzadeh, Kosar Ghazizadeh, and Jelena Popović-Djordjević. "The Influence of Chemical, Organic and Biological Fertilizers on Agrobiological and Antioxidant Properties of Syrian Cephalaria (Cephalaria Syriaca L.)." Agriculture 9, no. 6 (June 10, 2019): 122. http://dx.doi.org/10.3390/agriculture9060122.
Повний текст джерелаАнотація:
Since chemical fertilizers pollute soil, water and crops, conscientious agricultural producers seek alternatives to chemical fertilizers. Biological fertilizers are considered a reliable alternative for improving soil productivity and plant growth in sustainable agriculture. The response of some agrobiological and antioxidant properties of Syrian cephalaria (Cephalaria syriaca L.) to different fertilizer sources was explored in an experiment which included: (i) mycorrhiza + manure; (ii) mycorrhiza + vermicompost; (iii) mycorrhiza + Azotobacter; (iv) mycorrhiza + chemical fertilizer; (v) mycorrhiza; and (vi) control. The results showed that the highest seed yield, biological yield, oil percentage yield, were observed in plants treated with mycorrhiza + vermicompost, whereas the highest 1000-seed weight was obtained from the application of mycorrhiza + manure. With respect to photosynthesizing pigments, the application of mycorrhiza + vermicompost increased chlorophyll a, chlorophyll b, total chlorophyll, carotenoid content as well as total phenols, total flavonoids and DPPH antioxidant activity as compared to control (unfertilized) plants. The mixed application of different fertilizer sources influenced the uptake of trace elements (Fe, Zn and Cu) optimally. In the light of the obtained results for the agrobiological and antioxidant properties of Syrian cephalaria, in most of the measured traits, there is no significant difference between manure, vermicompost and chemical fertilizers in combination with mycorrhiza. Hence the use of organic and biological inputs instead of chemical fertilizer for improving crop efficiency and quality with the aim of alleviating pollution and accomplishing sustainable agriculture is highly encouraging.
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Annisa, Wachida Ayu, Setyo Budi Santoso, and Wanti Midarti. "Dampak pemberian Pupuk Organik Cair Kotoran Ternak terhadap Ketersediaan P dan Zn dan Serapannya oleh Tanaman Tomat (Solanum Lycopersicon L.)." Folium : Jurnal Ilmu Pertanian 6, no. 2 (August 16, 2022): 58. http://dx.doi.org/10.33474/folium.v6i2.15698.
Повний текст джерелаАнотація:
The use of liquid organic fertilizer made from livestock manure is an attempt to provide tomato plants with P and Zn nutrients. This research aimed to assess the availability of P and Zn, the best growth, and yield of tomato plants using liquid organic fertilizer based on animal manure. A completely randomized design with a two-factor treatment was used to set up this study. The first aspect is the three different kinds of organic livestock-based fertilizers—chicken, goat, and cow dung. The second factor is the three different fertilizer concentrations, which are 5 ml/g (1), 10 ml/g (2), and 15 ml/g (3). A control was added as a point of comparison, and each treatment was performed three times overall for a total of 30 experimental units. After 7 days have elapsed after planting, liquid organic fertilizer is applied. The following parameters were measured: plant height, number of fruits, fruit weight, fruit sugar content, soil pH, soil accessible P, and total soil Zn. According to the findings, goat dung liquid fertilizer at a rate of 15 ml/g produced the greatest yield on tomato plant height. The treatment of 10 ml/g liquid organic fertilizer goat dung resulted in the highest Zn absorption in soil and tomato plants. The highest increase was seen with the 10 ml/g application of liquid organic fertilizer made from cow manure. In plant root P uptake (0.17 ppm).
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Demirbas, Ahmet, Hasan Durukan, Tolga Karakoy, Hesna Pamiralan, Mustafa Gok, and Ali Coskan. "Yield and Nutrient Uptake Improvement of Chickpea (Cicer Arietinum L.) by Dressing Fertilization and Nitrogen Doses." “Agriculture for Life, Life for Agriculture” Conference Proceedings 1, no. 1 (July 1, 2018): 51–57. http://dx.doi.org/10.2478/alife-2018-0008.
Повний текст джерелаАнотація:
Abstract The present investigation aimed to understand the effects of dressing fertilizers and different nitrogen (N) doses on yield and nutrient uptake of chickpea (Cicer arietinum L.) plant. The study has been carried out with three repetitions under the greenhouse conditions. Nitrogen doses were; 0 kg N ha-1, 30 kg N ha-1, 60 kg N ha-1, 90 kg N ha-1 and 120 kg N ha-1 (in CaNO3.4H2O form) and dressing fertilizers were applied as 40 kg N ha-1. The results indicated that the dressing fertilizer application significantly increased average shoot dry weight with 8.18 g poƒ-1. Also, N (2.88 % N), P (0.40 % P), K (3.90 % K) and Fe (114.2 mg kg-1) concentrations increased with dressing fertilizer application of chickpea plant as compared to without dressing fertilizer application. However, dressing fertilizer application did not affect Mg, Zn, Mn and Cu concentrations of chickpea plant. Generally, in this study dressing fertilizer application increased yield and some macro and microelements concentrations of chickpea plant.
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Getso, M. M., M. S. Sallau, S. E. Abechi, and S. Uba. "Effect of organic fertilizer on nutritional status of Hibiscus sabdariffa at a vegetative stage of growth." Bayero Journal of Pure and Applied Sciences 11, no. 1 (October 11, 2018): 131–37. http://dx.doi.org/10.4314/bajopas.v11i1.23.
Повний текст джерелаАнотація:
Field experiment was conducted at Research Farm of Kano University of Science and Technology, Wudil, to determine the effects of organic fertilizer on the nutritional status of Hibiscus sabdariffa (Roselle). The results obtained indicated the manure fertilizer to be higher in protein (20.910%) and crude fiber contents (12.047%), Zn (30.689mg/kg) and Cu (18.571mg/kg) concentrations, no Pb was detected at all. However, the difference that exists amongst the fertilizers (T2 and T3) and poultry manure (T1) was found to be insignificant in so many parameters. Therefore, the study work with regard to the findings revealed that organic fertilizer (poultry manure) had the potential over the inorganic fertilizers for the dietary nutrients yielding in vegetables Hibiscus sabdariffa. However, the information will economically favor our local farmers and users to adapt the cheapest poultry manure for the optimum yield of qualitative produce vegetable as prospective against malnutrition in Nigeria especially North East where endemically affected by war.Keywords: Roselle leaves, vegetative stage, proximate analysis, elements, Kano
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Yoder, Natalie, and Jessica G. Davis. "Organic Fertilizer Comparison on Growth and Nutrient Content of Three Kale Cultivars." HortTechnology 30, no. 2 (April 2020): 176–84. http://dx.doi.org/10.21273/horttech04483-19.
Повний текст джерелаАнотація:
Selecting supplemental nitrogen (N) fertilizer for use on certified organic farms can be difficult and confusing. There are many options commercially available to farmers with similar N concentrations but widely different ingredients. Experiments were conducted in a certified organic field and high tunnels near Fort Collins, CO in 2013 and 2014 to evaluate the impact of organic fertilizers on yield and nutrient concentrations of three kale (Brassica oleracea and Brassica napus) cultivars. This study includes an organic fertilizer (cyano-fertilizer), which is produced on-farm by growing N-fixing cyanobacteria (Anabaena cylindrica) in raceway ponds. The three fertilizer treatments were hydrolyzed fish emulsion, alfalfa (Medicago sativa) meal, and cyano-fertilizer. These were applied at rates calculated by subtracting soil nitrate concentration from a target 50 mg·kg−1 to the depth of 6 inches of soil. Cyano-fertilizer and hydrolyzed fish emulsion were applied in liquid form, while the alfalfa meal was incorporated dry into the soil before planting. Biweekly measurements of plant height were taken on three cultivars of kale: Dinosaur, Red Russian, and Winterbor. Leaf weight, leaf area, and N, iron (Fe), and zinc (Zn) concentrations were measured during three to four monthly harvests each year. Organized in a split-plot experimental design, there were three treatment replications with subplots of different kale cultivars. Fertilizer treatment did not significantly affect plant height, leaf weight, leaf area, or plant N, Fe, and Zn concentrations. However, there were cultivar differences in plant height, leaf area, and yield. Kale cultivar choice had a larger impact on yield and plant nutrient concentrations than fertilizer choice, because fertilizers were applied at similar N rates.