Journal articles on the topic 'Humic-mineral fertilizers'
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1
Shevchenko, Tatyana, Julia Ustinova, Anatoly Popov, and Anton Renzyaev. "Briquette organo-mineral fertilizer based on humic acids." E3S Web of Conferences 175 (2020): 07010. http://dx.doi.org/10.1051/e3sconf/202017507010.
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The results of research on the creation and use of briquette fertilizers with a high content of humic acids, substances of natural origin, which are naturally compatible multifunctional polyampholites, are presented. In briquette fertilizers, the microbiological binder “Biogum” is used as a binder, which is an organo-mineral fertilizer containing various components. Two variants of briquette fertilizers have been developed: tableted and rod fertilizers, which are necessary for successful cultivation of plants, shrubs, and trees.
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Bogomazov, S. V., A. A. Levin, E. V. Efremova, O. A. Tkachuk, and A. V. Lyandenburskaya. "Efficiency of humic and mineral fertilizers in the technology of spring wheat cultivation." IOP Conference Series: Earth and Environmental Science 953, no. 1 (January 1, 2022): 012026. http://dx.doi.org/10.1088/1755-1315/953/1/012026.
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Abstract The article presents the results of studies on the effect of humic fertilizer Gumostim and mineral fertilizers on the formation of productivity of spring soft wheat varieties Tulaykovskaya 108. The work performed allows us to expand our understanding of the effect of humic acid salts in humic fertilizers on the development of spring wheat and give recommendations on methods for their use in order to increase the yield and quality of household products, preserving the ecological cleanliness of the environment. The research objective is to improve the elements of spring wheat cultivation technology under the conditions of the forest steppe of the Middle Volga region, which allow to optimize the conditions of growth and development through the integrated use of humic and mineral fertilizers. Studies have found that the use of humic fertilizer Gumostim increases field germination of spring wheat seeds by 0.8-1.2%, the net productivity of photosynthesis to 5.16 g/m2 × day, ear grain content by 13%, grain weight per plant by 15%, yield by 0.55 t/ha. Mineral fertilizers increase the net productivity of photosynthesis to 5.30 g/m2 × day, ear grain content by 36%, spring wheat yield by 1.01 t/ha. The combined use of Gumostim and mineral fertilizers increases the net productivity of photosynthesis to 5.47 g/m2 × day, ear grain content by 83%, grain weight per plant by 45.8%, spring wheat yield by 1.55 t/ha.
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Dzendzel, А. Yu, Yu D. Martsinyshyn, and S. V. Pyda. "ЕФЕКТИВНІСТЬ ВИКОРИСТАННЯ ОРГАНО-МІНЕРАЛЬНИХ ДОБРИВ ПРИ ВИРОЩУВАННІ ПОМІДОРА ЇСТІВНОГО (LYCOPERSICON ESCULENTUM MILL.)." Scientific Issue Ternopil Volodymyr Hnatiuk National Pedagogical University. Series: Biology 80, no. 3-4 (December 1, 2020): 115–26. http://dx.doi.org/10.25128/2078-2357.20.3-4.15.
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The review analyzes the effect of organic-mineral fertilizers (OMF) on morphogenesis, physiological processes, productivity and fruit quality of edible tomato (Lycopersicon esculentum Mill.). Tomatoes are known to play a primary role in providing the population with quality vegetable products, due to a large number of sugars (2.5–4.2 %), organic acids (0.4–0.9 %), vitamins, lycopene (0.3 %), fiber (0.3–0.9 %), mineral and aromatic compounds. The annual rate of human consumption of tomatoes, according to scientists, should be 39 kg.
It is noted that the use of OMF and humic preparations is an integral part of organic farming. According to DSTU ISO 4884: 2007 organic-mineral fertilizer is a fertilizer obtained by physical and / or chemical interaction of organic and mineral components.
Growing tomatoes using organic technology reduces the size of the fruit, but makes tomatoes more tasteful compared to fruits grown in the traditional way, the accumulation in the fruit of useful iron, magnesium, vitamins and minerals. It is shown that humic compounds have a positive effect on all phases of the mitotic cycle of cells and increase the value of the mitotic index by 1.5 times, resulting in increased root formation, changes of cell membranes increase water supply and nutrients. Treatment of seeds before sowing with liquid complex nitrohumine fertilizer containing macro- and microelements increases germination by 10%. Feeding tomato plants with liquid OMF during the growing season allows to intensify the process of photosynthesis, ensure better development of the leaf surface and root system, increase the laying of more reproductive organs and reduce disease incidence, resulting in a 40 % increase in yield and improved quality. The stimulating effect of humic acids on rooting of tomato seedlings, growth processes, increase of resistance to temperature decrease is revealed.
Growth stimulants and liquid nitrogen fertilizers also streamline growth, increase productivity and quality of tomatoes.
Thus, the use of organic-mineral fertilizers based on humic substances affects the development of edible tomatoes, streamlines the physiological processes in plants, their resistance to abiotic and biotic factors, fruit yield by 26–51 % and their quality, morpho-biometric and biochemical parameters of seedlings.
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Korsakov, Konstantin Vyacheslavovich, Dmitry Sergeevich Semin, Alexander Nikolaevich Astashov, and Viktor Vasilievich Pronko. "The value of mineral fertilizers and products based on humic acids in the yield increasing of forage crops on the soils of the arid Volga region (analytical review)." Agrarian Scientific Journal, no. 3 (March 28, 2022): 19–22. http://dx.doi.org/10.28983/asj.y2022i3pp19-22.
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There were considered the results of experiments with fertilizers, which were carried out with scientific fertilizers on the chernozem chestnut soils of the arid Volga region. The objects of research were grain fodder crops (spring barley, oats, grain sorghum, grain corn), as well as those used for green fodder (sugar sorghum, corn). It has been established that among mineral fertilizers, the leading role in yield increasing of forage crops belongs to nitrogen fertilizers but not phosphorus ones (as previously believed). The use of fertilizers based on humic acids had a positive effect on the growth, development and yield increase of forage crops. The maximum productivity in the experiments was achieved with the combined use of mineral nitrogen fertilizers and humic based products. The effect of all studied types of fertilizers depended on the weather conditions of the growing season.
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Korsakov, Konstantin Vyacheslavovich, Dmitry Sergeevich Semin, Alexander Nikolaevich Astashov, and Viktor Vasilievich Pronko. "The value of mineral fertilizers and products based on humic acids in the yield increasing of forage crops on the soils of the arid Volga region (analytical review)." Agrarian Scientific Journal, no. 3 (March 28, 2022): 19–22. http://dx.doi.org/10.28983/asj.y2022i3pp19-22.
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There were considered the results of experiments with fertilizers, which were carried out with scientific fertilizers on the chernozem chestnut soils of the arid Volga region. The objects of research were grain fodder crops (spring barley, oats, grain sorghum, grain corn), as well as those used for green fodder (sugar sorghum, corn). It has been established that among mineral fertilizers, the leading role in yield increasing of forage crops belongs to nitrogen fertilizers but not phosphorus ones (as previously believed). The use of fertilizers based on humic acids had a positive effect on the growth, development and yield increase of forage crops. The maximum productivity in the experiments was achieved with the combined use of mineral nitrogen fertilizers and humic based products. The effect of all studied types of fertilizers depended on the weather conditions of the growing season.
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Kodochilova, N. A., T. S. Buzynina, L. D. Varlamova, and E. A. Katerova. "Effect of systematic application of mineral fertilizers and long-term aftereffect of liming on the organic matter of light-grey forest soil." Agricultural Science Euro-North-East 21, no. 2 (April 22, 2020): 160–68. http://dx.doi.org/10.30766/2072-9081.2020.21.2.160-168.
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The studies on assessment of changes in the content and composition of soil organic matter under the influence of the systematic use of mineral fertilizers (NPK)1, (NPK)2, (NPK)3 against the background of the aftereffect of single liming in doses of 1.0 and 2.0 h. a. (control – variants without fertilizers and lime) were conducted in the conditions of the Nizhny Novgorod region in a long – term stationary experiment on light-grey forest soil. The research was carried out upon comple-tion of the fifth rotation of the eight-field crop rotation. The results of the study showed that for 40 years (from 1978 to 2018) the humus content in the soil (0-20 cm) decreased by 0.19-0.52 abs. % in variants as compared to the original (1.60 %); though, humus mineralization was less evident against the background of long-term use of mineral fertilizers compared to non-fertilized control. The higher humus content in the topsoil was noted in the variants with minimal (NPK)1 and increased (NPK)2 doses of fertilizer – 1.41 and 1.25 %, respectively. The humus content in non-fertilized soil and when applying high (NPK)3 doses of mineral fertilizers was almost identical – 1.08-1.09 %. The predominant group in the composition of humus were humic acids, the content of which in the experiment on average was 37.8 % of the total carbon with an evident decrease from 42.6 % in the control to 31.8% when applying increased doses of mineral fertilizers. The aftereffect of liming, carried out in 1978, was unstable and did not significantly affect the content and composition of soil organic matter.
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Kornienko, Yaroslav, Vasyl Raida, Roman Sachok, and Oleksiy Tsepkalo. "Mathematical Modelling of Continuous Formation of Multilayer Humic-Mineral Solid Components." Chemistry & Chemical Technology 3, no. 4 (December 15, 2009): 335–38. http://dx.doi.org/10.23939/chcht03.04.335.
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A mathematical model of continuous granulation process of solid multilayer humic-mineral composites in the fluidized bed unit intended for liquid industrial wastes utilization with obtaining of complex granular fertilizers for environmentally safe agriculture was developed and the stabilization terms of the dispersion composition were defined.
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Belanov, I. P., N. B. Naumova, I. S. Semina, and O. A. Savenkov. "METALLURGICAL PRODUCTION SLAGS – PROMISING MATERIAL FOR TECHNOLOGICAL WASTE RECLAMATION." Izvestiya Visshikh Uchebnykh Zavedenii. Chernaya Metallurgiya = Izvestiya. Ferrous Metallurgy 61, no. 12 (January 16, 2019): 987–92. http://dx.doi.org/10.17073/0368-0797-2018-12-987-992.
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The article describes results of the microplot field trial to investigate potential use of metallurgical slags for fracture of capillary rim during reclamation of toxic waste dumping areas, such as enrichment plants tailings, solid waste dumps, etc., with minimal possible introduction of fertile soil layer. Such approach allows energy-effective utilization of metallurgical wastes. Four slags, produced at EVRAZ West Siberian plant by different technologies were used: white nonferrous, blast-furnace, converter and electric furnace slags. These slags were used as an inert material, underlying thin fertile soil layer in experimental microplots, where perennial plants (legume-grass mixture) were sawn. For each slag there was check variant (no fertilizer added), and variants with potassium humic agents, and their combination as mineral fertilizers. Aboveground phytomass at the end of the grow ing season varied from 17 to128 g/m2. Converter and blast furnace slags, which had the least phytotoxicity, appeared to be better inert materials. Mineral fertilizer, introduced itself and combined with humic agents, has increased aboveground phytomass 2 – 4 times as compared with check variant. Used separately, humic agent did not affect plant production, whereas used together with mineral fertilizer, it increased phytomass 1.6 – 1.8 times. Thus combined introduction of mineral fertilizer and humic agents is recommended to stimulate germination abilit y and phytomass production. Converter and blast furnace slags can be used as inert materials for reclamation with minimal fertile soil layer application, whereas white non-ferrous and electric furnace slags are not recommended for such application due to their high phytotoxicity, negatively affecting growth and development of perennial plants, used for reclamation.
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Malynovska, I. M., and N. A. Tkachenko. "Intensity of microbiological processes in gray forest soils under the liming and plowing of crop by-products." Ecology and Noospherology 30, no. 1 (November 18, 2018): 19–23. http://dx.doi.org/10.15421/031903.
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Established that liming with single dose by hydrolytic acidity (1,0 Hg) slows down the processes of organic matter mineralization in gray forest soil: without mineral fertilizers – in 2,1 times, with mineral fertilizers – in 4,1, with plowing of the seed crop biomass and the by-products of the predecessor – in 1,4 times. The mineralization of nitrogen compounds as a result of liming also proceeds slower: without mineral fertilizers – in 1,2 times, with mineral fertilizers – in 2,2 times. Confirmed patterns that were obtained in previous years of research about the impact of liming on the activity of humus mineralization – it decreases as a result of liming with full dose (1,0 Hg) without mineral fertilizers by 66,7 %, with mineral fertilizers – by 4,4 %. The total biological activity in the soil without a mineral fertilizer increases as a result of liming by 23,0 %, with mineral fertilizers – by 42,5, at the background of exogenous organic matter (EOM) plowing – by 83,7 %. Liming allows to reduce the level of phytotoxicity of soil without mineral fertilization by 17,9 %, %, with mineral fertilizers at the background of EOM – by 12,2 %. Positive influence of liming is amplified in variants with introduction of organic matter into the soil (byproducts of predecessor and siderate). Plowing of siderate crop biomass and by-products of predecessor in crop rotation allows to slow down the processes of organic matter accumulation in soil. The application of liming and mineral fertilizers in combination with the introduction of EOM reduces the index of pedotropy in 2,1 times, only with mineral fertilizers (N60Р30К60) – in 1,5 times. Similarly, plowing of the EOM affects the intensity of other mineralization processes. The total biological activity increases as a result of EOM plowing into the soil: in the variant with the use of mineral fertilizers by 54,7 %, with mineral fertilizers and liming – by 28,9 %. Confirmed previously established laws regarding the impact of optimization of mineral nutrition on the activity of decomposition of humic substances: with an increase in the dose of mineral fertilizers in 1,5 and 2 times the activity of mineralization of humus decreases by 6.0 and 10,1 % respectively. With the improvement of mineral nutrition of plants, the amount of root extracts is increased, which is a more accessible substrate than humus acids, which leads to slowing down of the destruction of humus substances.
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Franco, Miguel Henrique Rosa, Regina Maria Quintão Lana, Reginaldo de Camargo, Camila Andrade de Carvalho Gualberto, and André Cabral França. "Biochar, Filter-Cake, and Polymer-Based Special Fertilizers for Maize Cultivation." Journal of Agricultural Science 12, no. 4 (March 15, 2020): 208. http://dx.doi.org/10.5539/jas.v12n4p208.
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This investigation assessed the effects of special fertilizers on maize. The experiment was performed according to a randomized block design, with four replications in a 7 × 4 + 1 factorial scheme, representing seven sources (filter-cake-based organic compound, biochar-based organic compound, organic-mineral (OM) filter-cake, OM biochar, OM filter cake + humic substances (HS), mineral fertilizer with polymers, and conventional mineral) and four fertilizer levels based on the nitrogen (N) contents (60, 120, 180, and 240 kg/ha). An absolute control, without any fertilizer application, was used. At 60 days after sowing (DAS), the plant growth parameters, nutritional status, and residual nutrients in the soil were evaluated. The mineral fertilizer with polymers and OM filter-cake + HS showed better results for the dry matter of the shoot of the plant and plant height. When considering the leaf area, the OM filter-cake and OM filter-cake + HS fertilizers stood out. The accumulation of N and potassium (K) in the shoot of the plants was higher when the OM filter-cake + HS and mineral fertilizer with polymers were applied. With respect to the accumulated phosphorus (P), treatment with the OM filter-cake, OM filter-cake + HS, and mineral with polymers showed better results. On the other hand, for the analysis of P and residual K in the soil, the treatments based on filter-cake and biochar organic compost were better. Treatment with the OM filter-cake + HS and mineral with polymers stood out when considering the plant growth parameters and nutritional aspects of the maize crop.
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Roulia, Maria. "Humic Substances: A Novel Eco-Friendly Fertilizer." Agronomy 12, no. 4 (March 22, 2022): 754. http://dx.doi.org/10.3390/agronomy12040754.
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Humic substances (HS) are macromolecular organic materials ubiquitous in both aquatic and terrestrial systems, effective electron shuttling compounds providing macro- and microelements in organochelate form, and play an important role in determining the mobility and bioavailability of organic/inorganic nutrients and mineral fertilizers [...]
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E.I., Lupova, and Vinogradov D.V. "INFLUENCE OF HUMIC FERTILIZER AND MINERAL FERTILIZERS DOSES ON THE PRODUCTIVITY OF SPRING RAPE." Bulletin of Agrarian Science 3, no. 84 (2020): 31–37. http://dx.doi.org/10.17238/issn2587-666x.2020.3.31.
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Skugoreva, Svetlana G., Nadezhda V. Syrchina, Tamara Ya Ashikhmina, and Grigory Ya Kantor. "Influence of humic fertilizers on growth and biochemical parameters of lettuce plants." Butlerov Communications 64, no. 11 (November 30, 2020): 108–15. http://dx.doi.org/10.37952/roi-jbc-01/20-64-11-108.
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Humic fertilizers (HF) are a separate group of organic fertilizers, which include humic acids (HA), fulvic acids (FA), their salts, as well as some mineral componenrs. They combine the beneficial properties of macro- and microelements, adaptogens, biofungicides, plant growth stimulants. The aim was to study the effect of the introduction of a humic preparation obtained from peat into the soil and fertilizers “Sotka Potassium Humate” (Sotka) on the growth and biochemical parameters of lettuce plants. In the course of the work, a humic preparation was obtained from milled peat of the production site “Gorokhovsky” (Kotelnichsky district of the Kirov region) of the branch of VyatkaTorf JSC by the method of leaching of humic substances (HS). The HS content in the obtained preparation was 23.4% (18.6% HA and 4.8% FA). It was found that the humic preparation from peat had a greater effect on the accumulation of pigments by plants than the Sotka HF. The effect was especially pronounced with a single application of the drug to the soil; over time, this effect decreased. The effect of using Sotka fertilizer was manifested when it was applied as a top dressing on the 30th day after planting the seeds. Based on the results of the study, a series of photosynthetic pigments in descending order of HFs effect on their accumulation has been constructed: chlorophyll a > chlorophyll b > carotenoids. Along with the accumulation of pigments, the introduction of HF into the soil led to an increase in growth parameters and lipid peroxidation in lettuce leaves, which indicates a greater intensity of biochemical processes occurring in plants under the influence of HS.
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Abd-Elzaher, Mohammed A., Ibrahim Z. Ibrahim, Fathi A. Khalil, and Wagih S. Mohamed. "Chemical composition and productivity for corn as affected by inorganic, organic nitrogen fertilizers and activators (Humic and Fulvic acid)." Current Chemistry Letters 11, no. 2 (2022): 207–18. http://dx.doi.org/10.5267/j.ccl.2022.1.001.
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The present investigation was carried out to study the effects of inorganic, organic nitrogen fertilizers and activators (Humic and Fulvic acid) on chemical composition and productivity of corn. This study was conducted at Shandweel Agricultural Research Stations, Sohag Governorate, Egypt, and is situated at 26.60 N latitude and 37.70 E longitude. Its altitude is about 70 m above mean sea level. Also, this study was performed during two successive summer seasons 2014 and 2015. The experiments were laid down in split-split plot design with four replications. The treatments were included mineral nitrogen application in three levels (i.e. 60, 90 and 120 kg N fed.-1), organic and bio fertilizer application (without organic and bio fertilizer, 10 m3 FYM fed.-1 and Microbeine inoculume) as well as foliar spray of humic acid (water spraying, humic and fulvic acid spraying). The obtained results revealed that the interaction effects of all factors under study were significant for all studied traits.
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Hamed, Soulef, Linda Abi-Ayad, Baha-Eddine Ghezlaoui-Bendi-Djelloul, and Mohammed Souddi. "Effects of Pomace Fertilization on some Phenological, Morphological and Biochemical characters of the Cherry tree in the Region of Tlemcen (Algeria): Case of the Black Bigareau and Sunburst." Advanced Research in Life Sciences 5, no. 1 (January 1, 2021): 18–27. http://dx.doi.org/10.2478/arls-2021-0025.
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Abstract Pomace is the solid residue by-product resulting from the extraction of olive oil. Their high content of organic compounds gives them the possibility of being used also as green manure. We have tried this amendment approach on two varieties of cherry grown in the Tlemcen region. The Sunburst and the Black Bigarreau. Its use in combination with N.P.K fertilizers increases the carbon content of the soil, boosts the formation of May bouquets, and improves the water-holding capacity of the clay-humic complex. The results of this study showed that olive pomace used as a fertilizer, alone or in combination with N.P.K mineral fertilizers creates an advantage on the phenological and biochemical aspect, especially on the Black Bigarreau variety.
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Antón-Herrero, Rafael, Carlos García-Delgado, Begoña Mayans, Raquel Camacho-Arévalo, and Enrique Eymar. "Impact of New Micro Carbon Technology Based Fertilizers on Growth, Nutrient Efficiency and Root Cell Morphology of Capsicum annuum L." Agronomy 10, no. 8 (August 8, 2020): 1165. http://dx.doi.org/10.3390/agronomy10081165.
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The aim of this study was to determine the effects of new Micro Carbon Technology (MCT®) fertilizers based on humic acids biologically digested on the growth and development of pepper plants. In this work, the biostimulant effect of MCT® fertilizers was compared to conventional mineral fertilizers. In order to evaluate MCT® fertilizers, a previous chemical characterization (infrared spectroscopy, liquid chromatography and mass spectrometry) of seven MCT® fertilizers was performed. Two fertilization tests of pepper plants were carried out in hydroponic conditions, where the fertilization and the age of the plants were studied in order to evaluate the specific effects on roots and leaves. Plant weight and foliar analysis (chlorophyll indices and nutrients) have been determined. Transmission electron microscopy was used to visualize the morphological differences in the root and leaf cells. Comparison between conventional and MCT® based fertilizers showed that, with the MCT® fertilizers, the plant is exposed to the presence of free amino acids (Glycine and Alanine), polyphenols and humic substances. Although no significant differences were found in plant mass production, the plants fertilized with MCT® products presented better nutritional status than plants treated with conventional fertilization in terms of nutrient content in leaves. Important morphological differences in root cells were found. A large central vacuole that represented the 68–83% of the total root cell area was shown if the MCT® products were used, suggesting significant changes of membrane permeability in terms of water adsorption and consequently nutrient storage. The morphological differences observed in the root cells were more noticeable in adult plants.
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Jovovic, Zoran, Zeljko Dolijanovic, Velibor Spalevic, Branislav Dudic, Novo Przulj, Ana Velimirovic, and Vera Popovic. "Effects of Liming and Nutrient Management on Yield and Other Parameters of Potato Productivity on Acid Soils in Montenegro." Agronomy 11, no. 5 (May 14, 2021): 980. http://dx.doi.org/10.3390/agronomy11050980.
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This study was conducted to evaluate the effect of liming (CaCO3 1000 kg ha−1) and application of organic fertilizers (rotted farmyard manure 40 t ha−1) and six different combination of mineral fertilizers: NPK 15:15:15 800 kg ha−1 + KAN (calcium ammonium nitrate) 240 kg ha−1; NPK 15:15:15 400 kg ha−1 + MCB (water-soluble mineral fertilizer NPK 13:11:20 + 2MgO + microelements + humic acid) 300 kg ha−1 + KAN 125 kg ha−1; MCB 400 kg ha−1; MCB 400 kg ha−1 + KMg (water-soluble mineral fertilizer Multi KMg 13:0:43 + 2MgO) 100 kg ha−1; MCB 600 kg ha−1 + KMg 100 kg ha−1 and MCB 800 kg ha−1 + KMg 100 kg ha−1 on yield and other productivity parameters of potato (Kennebec variety). The aim of the research was to optimize the system of potato plant nutrition for maximum profitability in the future potato production on acid soils of mountainous region of Montenegro. The experiments were carried out during 2015 and 2016, on Dystric Cambisols. The results obtained suggested that in both years, the highest values for all studied parameters were measured on plots with combined application of liming, organic and mineral fertilizers. In addition, a significant influence on the increase in the number of tubers per plant, the average tuber weight and the total yield was also demonstrated in all individual trials of potato nutrition, and the interaction of organic manure and mineral fertilizer. Fertilizing with rotted farmyard manure had significantly increased potato productivity, with the effect more pronounced in treatments with liming. The highest number of tubers (6.2 and 7.2), average tuber weight (93.5 g and 101.0 g) and yield (27.6 t ha−1 in 2015 and 34.8 t ha−1 in 2016, respectively) were obtained using combinations of MCB 800 kg ha−1 + KMg 100 kg ha−1 on variants fertilized with rotted farmyard manure and liming. This research is a valuable source of information for potato growers and scientists from this region as the results have shown how fertilization is raising productivity in this environment and its importance in the future potato growing on acid soils in mountainous regions of Montenegro and Western Balkans.
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Syrchina, Nadezhda V., Tamara Ya Ashikhmina, Nadezhda N. Bogatyreva, and Grigory Ya Kantor. "The optimization of the composition of fertilizers based on milled phosphorites." Butlerov Communications 60, no. 12 (December 31, 2019): 133–39. http://dx.doi.org/10.37952/roi-jbc-01/19-60-12-133.
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The phosphorites of many domestic deposits can be used as cheap natural phosphorus fertilizers of regional importance. The limitation of their use is due to the low solubility and, consequently, low agrochemical effectiveness. To increase the solubility of phosphorites (activation), it is proposed to use the method of granulation of phosphorite flour (PF) with an organomineral additive containing milled sulfur, glauconite and highly decomposed peat, dispersed by hydrodynamic cavitation. Phosphate activation is ensured by acids formed in the process of microbiological oxidation of sulfur in soils (convert insoluble phosphates to more soluble hydrophosphates), glauconite (promotes adsorption and ion exchange binding of cations that form insoluble phosphates, activates soil microbiota) and humic acid peat (oxides into stable complexes, stimulate the activity of soil microorganisms). In laboratory conditions, samples of the corresponding organic-mineral fertilizer were obtained. As phosphate raw materials, the PF of the Vyatka-Kama deposit (Russia) and the Khneifis deposit (Syria) were used. The study of the effect of fertilizer on the chemical composition of soils was carried out in a laboratory experiment. As a comparison object, simple superphosphate was used. Fertilizers were applied to the soil in an amount of 0.1 g per 1 kg of air-dried soil. It was revealed that already 7 days after fertilizing, the mobility of phosphorus increases by 31-45%, while the pH of the soil solution does not change. The sulfate content in soils increased by an average of 33%. In all variants of the experiment, the application of activated PF in the soil led to the same result as the application of simple superphosphate. Based on PF and an activating organomineral additive, a granular form of phosphorus fertilizer with sulfur and humic substances can be obtained that is not inferior in effectiveness to simple superphosphate. The production of appropriate fertilizer can be arranged at small enterprises and directly at phosphate mines, which will create new jobs and provide regional crop production with relatively cheap and fairly effective forms of phosphate fertilizers that comply with the principles of green chemistry. The composition and technology of fertilizer production make it possible to position it as a natural organic-mineral fertilizer for organic farming.
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Saakian, Alexander. "Effect of mineral fertilizers on the variability of phytochemicals in kale." АгроЭкоИнфо 1, no. 43 (February 28, 2021): 8. http://dx.doi.org/10.51419/202111080.
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The effect of five mineral nutrients on the variability of the content of biochemical compounds, such as flavonoids, phenolic compounds, vitamin C, carotenoids and the antioxidant activity of kale (Brassica Oleracea var. sabellica) collected at the edible maturity stage. Manipulation of the phytochemical composition of the kale cabbage using mineral fertilizers was evident in the results achieved. The various mineral nutrients used had different effects on the content of the studied phytochemicals. The content of flavonoids and carotenoids did not decrease with any of the various mineral nutrients used. Contrary to recent research suggesting that rare earth elements are good stimulators of secondary metabolite accumulation, our results showed a decrease in the content of phenolic compounds in plants fertilized with neodymium. The total antioxidant activity increased under the influence of NPK and humate, which correlated with the highest content of soluble phenolic compounds and flavonoids in kale leaves. Low doses of N have a positive effect on these indicators. Mineral supplements of trace elements also had a stimulating effect on the accumulation of the studied substances. However, in addition to trace elements, a significant role is played by the presence of humic acids (in humate), which together with trace elements have the maximum stimulating effect on the content of the substances under study. Keywords: MINERAL FERTILIZERS, ANTIOXIDANT PHYTOCHEMICALS, PHENOLIC COMPOUNDS, CAROTENOID, ANTIOXIDATIVE ACTIVITY, VITAMIN C, FLAVONOIDS, BRASSICA VEGETABLES
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Saakian, Alexander. "Effect of mineral fertilizers on the variability of phytochemicals in kale." АгроЭкоИнфо 1, no. 43 (February 28, 2021): 8. http://dx.doi.org/10.51419/20211108.
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The effect of five mineral nutrients on the variability of the content of biochemical compounds, such as flavonoids, phenolic compounds, vitamin C, carotenoids and the antioxidant activity of kale (Brassica Oleracea var. sabellica) collected at the edible maturity stage. Manipulation of the phytochemical composition of the kale cabbage using mineral fertilizers was evident in the results achieved. The various mineral nutrients used had different effects on the content of the studied phytochemicals. The content of flavonoids and carotenoids did not decrease with any of the various mineral nutrients used. Contrary to recent research suggesting that rare earth elements are good stimulators of secondary metabolite accumulation, our results showed a decrease in the content of phenolic compounds in plants fertilized with neodymium. The total antioxidant activity increased under the influence of NPK and humate, which correlated with the highest content of soluble phenolic compounds and flavonoids in kale leaves. Low doses of N have a positive effect on these indicators. Mineral supplements of trace elements also had a stimulating effect on the accumulation of the studied substances. However, in addition to trace elements, a significant role is played by the presence of humic acids (in humate), which together with trace elements have the maximum stimulating effect on the content of the substances under study. Keywords: MINERAL FERTILIZERS, ANTIOXIDANT PHYTOCHEMICALS, PHENOLIC COMPOUNDS, CAROTENOID, ANTIOXIDATIVE ACTIVITY, VITAMIN C, FLAVONOIDS, BRASSICA VEGETABLES
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Kosolapova, Natalia, Yekaterina Alferova, Olga Miroshnichenko, Elena Protsenko, and Natalia Balabina. "Comprehensive environmental assessment of innovative humic agro product." E3S Web of Conferences 265 (2021): 05008. http://dx.doi.org/10.1051/e3sconf/202126505008.
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There has been made the assessment of the product «CAVITA BIOCOMPLEX» quality parameters, manufactured according to the innovative technology of ultrasonic cavitation processing of peat in water medium at high static pressure. To carry out this assessment it has been used the universal system of procedure of comprehensive assessment of humic products. This system is based on the level approach. It was found that the sample of agro product in the capacity of the main bioactive components contains fulvic and humic acids (47.2-64.0% calculated at dry weight basis). It is chemically and biologically safe for the environment. The usage of high-quality natural raw materials in combination with the “green” technology of “CAVITA BIOCOMPLEX” production makes it possible to use it not only as additional application with any mineral or organic fertilizers, plant protection products, herbicides, but also as basic fertilizer for biological agricultural technologies.
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Sulakhudin, Sulakhudin, Abdul Syukur, Dja'far Shiddieq, and Triwibowo Yuwono. "Effect of Coated Urea with Humic-Calcium on Transformation of Nitrogen in Coastal Sandy Soil: A Soil Column Method." JOURNAL OF TROPICAL SOILS 15, no. 1 (April 9, 2018): 11. http://dx.doi.org/10.5400/jts.2010.v15i1.11-18.
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Effect of Coated Urea with Humic-Calcium on Transformation of Nitrogen in Coastal Sandy Soil: A Soil Column Method (Sulakhudin, A Syukur, D Shiddieq and T Yuwono): In coastal sandy soil, mainly nitrogen losses due to leaching resulted to low fertilizer efficiency. Slow-release N fertilizers are proposed to minimize these losses, and humic-calcium coated urea has been examined. A soil column method was used to compare the effects of coated urea with humic-calcium on transformation and leaching loss of N in coastal sandy soil. The experiment aid to compare two kind source humic substances (cow manure and peat) which mixed with calcium as coated urea on transformation, vertical distribution and leaching N in coastal sandy soil. The concentration of humic-calcium coated urea i.e.1%, 5% and 10% based on their weight. The results showed that urea coated with humic-calcium from cow manure (UCHM) and humic-calcium from peat (UCHP) increased the N total and available N in the soil and decreased leaching loss of N from the soil column. Compare to UCHP, UCHM in all concentration showed N-nitrate higher than N-ammonium on incubation length 2, 4 and 6 weeks. The N leached from a costal sandy soil with application coated urea with UCHM ranged from 21.18% to 23.72% of the total N added as fertilizer, for coated urea with UCHP they ranged between 21.44% and 23.25%, whereas for urea (control) reach 29.48%. Leaching losses of mineral N were lower when urea coated with UCHM compared to urea coated with UCHP or urea fertilizer. The study concluded that the UCHM is better than UCHP in decreasing N leached from coastal sandy soil.
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Marchi, Edilene Carvalho Santos, Giuliano Marchi, Carlos Alberto Silva, and Marco Antônio Rezende Alvarenga. "Crisphead lettuce under influence of soil conditioner, organic fertilizers and liming." Comunicata Scientiae 6, no. 3 (December 29, 2015): 274. http://dx.doi.org/10.14295/cs.v6i3.935.
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Lettuce is considered the main leafy vegetable crop in Brazil. High amounts of mineral and organic fertilizers are applied to soils during lettuce growth. There is a need of data concerning the effect of organic fertilizers and liming, including soil conditioners. Few studies were carried out verifying effects of soil conditioners, organic fertilizers and liming on lettuce production. The aim of this work was to test a soil conditioner composed of humic material, organic fertilizers and liming on “iceberg” lettuce production. The experiment was conducted at Federal University of Lavras, Minas Gerais State, Brazil, from March to July, in greenhouse conditions. The experimental design was completely randomized in a factorial scheme 5x3x2. Five doses of soil conditioner (0, 20, 40, 100, 200 L ha-1), 3 types of fertilizers (organic compost, chicken manure and mineral), with or without liming were studied. Fresh and dried biomass, commercial fresh and dried biomass, plants height, circumference of lettuce head, number of leaves, and dried root weight yield were evaluated. Chicken manure rendered the higher lettuce shoot commercial fresh weight and circumference than the other evaluated fertilizers. In general the soil conditioner did not influence lettuce production. The use of liming was very important on lettuce production when mineral fertilizers were used.
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Vaillancourt, N., L. E. Parent, P. Buteau, V. Parent, and A. Karam. "Sorption of ammonia and release of humic substances as related to selected peat properties." Canadian Journal of Soil Science 79, no. 2 (May 1, 1999): 311–15. http://dx.doi.org/10.4141/s98-046.
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Peat is a hetorogenous material containing humic substances (HS) that increase its fertilizer value, and acid functional groups that react with ammonia. However, polyvalent cations may block some ammonia-sorbing sites. Sixty-seven peat samples were collected in Quebec (i) to relate the colorimetric Kaila pyrophosphate test for extracting HS to the von Post field test and (ii) to correlate ammonia sorption capacity (ASC) to selected peat properties as follows: von Post test, Kaila pyrophosphate test, pH(H2O), pH(CaCl2), pH(KCl), exchangeable acidity as well as ash, Ca, Al and Fe contents. Exchangeable acidity was the most highly correlated with ASC (P < 0.01). Using field-moist material and a 1:4 peat:solution volumetric ratio, the most reliable criteria were pH(CaCl2) < 4.4 and pH(KCl) < 4.5. Using air-dry peat and a 3:50 peat:solution ratio, the corresponding criteria were pH(CaCl2) < 4.3 and pH(KCl) < 4.1. The pH(CaCl2) method provided the most consistent determination of peat acidity, whether taken on a volume or weight basis. A minimum pyrophosphatate test value between 0.1 and 0.2 absorbance unit is apparently required for making peat composts and peat-ammonia-mineral fertilizers enriched in soluble humic substances. The pH(CaCl2) method and the Kaila pyrophosphate test should be combined to routinely control the quality of peat materials for making peat composts and peat-ammonia-mineral fertilizers. Key words: pH, exchangeable acidity, pyrophosphate test, ammonia sorption capacity
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Shaykova, Tat'yana, Elena Volkova, and Marina Dyatlova. "Application new complex fertilizers and biological preparations on the sowing of the fodder winter rye in the Pskov region’s conditions." Agrarian Bulletin of the 202, no. 11 (November 26, 2020): 45–52. http://dx.doi.org/10.32417/1997-4868-2020-202-11-45-52.
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Abstract. The development of optimal nutritional system for agricultural crops is one of the main factors for the getting of stable yields. The deficiency of some macro- and microelements in plant nutrition, leading to yield decreasing, can be compensated with new complex of balanced fertilizers and biological products. The aim of the work is to study the effect of nitrogen fertilization, new forms of complex fertilizers based on active biological substances (“Kodamin B-Mo”, “K-Gumat-Na”, “Agroflorin” “Auksinolen”) and the microbiological preparation (MBP) “Bisolbifit” on the yield and quality of grain of fodder winter rye “Novaya Era” on sod-podzolic soils in the Pskov region. The originality is that for the agro-ecological conditions of the Pskov region, the influence of new complex fertilizers, biological and humic preparations in the cultivation of winter rye has been studied. Methods. The research was carried out in 2019 on the experimental field of the laboratory of agricultural technologies of the Federal research center for Bast Crops (Pskov Department). The records, observations and analyzes were carried out according to generally accepted methods. Results. The maximal positive effect on grain yield was made with the introduction of complete mineral fertilizer in doses of N80P40K70 with fractional nitrogen application: 20 kg of active substance – in the main fertilizer, 40 kg – in the tillering phase and 20 kg – in the booting phase. Up to 1,3 t/ha or 42.2 % to the control level were obtained in that variation. Application of mineral fertilizers in a dose of N40P40K70 and MBP “Bisolbifit” increased on 0,4 t/ha of grain, which amounted 10.6 %. Foliar double treatment of plants with fertilizer “Kodamin B-Mo” increased grain yield up to 8.6 %. The influence of the investigated factors on the protein content and nitrate nitrogen in plants of fodder winter rye, the weight of 1000 seeds and the structure of the yield was established. For 1 kg of active substance of mineral fertilizers at various doses of nitrogen fertilizing the additional yield of grain from 3.68 to 6.39 kg was obtained.
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Gasanova, E. S., A. N. Kozhokina, N. G. Myazin, and K. E. Stekolnikov. "Humus is a guarantor of the stability of agroecosystems." BIO Web of Conferences 36 (2021): 03020. http://dx.doi.org/10.1051/bioconf/20213603020.
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The paper studies the processes of transformation of the molecular structure of humic (HA) and fulvic acids (FA) of leached chernozem under the influence of fertilizers and meliorant. The research was carried out under the conditions of many years of stationary experiment of the Department of Agrochemistry, Soil Science and Agroecology of the FSBEI HE Voronezh SAU. Samples of leached low-humus thin heavy-loamy chernozem were analyzed. The isolated and purified preparations of HA and FA were studied on a SM2203 spectrofluorimeter in the ultraviolet and visible ranges. The paper also presents the results of determining the most important physical and chemical properties of soil variants using various fertilizer and meliorant systems. Limed variants have optimal indicators. Based on the analysis, it can be assumed that the FA molecules of the variant with a double dose of mineral fertilizers on the background of manure differ in a developed aliphatic part, have many auxochromic substituents. HA of the same variant are characterized by a high condensation of nuclear structures. The HA and FA molecules of the variant with the joint application of fertilizers and meliorant have a more complex structure of the nuclear and peripheral parts. According to the results of calculations of extinction coefficients, it was found that liming contributes to the accumulation of more mature forms of humic acids.
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Poletaev, Ilya Sergeevich, Anatoly Petrovich Solodovnikov, Natalya Nikolaevna Gusakova, and Aleksandr Sergeevich Lynkov. "Formation of yield and quality of spring wheat grain after foliage application in the Saratov trans-Volga region." Agrarian Scientific Journal, no. 9 (September 24, 2019): 18–24. http://dx.doi.org/10.28983/asj.y2019i9pp18-24.
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The features of changing the productivity of spring wheat under the influence of weather conditions and after foliar application with humic acid fertilizers, mineral and organic-mineral fertilizers are considered. It is shown that at 56% of the norm of precipitation for vegetation and air temperatures fall above the annual average by 4–7 ° C, the yield of spring wheat decreases by 0.85 t / ha or by 41%. After three-year experiments, it was noted that, under the influence of the studied agricultural practices, the yield of spring wheat increases as well as the grain quality of this crop. The highest yield was in the variants after application of Biocomplex and Biohumus; it was 1.76 and 1.71 t / ha, respectively, which is 29.4 and 25.7% higher than the control. Organic and mineral fertilizers containing a complex of microelements and organic acids had a greater effect. Thus, the protein content was up to 17.6%, dry gluten – up to 30.8%, raw gluten – 33.5%, IDK was 78.2 units.
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Georgieva, Olga, and Natalia Karadzhova. "Use of growth regulators and saprophytic fungi Trichoderma viride pers ex fr. to improve the health status of the soil in pepper field." Agricultural Sciences 13, no. 29 (June 7, 2021): 102–9. http://dx.doi.org/10.22620/agrisci.2021.29.012.
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The article presents studies on the influence of the microbiological product “Trichodermine”, bio-organic fertilizers and growth regulators based on humic acids „Nagro”, „Stimix”, „BioLife” and mineral fertilizers (NPK) on the biological activity of the soil, the degree of disease, caused by Alternaria capsici-annui Savul & Sandu and pepper yield in field production. It has been found that the differences in the "Soil Biological Activity" indicator depends on the number of micro-organisms, the composition (species diversity) and the percentage of major Micromycetes. Organic products help optimize soil health and reduce the total content of fungal colonies, and in the Micromycetes composition the fungus Trichoderma sp. is more common. When mineral fertilizers are introduced, the number of fungal pathogens and toxin producers increases. A higher total yield was obtained in variants with biological treatment. The increase in yield is between 9% and 29%.
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Petrova, Zhanna, Vadym Paziuk, and Anton Petrov. "TECHNOLOGY FOR PRODUCING HUMIC SUBSTANCES FROM PEAT." ENGINEERING, ENERGY, TRANSPORT AIC, no. 4(111) (December 18, 2020): 55–60. http://dx.doi.org/10.37128/2520-6168-2020-4-6.
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Humic acids are the most important component of soil humus. The higher their content, then the soil is fertile. However, in the natural state, humic acids are insoluble in water and little available to plants. They become available only after indirect action - humus mineralization, when it transforms into simple mineral compounds. In nature, more humic acids are found in low-calorie fuels - brown coal, peat and others. For power engineering, humic acids are an undesirable component, fuel with their high content is of low grade. However, for the production of humates - the more of them in the raw material, the better. Chemical activation of peat by treatment with an alkaline solution activates humic acids, which transform into a plastic water-soluble state. Humic substances of peat are both a natural astringent and a fertilizer useful for restoring the humus layer. The classical technology for the extraction of humic substances using chemical methods is based on high temperatures of the mixture and requires a lot of electricity. The proposed mode of extraction of the humus component according to the developed standard procedure takes place at an extraction temperature of 20 ° C, 60 ° C and the duration of treatment with an alkaline solution in a cavitation apparatus for 20 min, 40 min and 60 min. The research was carried out on milled and dry peat. The humic components in the humic substances were determined using a method adapted to our conditions. For the first time, the stage of extraction of humic components of peat, integrated into peat-processing production, made it possible to remove a sufficient amount of humic substances for the production of organic fertilizers. The remainder of the peat after extraction contains a sufficient amount of activated humic substances, which are a binding component for the production of peat briquettes.
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Sądej, Wiera, and Andrzej Cezary Żołnowski. "Comparison of the effect of various long-term fertilization systems on the content and fractional composition of humic compounds in Lessive soil." Plant, Soil and Environment 65, No. 4 (April 23, 2019): 172–80. http://dx.doi.org/10.17221/777/2018-pse.
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A field experiment was established in 1972 on Luvisol. Three types of fertilizers – cattle manure (CM), cattle slurry (CS) and mineral fertilizers were used. CS was applied in the following doses: I – balanced with CM in terms of the amount of introduced total nitrogen and II – balanced with CM in terms of the amount of introduced total organic carbon (C<sub>tot</sub>). 39 years after the experiment was established, half of each experimental plot was limed and since then the experiment was carried in two series – non-limed and limed soils. The paper presents the results of soil analyses 41 years after the experiment was started. It was found that each fertilization system increased the C<sub>tot</sub> content in soil in relation to the unfertilized control plot. The increase of C<sub>tot</sub> fluctuated between 0.35–6.22 g/kg of dry matter. In both series, the highest C<sub>tot</sub> content was observed in the soil fertilized with CM and CM + PK. Limed compared to non-limed soil contained nearly 25% more carbon of humic acids than fulvic acids and nearly 20% lower content of low molecular humic bonds. Liming considerably widened the humic acids carbon:fulvic acids carbon (C<sub>HA</sub>:C<sub>FA</sub>) ratio of the fertilized soils, up to 1.32–1.87, while the corresponding objects of the non-limed series showed the C<sub>HA</sub>:C<sub>FA</sub> ratio between 0.75–0.97.
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El-Hadidi, E., A. Taha, and M. Soliman. "ROLE OF HUMIC SUBSTANCES, SEAWEEDS AND MINERAL FERTILIZERS IN IMPROVEMENT OF CUCUMBER PRODUCTION." Journal of Soil Sciences and Agricultural Engineering 1, no. 10 (October 1, 2010): 985–97. http://dx.doi.org/10.21608/jssae.2010.75484.
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Bezuglova, Olga, Andrey Gorovtsov, Artem Grinko, Semyon Kartashev, Alexander Klimenko, Vladimir Lykhman, Evgeny Patrikeev, and Elena Polienko. "Effect of Pesticide and Humic Preparation on the Soil Structure during Pea and Chickpea Cultivation." Agronomy 11, no. 10 (October 13, 2021): 2053. http://dx.doi.org/10.3390/agronomy11102053.
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The article presents the results of a 3-year experiment to study the soil structure with the combined use of insecticides and a humic preparation. Crops were peas (Pisum sativum) and chickpeas (Cicer arietinum). The experiment was carried out in 2019–2021 at the experimental fields of the Federal Rostov Agrarian Scientific Center, located in the Rostov region in the south of the European part of Russia (47°21′ N, 39°52′ E). Soil was Calcic Chernozem Loamic. The studies were carried out both without fertilization and with the use of mineral fertilizers (N40P40K40). Sowings of leguminous crops were treated with a mixture of insecticides and a humic preparation in the phase of bean formation. The humic preparation BIO-Don10 was obtained according to the authors’ technology by alkaline extraction from vermicompost—a product of manure processing by compost worms of the Eisenia foetida species. The preparation contains salts of humic acids and fulvic acids in the amount of 1.9 g/L; the concentration in the mixture with the insecticide was 0.002%. An increase in the structure and water resistance coefficients was observed. A decrease in the block fraction and an increase in the total number of agronomically valuable aggregates were substantiated. It was found that in the cultivation of legumes, the application of mineral fertilizers had a negative effect on the structure of the soil, while, when using pesticides, the structure was preserved better by the end of the growing season. The revealed patterns can be associated with the activity of microorganisms participating in the hydrolysis of organic compounds that stabilize soil aggregates.
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Tudor, Emilian, Traian Cioroianu, Carmen Sirbu, Mihail Dumitru, Adriana Grigore, and Lavinia Parvan. "Fertilizer for the Treatment of Iron Chlorosis Physico-chemical and agro-chemical properties." Revista de Chimie 68, no. 1 (February 15, 2017): 65–71. http://dx.doi.org/10.37358/rc.17.1.5390.
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Iron chlorosis represents a physiological phenomenon with negative impact on the quality and quantity of grape production in the vineyards. The bicarbonates are considered to be the main group of compounds which immobilize the iron in the soil in forms not assimilable by the plants. The grape production in conditions of iron deficiency can be improved significantly by applying foliar fertilizers. The best result in mitigating the effects of iron deficiency were obtained by the application of the fertilizers which, in addition to a complex mineral composition, also have a content of organic matter in the form of humic substances or protein hydrolysate.
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Dantas, Bárbara França, Maiane Santos Pereira, Luciana de Sá Ribeiro, Joselanne Luiza Trajano Maia, and Luis Henrique Bassoi. "Effect of humic substances and weather conditions on leaf biochemical changes of fertigated guava tree, during orchard establishment." Revista Brasileira de Fruticultura 29, no. 3 (2007): 632–38. http://dx.doi.org/10.1590/s0100-29452007000300040.
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In São Francisco Valley, Northeast Brazil, humic substances have been used by growers in fertigated fruit crops, due to its improvements on soil conditions and in plant nutrient uptake, metabolism and growth, reported from different growing places and crops. Nevertheless, little information about plant response to humic substance usage for local soil, weather and cropping system conditions is known. Hence, the metabolic response of guava tree during the orchard establishment to fertigation with humic substances and its correlation to the weather conditions were evaluated in Petrolina, State of Pernambuco. The treatments were manure application in soil combined with mineral fertilizers and humic substances applied through water of irrigation. The results showed that the fertigation treatments and plant age did not present conclusive effects in guava leaf contents of carbohydrates, proteins and amino acids. On the other side, the leaf contents of these compounds were influenced by the weather conditions.
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Lopushniak, V. "Fertilization System as a Factor of Transforming the Humus State of the Soil." Agricultural Science and Practice 2, no. 2 (July 15, 2015): 39–44. http://dx.doi.org/10.15407/agrisp2.02.039.
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Aim. To establish the effect of different fertilization systems in short fi eld crop rotation on the change in the state of humus in the dark gray podzolic soils in Western Forest-Steppe of Ukraine. Methods. Field studies were carried out in a stationary experiment of the Department of Soil Science and Agricultural Chemistry of the L’viv National Agrarian University; determination of humus content – according to DSTU 4289:2004, and that of its labile forms – in accordance with DSTU 4732:2007, fraction-group composition – by Ponomare- va-Plotnikova’s method, according to the measurement procedure 31-497058-008-2002. Results. The use of organo-mineral fertilizer system in short fi eld crop rotation with the saturation of organic fertilizers of 15 t/ha of crop rotation contributes to the humus content increase by 0.7 % after the third rotation in 0–40 cm layer of dark gray podzolic soil, the increase in the share of stable forms of humic compounds up to 57–59 % and the increase in the ratio of R HA :R FA to 1.3–1.4. The study demonstrated very high dependence of amount of gross energy reserves in the humus on the R HA :R FA ratio. Conclusions. The combined application of organic fertili- zers in the form of manure, non-market of the crop (straw) and siderate, along with mineral fertilizers is re- commended in short fi eld crop rotations of Western Forest-Steppe of Ukraine toensure expanded reproduction of fertility of dark gray podzolic soil, improvement of its humus status, increase in gross energy reserves and the share of the stable forms and humic acids in the humus.
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Souguir, M., and C. Hannachi. "Response of Sesame Seedlings to Different Concentrations of Humic Acids or Calcium Nitrate at Germination and Early Growth." Cercetari Agronomice in Moldova 50, no. 1 (March 28, 2017): 65–77. http://dx.doi.org/10.1515/cerce-2017-0006.
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Abstract This study was conducted in order to evaluate the response of sesame seeds (Sesamum indicum L.) to organic or mineral fertilization. The effects of two fertilizers, which were calcium nitrate and humic acids were studied separately at germination and early seedlings growth. Different concentrations of humic acids (HA0: 0, HA1: 500, HA2: 1000 and HA3: 2000 mg L-1) or calcium nitrate (CaN0: 0, CaN1: 50, CaN2: 100 and CaN3: 200 mg L-1) were applied distinctly to the growth media. The experimental design was accomplished in a completely randomized block design with three replications. Germination measurements, seedlings length, fresh seedling weight, total chlorophylls and carotenoids, total soluble proteins and sugars were determined. Results showed that humic acids applied at 1000 mg L-1 or calcium nitrate applied at 100 mg L-1 reduced the mean germination time (3.5 and 3.61 days) and had the highest germination index (GI) and the highest coefficient of velocity (CV). The longest seedling was obtained at the concentrations HA2 and CaN2 (+22%). Total chlorophyll and carotenoids were significantly higher in seedlings receiving the HA2 and CaN2 and these treatments increased total soluble proteins content by 32%. Higher concentrations of humic acids or calcium nitrate HA3 and CaN3 delayed germination and enhanced proline and total soluble sugars, respectively, by 42% and 46%, compared to control. These preliminary results indicated that the use of fertilizers should be optimized and they can be transformed at high level to an abiotic stress menacing plant productivity. On the other hand, suitable concentrations of fertilizers can be used in the future as a remedy to improve growth under abiotic stress.
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Misnikov, Oleg. "The Use of Peat Deposits of the Russian Federation for Organic Fertilizers Production." E3S Web of Conferences 174 (2020): 01015. http://dx.doi.org/10.1051/e3sconf/202017401015.
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In agricultural production, soil fertility and the overall productivity of arable land depends on the quality and quantity of mineral and organic fertilizers. The decrease in the humus content in soil observed over the past decade requires a systematic use of various organic fertilizers. The use of peat-based fertilizers guarantees high and sustainable crop yields. Restoration of soil fertility should be carried out by organic fertilizers enriched with humic acids with physiologically active groups, free nitrogen-containing components, a complex of nutrients and micro elements. The author considers the possibility of using humus peat ameliorants for the restoration of disturbed lands and the increase of soil fertility. The production and use of peat-based organic fertilizers and ameliorants in various sectors of the economy is an incentive for the stable functioning of the peat business and a significant factor in the socio- economic development of the regions of the Russian Federation.
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Dall’Orsoletta, Daniel J., Luciano C. Gatiboni, Djalma E. Schmitt, Bruna Arruda, and Joice C. Heidemann. "Do enzyme inhibitors dicyandiamide and NBPT influence the microbial immobilization of phosphorus in Humic Cambisol?" Revista Brasileira de Engenharia Agrícola e Ambiental 22, no. 11 (November 2018): 788–92. http://dx.doi.org/10.1590/1807-1929/agriambi.v22n11p788-792.
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ABSTRACT The application of nitrogen fertilizers, both organic and mineral, can cause nitrate losses by leaching. To minimize this effect, enzyme inhibitors are used. However, the effects on microbial biomass, which is the most sensitive and dynamic compartment of nutrients in the soil, as well as its effect on nutrients such as phosphorus (P) are unknown. This study aimed to evaluate the influence of the enzyme inhibitor (EI) on soil microbial phosphorus (Pm) when mineral fertilizer (NPK) or liquid swine manure (LSM) was applied in corn cultivation. The experiment was installed in a Humic Cambisol in Lages – SC, Brazil (27° 47’ 08” S; 50° 18’ 09” W) in the 2012/2013 season. The treatments consisted of: i) NPK; ii) NPK + EI; iii) LSM; iv) LSM + EI, applied before sowing of corn, and v) control (without application of fertilizer and enzyme inhibitor) arranged in a randomized block design, under no-tillage system. Soil samples were collected from the 0-0.10 m layer at 0, 10, 25, 58, 90, 135 and 202 days after application of the treatments. The Pm content was not affected by the enzyme inhibitor application but was influenced throughout the crop cycle in response to water balance and corn cultivation.
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Pavlovich, L. B., and V. M. Strakhov. "Effect of Humic Fertilizers from Brown Coal on the Mineral Composition of Vegetable Crops." Solid Fuel Chemistry 52, no. 3 (May 2018): 206–10. http://dx.doi.org/10.3103/s0361521918030084.
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Lishtvan, Ivan I., Galina V. Naumova, Nadezhda A. Zhmakova, Natalyia L. Makarova, Tatiyana F. Ovchinnikova, and Aleksander A. Makееnko. "INVESTIGATION OF THE COMPOSITION OF THE ORGANIC AND MINERAL PARTS OF SOLID WASTE FROM THE PRODUCTION OF HUMIC PREPARATIONS." Nature Management, no. 1 (June 30, 2021): 187–97. http://dx.doi.org/10.47612/2079-3928-2021-1-187-197.
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The composition of the organic and mineral parts of solid residues from the production of humic preparations
Hydrohumate, Oxyhumate, peat oxidate and Consil was studied. Significant differences in the component composition of these wastes, depending on the technologies for obtaining drugs, have been established. Redox-hydrolytic processing of peat leads to almost complete (acid-base hydrolysis) or partial (oxidation) destruction of hemicelluloses and the relative accumulation of cellulose and "lignin" in solid waste. The organic parts of the residues contain up to 30 % humic substances, due to the fact that the technologies for the production of humic preparations do not provide for the stage of washing the residues after separation in a centrifuge and some of the humic preparations remain in the solid phase. It is shown that the mineral part of solid residues includes a wide range of biogenic macro-and microelements,
since humates of monovalent metals pass into solution, and salts of humic substances with metals of higher valence are insoluble and remain in the solid residue from hydrolysis or oxidation of peat. The study of the chemical composition of solid residues from the production of humic preparations showed possible
directions for their effective disposal. Waste products are humate-containing products with a wide range of biogenic macro-and microelements, so they can be effectively used as biologically active additives to soils, compost, fertilizers, as well as in pond fish farming to stimulate the development of components of the natural food base of fish and increase the fish productivity of reservoirs.
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Aksenova, Yu V. "The direction of the chernozem soils evolution under the influence of agrogenic effects." IOP Conference Series: Earth and Environmental Science 981, no. 3 (February 1, 2022): 032022. http://dx.doi.org/10.1088/1755-1315/981/3/032022.
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Abstract Long-term irrigation caused a rise in the groundwater level and the chernozem evolution into meadow-chernozem soil, which in wet years are in the meadow mode. Soils, used in grain-grass crop rotations, were characterized by high fertility level. Perennial grasses stabilized the content of humus at the level of 6.5–7.2%. Under conditions of irrigated farming, its amount increased to 7.2–8.0%. Humic acids prevailed in the qualitative composition of humus, the value of which decreased against the background of the combined application of mineral and organic fertilizers. The share of fulvic acids was lower in irrigated soils in the variants without and with the application of mineral fertilizers. The use of mineral fertilizers against irrigation reduced the water-resistance of soil aggregates by 20–40%. Soils occupied by vegetable crop rotations had a low fertility level. With the cultivation of vegetable crops without fertilizers application, the amount of humus set at the level of 3.9–5.0%. Irrigation caused an increase in the soil-absorbing complex of exchangeable magnesium and sodium on average by a factor of 2 and led to the tendency of development of soil alkalinity. Against the background of high content of exchangeable sodium, the soil structure completely lost its resistance to the water eroding action. The aggregate state of the soil is satisfactory, but the number of agronomically valuable aggregates was below the optimal level.
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Gorbachenko, N. I. "THE EFFICIENCY OF MICROBIAL PREPARATIONS AT SUGAR SORGHUM CULTIVATION IN POLISSYA REGION." Agriciltural microbiology 18 (March 31, 2014): 39–50. http://dx.doi.org/10.35868/1997-3004.18.39-50.
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The paper presents the results of lyzimetric and field studies on the impact of microbial preparations Microhumin and Polymyxobacteryn combined with mineral fertilizers on the productivity of sugar sorghum in Polissya region. It was shown that the pre-sowing seeds bacterization had increase crops yields by 5 – 9% and increased output of ethanol by 0.3 t/ha. Application of biological preparations had ensured less reduction of water-soluble humic substances by 28 – 32%, nitrogen (nitrate) – by 11 – 15%, calcium – by 7%, magnesium – by 8 – 15%.
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Karčauskienė, Danutė, Regina Repšienė, Dalia Ambrazaitienė, Ieva Mockevičienė, Gintaras Šiaudinis, and Regina Skuodienė. "A complex assessment of mineral fertilizers with humic substances in an agroecosystem of acid soil." Zemdirbyste-Agriculture 106, no. 4 (November 8, 2019): 307–14. http://dx.doi.org/10.13080/z-a.2019.106.039.
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L. V., Potapenko, and Horbachenko N. I. "SPECIAL ASPECTS OF MIGRATION OF WATER-SOLUBLE ORGANIC SUBSTANCE AND BIOGENIC ELEMENTS IN SOD-PODZOLIC SOIL DEPENDING ON FERTILIZATION SYSTEM AND MICROBIAL PREPARATIONS." Agriciltural microbiology 33 (June 18, 2021): 81–87. http://dx.doi.org/10.35868/1997-3004.33.81-87.
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Objective. To study special aspects of vertical migration of products of biological transformation of organic matter and biogenic elements in sod-podzolic soil under different modes of root nutrition of plants. Methods. Lysimetric experiment, agrochemical, mathematical and statistical. Results. Based on studies conducted in a long-term lysimetric experiment on sod-podzolic soil, periodically washed type of water regime was established, as a result of which 37 mm of moisture, 23 kg/ha of water-soluble humic substances, nitrogen (NO3–) 55 kg/ha, calcium oxide 91 kg/ha and magnesium oxide 26 kg/ha magnesium oxide is lost at the background without inoculation per crop rotation when using mineral fertilization system. The use of microbial preparations reduces the loss of these elements to 33 mm, 20 kg/ha, 52 kg/ha, 83 kg/ha and 25 kg/ha, respectively. It was established that the average infiltration of moisture from the layer 0–155 cm under crops of continuous sowing was 25–37 mm at the background without the use of microbial preparations and 22–33 mm at the background of inoculation. The mineral fertilizer system increased the losses of the soil solution by 9 mm and 7 mm versus the control variants, respective to the backgrounds. The lowest losses of productive moisture were reported in the variants where sidereal fertilizers were used. When replacing the mineral fertilization system with sidereal-mineral and organo-mineral fertilizers without compromising the yield of crop rotations, it is possible to reduce the loss of productive moisture by 1.5 times, reduce the loss of labile soil organic matter by 1.7–1.8 times, nitrate nitrogen by 8–10 %, calcium by 18–24 % and magnesium by 40–50 %. Due to the use of biopreparations, there is a reduction in losses of nitrate nitrogen by 5–18 %, magnesium — by 5–14 %, calcium — by 6–16 %. Conclusion. To reduce non-productive losses of moisture, water-soluble organic matter and biogenic element compounds, it is advisable to use green mass of green manures and microbial preparations at the background of the mineral system and fertilizer system NPK+manure. The use of microbial preparations helps to reduce the loss of nitrate nitrogen by 5–18 %, magnesium — by 5–14 %, calcium — by 6–16 %.
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M. Farid, Ihab, Mohamed A. El-Ghozoli, Mohamed H. H. Abbas, Dalia S. El-Atrony, Hassan H. Abbas, Mohamed Elsadek, Hosam A. Saad, Nihal El Nahhas, and Ibrahim Mohamed. "Organic Materials and Their Chemically Extracted Humic and Fulvic Acids as Potential Soil Amendments for Faba Bean Cultivation in Soils with Varying CaCO3 Contents." Horticulturae 7, no. 8 (July 21, 2021): 205. http://dx.doi.org/10.3390/horticulturae7080205.
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Organic amendments are important sources of nutrients that release upon organic matter degradation, yet the stability of these organics in arid and semi-arid regions is relatively low. In contrast, humic substances (HS) are resistant to biodegradation and can keep nutrients in the soil available for the plant over a long time. Combinations between humic substances (HS) and mineral-N fertilizers are assumed to retain higher available nutrients in soils than those recorded for the sole application of either mineral or organic applications. We anticipate, however, that humic substances might not be as efficient as the organics from which they were extracted in increasing NP uptake by plants. To test these assumptions, faba bean was planted in a pot experiment under greenhouse conditions following a complete randomized design while considering three factors: two soils (calcareous and non-calcareous, Factor A), two organics (biogas and compost, Factor B) and combinations of the organics and their extracts (HA or FA) together with complementary doses of mineral-N ((NH4)2SO4) to attain a total rate of 50 kg N ha−1 (the recommended dose for faba bean plants) (Factor C). Results indicated that nitrogenase activity increased significantly due to the application of the used organics. In this respect, compost manure caused higher nitrogenase activity than biogas manure did. Humic substances raised NP-availability and the uptake by plants significantly; however, the values of increase were lower than those that occurred due to the compost or biogas manure. Moreover, the sole application of the used organics recorded the highest increases in plant biomass. Significant correlations were also detected between NP-availability, uptake and plant biomass. This means that HS could probably retain nutrients in available forms for long time periods, yet nutrients released continuously but slowly upon decomposition of organics seemed more important for plant nutrition.
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BIDEGAIN, R. A., M. KAEMMERER, M. GUIRESSE, M. HAFIDI, F. REY, P. MORARD, and J. C. REVEL. "Effects of humic substances from composted or chemically decomposed poplar sawdust on mineral nutrition of ryegrass." Journal of Agricultural Science 134, no. 3 (May 2000): 259–67. http://dx.doi.org/10.1017/s0021859699007492.
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Two organic fertilizers were prepared from the same initial mixture of poplar sawdust, blood and flour either by composting in a reactor or by chemical oxidation. Both processes resulted in loss of c. 30% of the organic matter. Composting required 90 days in comparison to only a few hours with chemical oxidation. Extraction of the organic residues with 1 N KOH gave solutions containing 24·6 and 15·1 g/l of humic substances respectively. These humic solutions were applied to pot-grown Lolium multiflorum Lam. at 4 and 10 mg carbon per pot to assess the short-term uptake of macro and microelements by the plants. When the plants were short of phosphorus, the humic substances from the chemically decomposed sawdust supplied at 10 mg C per pot improved total P uptake and yield. Humic substances also increased copper and manganese uptake, and by enhancing root development, also improved nitrogen uptake and biomass yield.
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Gyrka, A. D., I. D. Tkalich, Yu Ya Sydorenko, and O. V. Bochevar. "Peculiarities of formation the grain productivity of spring barley depending on terms and norms of foliar fertilization." Scientific Journal Grain Crops 4, no. 2 (December 11, 2020): 272–80. http://dx.doi.org/10.31867/2523-4544/0135.
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One of the ways to improve the nutritional conditions of plants and therefore increase the productivity of agrocenoses of spring cereals, is the use of mineral fertilizers, both in their main application and in the spring fertilization of vegetative plants. And that is why the purpose of study was to improve agro-technical measures for growing spring barley, which would be based on the use of biological potential of the crop and the use of resource-saving technologies in the Northern Steppe of Ukraine. The study was conducted at the Erastivka Experimental Station of SI Institute of Grain Crops of NAAS during 2017–2019, according to generally known methods. Soil of experimental field – ordinary chernozem, low-humic, loamy. The humus content in arable soil layer (0–30 cm) – 4,0–4,5 %, total nitro-gen – 0,23–0,26 %, phosphorus – 0,11–0,16 %, potassium – 2,0–2,5 %, pH of water extract – 6,5–7,0. Field experiments were laid in six-field crop rotation after predecessor winter wheat. In experi-ments seeded spring barley of variety Stalker with seeding rate 4,5 million of grains/ha. Soil prepara-tion, sowing, care of crops and harvesting were carried out strictly according to the zonal recommendations. Variants in a field experiment designed systematically, with three replications. Accounting plots area – 25 m2. Arid conditions of Ukraine’s Steppe zone is quite complex. Two-thirds of land in Ukraine referred to zone of risky agriculture, but even here you can use 30–50 % and more of varieties capacity, in consideration of importance the local gene pool in creating highly adapted varieties based on local varieties and using the developed agrotechnical growing measures, that promotes plants to be resistant to dry conditions of Steppe zone of Ukraine. Weather conditions during the investigation were different, which made it possible to fully assess its impact on grain productivity potential of spring small cereals. Phenological observations, analysis of yield structure elements and grain productivity of spring barley of variety Stalker when grown without fertilizers and fertilizing with N30P30K30 as well as the use of different terms and doses of foliar fertilization of plants with ammonium nitrate and humic preparation humisol plus in conditions of Steppe zone of Ukraine are presented. It was found that the growth, development and formation of productivity elements of spring barley plants were significantly influenced by the timing and dosing of fertilization. Earlier fertilization of plants with ammonium nitrate and humisol plus, carried out on seedlings and in the tillering phase, contributed to better plant growth and development, formation of productive tillering and yield structure elements, compared with fertilization in the phase of stem elongation as in the variant of fertilized background (N30P30K30), as in the variant without the using of mineral fertilizers. Key words: spring barley, mineral fertilizers, foliar fertilization of plants, elements of head structure, grain yield.
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Uzаkovich, Isokov Maksud, Alimov Rasulkhan Sarvarhanovich, Almatov Ilkhomjon Mirzabek Ugli, Somov Uliana Alexandrovna, and Baranova Anastasia Vasilievna. "Obtaining Humic Preparations From The Waste Of A Hydraulic Dump Of Coal Deposits As A Promising Waste-Free Technology." American Journal of Applied sciences 03, no. 07 (July 30, 2021): 1–8. http://dx.doi.org/10.37547/tajas/volume03issue07-01.
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Humic substances are the main organic component of soil and water, as well as solid fossil fuels. These important components are formed during the de-composition of plant and animal residues under the influence of abiotic envi-ronmental factors and as a result of the activity of microorganisms. In the future, humic substances are of great interest for medicine, veterinary medicine and plant protection as bioregulators, biostimulants and adaptogens, which deter-mine the normal functioning of various body systems. As a result of enrichment of coal from the Angren deposit, a large amount of waste accumulates, which negatively affects the ecological situation in the region and occupies large areas, in connection with which the question of their processing arises, in particular, to obtain humic preparations and bacterial fertilizers of prolonged action. The iso-lation of humic acids from the dumps was carried out with weak solutions of po-tassium and sodium hydroxides, and then precipitated from the obtained alka-line extracts by acidification with mineral acids to pH 2.0. In the residual cakes, the synthesis of humic acids was carried out by inoculation of an association of microorganisms BK 5 grown on rice flour. In the course of the research it has been found, that optimal separation of humic acid alkali consumption solvents NaOH or KOH is 8g per 100g of the crude product in a ratio of T:F = 1:5 at a temperature of 80° C for 30 minutes.
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W. MA. K. Teileb, Mourad, KH A. D. "Effect of Different Levels of Humic Acid and Mineral Fertilizers on Growth and Productivity of Sunflower." Journal of Plant Production Sciences 8, no. 1 (June 13, 2019): 11–18. http://dx.doi.org/10.21608/jpps.2019.59605.
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Iatsiuk, Illia, Yaroslav Hotskyi, Yaroslav Korniienko, and Andrii Stepaniuk. "Features of isothermal crystallization of ammonium sulphate." Proceedings of the NTUU “Igor Sikorsky KPI”. Series: Chemical engineering, ecology and resource saving, no. 2 (June 28, 2021): 33–43. http://dx.doi.org/10.20535/2617-9741.2.2021.235856.
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Soil fertility is rapidly decreasing due to irrational land use, erosion and soil pollution and adverse weather conditions. The use of composite granular organic-mineral fertilizers that contain mineral and organic components allows the soil fertility to be increased in the most effective and safe manner for the environment. In the production of granular composite fertilizers in a fluidized bed granulator, the process of isothermal mass crystallization is the main parameter that affects the quality.
The effect of impurities on the morphological structure of ammonium sulfate microcrystals during mass crystallization on the surface was investigated by means of microscopic analysis. The influence of temperature and pH of the solution on the structure and shape of the microcrystal layer was studied.
The process of mass crystallization depends on the presence of impurities, pH and temperature. Given the fact that there is no analytical or theoretical dependence describing the influence of impurities on the morphological structure, the influence is determined experimentally. The presence of even a small content of surfactants and other impurities in the ammonium sulfate solution has a significant effect on the morphological structure of ammonium sulfate microcrystals, which is revealed as reduction in the concentration of impurities in ammonium sulfate obtained by coke-chemical method. The pH level of the medium affects the structure and shape of microcrystals: smaller crystals with a layered structure are formed in the case of weakly alkaline medium with pH = 8 and smaller microcrystals with a granular structure are formed in the case of pH = 4. Therefore, it is important to maintain the required pH level of the medium during the mass crystallization of ammonium sulfate.
In isothermal mass crystallization of saturated aqueous solutions of ammonium sulfate with humic compounds and bone meal proceeding on a surface with temperature 90 °C, small elongated crystals with microcrystal sizes from 10 to 100 μm are formed. Impurities of bone meal and humic compounds in the form of inclusions are placed between the crystals of ammonium sulfate: namely, the endosegregation of impurities in the microcrystalline framework is observed. As the concentration of organic matter in the solution increases, which crystallizes as droplets on the surface, rubble and dendrites are formed outside the initial droplet placement. This phenomenon is explained by the increase of diffusion resistance at the center of the drop; as a result, ammonium sulfate crystallizes in the zone with lower resistance.
The process of isothermal mass crystallization of saturated aqueous solutions of ammonium sulfate with admixtures of humic compounds, bone meal and other target components in the specified ratios will create new highly effective fertilizers. The obtained results allow formulating theoretical bases for the formation of solid structures based on ammonium sulfate with admixtures of organic and mineral components.