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Academic literature on the topic 'Fertilizer Applications'

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Published: 7 September 2023

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Journal articles on the topic "Fertilizer Applications"

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HU, CHENG, SHUANG-LAI LI, YAN QIAO, DONG-HAI LIU, and YUN-FENG CHEN. "EFFECTS OF 30 YEARS REPEATED FERTILIZER APPLICATIONS ON SOIL PROPERTIES, MICROBES AND CROP YIELDS IN RICE–WHEAT CROPPING SYSTEMS." Experimental Agriculture 51, no. 3 (November 18, 2014): 355–69. http://dx.doi.org/10.1017/s0014479714000350.

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SUMMARYLong-term fertilization experiment has been conducted since 1981 to study the effect of soil management practices on soil fertility, soil carbon and nitrogen sequestration, soil culturable microbe counts and crop yields at the Nanhu Experimental Station in the Hubei Academy of Agricultural Sciences (situated in the middle reach of the Yangtze River and the rice–wheat cropping system). The experiment was designed with the following eight treatments: (1) unfertilized treatment: Control; (2) inorganic nitrogen fertilizer treatment: N; (3) inorganic nitrogen plus inorganic phosphorus fertilizer treatment: NP; (4) inorganic nitrogen, inorganic phosphorus plus inorganic potassium fertilizer treatment: NPK; (5) pig dung compost (manure) treatment: M; (6) inorganic nitrogen fertilizer plus manure: NM; (7) inorganic nitrogen, inorganic phosphorus fertilizer plus manure treatment: NPM and (8) inorganic nitrogen, inorganic phosphorus, inorganic potassium fertilizer plus manure treatment: NPKM. The results showed that long-term application of organic manure in combination with inorganic fertilizer significantly (p < 0.05) increased soil organic C concentrations compared with the corresponding inorganic fertilizers alone. Soil organic C contents were significantly (p < 0.05) increased in balanced application of NPK fertilizers in comparison to unbalanced application of fertilizers. After 30 years of experiment, soil organic C and total N sequestration rate averagely were 0.48 t ha−1 year−1 and 28.3 kg ha−1 year−1 in the fertilized treatments respectively; nevertheless, it were 0.27 t ha−1 year−1 and 9.7 kg ha−1 year−1 in the unfertilized treatment. Application of organic fertilizer in combination with inorganic fertilizer significantly (p < 0.05) increased culturable microbial counts compared with the corresponding inorganic fertilizers alone. The balanced application of NPK fertilizers significantly (p < 0.05) increased culturable microbial counts compared with unbalanced application of fertilizers. The average grain yield of wheat and rice was significantly (p < 0.05) higher in organic manure combined with inorganic fertilizer treatment than in inorganic fertilizer alone and unfertilized control. Therefore, long-term application of organic manure combined with inorganic fertilizer and balanced application of NPK fertilizers could increase soil organic C and total N sequestration, culturable microbial counts and crop grain yields.
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Eaton, L. J., K. R. Sanderson, and S. A. E. Fillmore. "Comparison of consecutive and alternate fertilizer applications in wild blueberry production." Canadian Journal of Plant Science 89, no. 1 (January 1, 2009): 93–98. http://dx.doi.org/10.4141/cjps08068.

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Research has shown that improved nutrient uptake and yield of wild blueberries (Vaccinium angustifolium Ait) are very sporadic when fertilizers are applied. Growers are concerned with environment impacts and keeping fertilizer costs to a minimum. Two experiments were conducted to evaluate the response of wild blueberries to soil-applied fertilization over four cropping cycles in Prince Edward Island and Nova Scotia from 1997 to 2004. Commercial fertilizers (17-17-17, 1-46-0 and 13-26-5) were soil-applied in the sprout year either as a consecutive fertilizer application (every cropping cycle) or an alternate fertilizer application (every second cropping cycle). All fertilizers were applied at a rate of 200 kg ha-1. Fertilizer applications increased soil levels of P and K, leaf tissue concentrations of N and P and stem lengths of plants. Higher levels of soil P and leaf tissue concentrations of N, P and K were observed with consecutive than with alternate fertilizer applications. Average stem lengths, buds and blossoms per stem were higher over the length of the study when fertilizers were applied consecutively compared with alternately. Fruit yields were increased compared with the unfertilized control. Within applied fertilizers treatments, fruit yield was not affected when fertilizer was applied in either consecutive or alternate cropping cycles. Alternate fertilizer applications may reduce soil accumulation of P and production costs without comprising yields. Key words: Cropping cycles, fertilization, soil and tissue nutrients, yield
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Yin, Dawei, Xiangyu Yang, Haize Wang, Xiaohong Guo, Shiqiang Wang, Zhihui Wang, Guohua Ding, et al. "Effects of chemical-based fertilizer replacement with biochar-based fertilizer on albic soil nutrient content and maize yield." Open Life Sciences 17, no. 1 (January 1, 2022): 517–28. http://dx.doi.org/10.1515/biol-2022-0057.

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Abstract Biochar-based fertilizers are used to improve soil’s physiochemical and biological properties and increase fertilizer utilization rate. Therefore, a technological model of biochar-based fertilizers is essential for the reduced application. This study was conducted to determine the effects of the different levels of biochar-based fertilizer applications on soil and plant nutrient content, as well as maize yield. Biochar-based fertilizer increased the total N content of maize stem and kernel and the total P content of maize axis and kernel. Biochar-based fertilizer increased the total P but decreased the total K of maize plants while increasing the fertilizer’s partial productivity. Treatment B1 (600.00 kg hm−2 of biochar-based fertilizer) increased the dry-matter weight of the maize at silking and filling stages by 1.60 and 15.83%. Treatment B1 increased the ear length, diameter, and plant height. Compared with BCK (600.00 kg hm−2 of conventional fertilizer), the yield of B1 was increased by 9.23%, and the difference was significant (p < 0.05). Biochar-based fertilizer treatments B2–B5 (biochar-based fertilizer reduced by 5–20%) reduced maize yield, but there was no significant difference between their yield and BCK. This study aimed to provide a basic understanding and reference for maize fertilizer reduction with good application prospects.
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Paparozzi, Ellen T., and Harlene M. Hatterman. "Fertilizer Applications on Field-grown Statice." HortScience 23, no. 1 (February 1988): 157–60. http://dx.doi.org/10.21273/hortsci.23.1.157.

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Abstract Three cultivars of annual statice (Limonium sinuatum mill, and L. bonduelli Kuntze) were grown in a fertile, silty clay loam field and fertilized with varying amounts of granular 12N–5.3P–10K. Mean individual stem weight, flower stem number, and mean and total fresh weight increased significantly due to fertilizer applications. Cultivar differences limited increases in rosette diameter, mean stem length, individual stem weight, and flower stem number. Field fertilizer application rates between 45.4 and 68.1 kg N/ha increased total fresh weight of ‘Iceberg’ and ‘Kampf's Blue’, but did not affect ‘Gold Coast’. Number of subsequent fertilizer applications beyond the initial application was not as critical as total amount applied.
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Wang, Manman, Youliang Ye, Xv Chu, Yanan Zhao, Shuhong Zhang, Hui Chen, Wei Qin, and Yang Wang. "Responses of Garlic Quality and Yields to Various Types and Rates of Potassium Fertilizer Applications." HortScience 57, no. 1 (January 2022): 72–80. http://dx.doi.org/10.21273/hortsci15984-21.

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Potassium (K) is a critical plant nutrient that determines quality in a myriad of crops and increases production yields. However, excessive application of various types of K fertilizers can decrease both the food quality and yields, which translates as economic losses and food safety issues. The objectives of this study were to 1) elucidate the impacts of different application rates of various K fertilizers on garlic, with the aim to identify the optimal and most economical K fertilizer dosage and 2) compare the effects of applying two common K fertilizers (KCl and K2SO4) on garlic, to determine the optimal combination. From 2018 to 2020, we utilized two distinct K-fertilized fields to conduct our experiments. The results revealed optimal KCl fertilization increased the biomass and vegetation index in garlic, and promoted the transfer of nitrogen, phosphorus, and potassium nutrients from the stem and leaf to bulb, thereby increasing bulb production. The application of KCl fertilizer increased the number of cloves, the diameters of the cloves and bulbs, and reduced variations in bulb size. In addition, the application of KCl fertilizer improved the nutritional quality (Vitamin C, soluble sugar, soluble protein, and allicin) of the garlic and reduced the accumulation of nitrate. However, excessive KCl fertilizer cause decreased yields, appearance traits, and nutritional quality. Applying the same rate of K fertilizer in the form of K2SO4 in isolation increased the garlic yield by only 0.1% to 22.5% when compared with KCl fertilizer. However, the results were not always significant. In this study, the highest yields, appearance traits, and nutritional quality were achieved with the ratio of K2SO4: KCl = 3:1. Consequently, to ensure the highest economic value (considering the market prices of K fertilizer, garlic sprouts, and bulbs), the authors recommend a K fertilizer rate of 252.5 kg·ha−1 K2O, with K2SO4 accounting for 61.6% for garlic production in field.
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Fahrurrozi, Zainal Muktamar, and Sigit Sudjatmiko. "Agronomic Responses of Sweet Corn - Peanut Intercropping to Liquid Organic Fertilizer Grown in Different Dosages of Vermicompost." AGRIVITA Journal of Agricultural Science 45, no. 2 (June 1, 2023): 220–30. http://dx.doi.org/10.17503/agrivita.v45i2.3902.

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Applying organic fertilizer and intercropping systems are among the techniques for preserving land sustainability in organic vegetable production systems. In organic vegetable production, the use of liquid organic fertilizer has been suggested in addition to the use of solid organic fertilizer. This study evaluates how growth and yields of sweet corn and peanuts grown utilizing row intercropping respond to different vermicomposting dosages. A factorial experiment is arranged using a split-plot design with three replicates. The main plot is vermicomposting dosages; 5, 10, 15, 20, and 25 Mg/ha, and the sub-plot was the applications of liquid organic fertilizer, not fertilized and fertilized with liquid organic fertilizer. Results show that the application of liquid organic fertilizer elevated plant height and leaf area, length, diameter, and weight of husked ears of sweet corn. Vermicomposting increased plant height, husked ear length, husked ear diameter, and husked ear fresh weight of sweet corn. Twenty Mg/ha is the best dosage for producing sweet corn intercropped with peanuts. However, using vermicompost and liquid organic fertilizers did not increase the growth and yields of peanuts. Evaluation of nutrient uptakes by intercropped crops, sweet corn, and peanut, in organic production systems, should be the subject of further study.
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Baghdadi, Ali, Ridzwan A. Halim, Ali Ghasemzadeh, Mohd Fauzi Ramlan, and Siti Zaharah Sakimin. "Impact of organic and inorganic fertilizers on the yield and quality of silage corn intercropped with soybean." PeerJ 6 (October 26, 2018): e5280. http://dx.doi.org/10.7717/peerj.5280.

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Background Corn silage is an important feed for intense ruminant production, but the growth of corn relies heavily on the use of chemical fertilizers. Sustainable crop production requires careful management of all nutrient sources available on a farm, particularly in corn-based cropping systems. Methods Experiments were conducted to determine the appropriate technique of corn-legume intercropping in conjunction with the supplemental use of chemical fertilizers, organic manure, and biofertilizers (BFs). Acetylene reduction assays (ARAs) were also performed on corn and soybean roots. Results Combining chemical fertilizers with chicken manure (CM) in a 50:50 ratio and applying 50% NPK+50% CM+BF produced fresh forage and dry matter (DM) yields that were similar to those produced in the 100% nitrogen (N), phosphorus (P), potassium (K) treatment. Among the lone fertilizer treatments, the inorganic fertilizer (100% NPK) treatment produced the highest DM yield (13.86 t/ha) of forage and outyielded the 100% CM (9.74 t/ha) treatment. However, when CM was combined with NPK, the resulting DM yield of forage (13.86 t/ha) was the same as that resulting from 100% NPK (13.68 t/ha). Compared with CM applications alone, combinations of NPK and CM applications resulted in increased plant height, crop growth rates (CGRs) and leaf area index (LAI), but the values of these parameters were similar to those resulting from 100% NPK application. Fertilizers in which the ratio was 50% CM+50% NPK or 50% CM+50% NPK+BF resulted in protein yields that were similar to those resulting from conventional fertilizers. Similarly, the CP content did not significantly differ between applications of the 100% NPK and 50% CM+50% NPK fertilizers. The use of BFs had no significant impact on improving either the yield or quality of forage fertilized with inorganic or organic fertilizer. Lactic acid responded differently to different fertilizer applications and was significantly higher in the fertilized plots than in the unfertilized plots. Compared with treatments of lone chemical and lone organic manure fertilizers, treatments involving applications of BF and a combination of BF and NPK or CM resulted in higher ARA values. Discussion There is no simple and easy approach to increase biological nitrogen fixation (BNF) in grain legumes grown as part of a cropping system under realistic farm field conditions. Overall, evidence recorded from this study proves that, compared with corn monocrops combined with CM and chemical fertilizers, corn-soybean intercrops could increase forage yields and quality, produce higher total protein yields, and reduce the need for protein supplements and chemical fertilizers.
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Negi, P., R. Thakur, K. Manral, K. Tomar, B. S. Rawat, B. Ramola, and Waseem Ahmad. "Coated Controlled-Release Fertilizers: Potential Solution for Sustainable Agriculture." Nature Environment and Pollution Technology 21, no. 4 (December 1, 2022): 1739–45. http://dx.doi.org/10.46488/nept.2022.v21i04.028.

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The use of fertilizer in the agricultural field is essential for plant growth but an excess amount of pure chemical contents in fertilizers becomes harmful to every living being. To reduce this chemical exposure, the use of materials coated with Controlled Release Fertilizers (CRFs) are being used. The coating of materials outside the fertilizer does not allow the chemicals to spread completely within one application of fertilizer but its spread can be extended as will be done in 2-3 applications of fertilizer. The features of the undercoating material are thus vital to attain this delayed or slow release of the nutrients present in the fertilizer. The longevity of CRFs depends upon the width of the material coating surrounding the fertilizer, temperature, and moisture. The review focuses on the consequences of conventional fertilizers, the need to control the release of fertilizers and types of coatings used, and their application in sustainable agriculture.
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Torres, Kenneth C. "Controlled-release Fertilizers Effect on the Growth of Bed-grown Woody Landscape Plants." HortScience 22, no. 6 (December 1987): 1330. http://dx.doi.org/10.21273/hortsci.22.6.1330.

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Abstract The effects of controlled-released fertilizers in container production have been evaluated (1,2), but little work has been reported on the effects of controlled-released fertilizers for field production techniques. Surface band and pre-plant fertilizer incorporation are the most common application methods for field-grown landscape plants. The major drawback of current field application methods are applications must be repeated every 4 to 6 months and a considerable amount of fertilizer is used inefficiently. The purpose of this research was to evaluate the effects of preplant applications of controlled-released fertilizers on the growth of field-grown landscape plants.
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Aslani, Maryam, and Mohammad Kazem Souri. "Growth and Quality of Green Bean (Phaseolus vulgaris L.) under Foliar Application of Organic-Chelate Fertilizers." Open Agriculture 3, no. 1 (May 1, 2018): 146–54. http://dx.doi.org/10.1515/opag-2018-0015.

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Abstract Organic-based chelate fertilizers can effectively improve nutrient uptake and use efficiency of plants. In the present study, foliar applications of three organic-chelate fertilizers on green bean (Phaseolus vulgaris L.) plants were compared to soil application of a mix chemical fertilizer (NPK) under greenhouse conditions. The treatments were foliar application (six sprays at 0.2% concentration) of Biomin, Humifolin, DelfonPlus, a mixture of micro and macronutrients, soil application of chemical fertilizer (NPK 0.5 g.kg-1 soil), and no fertilizer control. Foliar applications of organic-chelate fertilizers improved plant height, leaf area, shoot dry weight, leaf N and K concentration, pod number and pod yield compared to control plants. Pod soluble solids, vitamin C and total protein contents were significantly increased by foliar application of organic-chelate fertilizers. Soil applied NPK also improved green bean productivity compared to no fertilizer control. For most plant growth traits, there was no significant difference among the three organic-chelates. Foliar application of the macro- micro- nutrient mixture was not able to enhance the same growth, yield and pod quality traits like organic-chelates. Therefore, application of nutrient elements in form of organic-chelate and particularly by foliar application can guarantee better green bean plant performance.
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Dissertations / Theses on the topic "Fertilizer Applications"

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Stroehlein, Jack, Karen Kebler, and Paul Forrest. "Response of Guar to Fertilizer Applications." College of Agriculture, University of Arizona (Tucson, AZ), 1986. http://hdl.handle.net/10150/200554.

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Fertilizer studies were carried out with guar in the field and greenhouse over two seasons. Response to N was found in terms of plant growth and bean yield. With very low available soil P, fertilizer P increased the P concentration in guar plants but not bean yields. Zinc increased yields in the greenhouse only on the soil with the lowest available Zn.
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Silvertooth, J. C., G. W. Thacker, J. E. Malcuit, T. A. Doerge, and S. H. Husman. "Upland and Pima Cotton Response to Banded Fertilizer Applications, 1990." College of Agriculture, University of Arizona (Tucson, AZ), 1991. http://hdl.handle.net/10150/208629.

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Two field experiments were established in Arizona in 1990 to evaluate the effects of banded phosphorus (P) fertilizer on cotton. Experiments involved both Upland (Gossvpium ltirsutum, L.) and American Pima (Q. barbadense L.). Banded applications of P fertilizerwere made with placement of the concentrated band of fertilizer 6 in. below and 3-6 in. to the side of the zone of seed placement. The P₂O₅ was supplied from 10-34-0. Rates of applied P ranged from 0 to 160 lb P₂O₅ /acre. In one experiment, treatments consisting of 5 to 10 lbs. Zn/acre were included in all possible combinations with the P₂O₅ treatments. In all cases, treatments in the field were arranged in a randomized complete block design with four replications. Plant measurements for plant height, flower numbers per unit area, number of mainstem nodes, and nodes to the first fruiting branch were initiated by the fifth true leaf stage to evaluate plant response in terms of growth and development. Plant tissue samples were also taken at several stages of growth from each experiment throughout the growing season. Tissue samples consisted of petioles from the uppermost fully - developed leaves. Petioles were analyzed for extractable PO₄-P. Lint yield measurements also were taken. No statistically significant differences (P ≤ 0.05) were found among any treatments for any of the plant growth parameters. The same was true with regard to petiole PO₄-P levels measured. No significant differences were detected among Upland or Pima cotton lint yields in response to the applications of P fertilizers.
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Bhogal, Anne. "Effect of long-term nitrogen applications on nitrogen cycling under continuous wheat." Thesis, University of Nottingham, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.294731.

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Keene, Thomas Clarkson. "SWITCHGRASS YIELD AND QUALITY WITH MULTIPLE FERTILIZER APPLICATIONS AND HARVEST DATES." UKnowledge, 2014. http://uknowledge.uky.edu/pss_etds/42.

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Switchgrass (Panicum virgatum L.) is an important native warm-season grass for biomass and forage production in the U.S. This research determined the effect of fertilizer type (conventional, manure, and biosolids) and rate on switchgrass biomass yield and forage quality. Fertilizers were added at 0, 33, 67, 100, and 134 kg N ha-1 on established stands of ‘Kanlow’ switchgrass in three northeastern Kentucky counties. Soils across sites ranged from recently cleared forestland (low pH, P, and K) to productive cropland (high pH, P and K). Stands were sampled for forage nutritive value in June, simulating a hay harvest. Nutritive value and biomass yield were sampled in November and March. Results showed a harvest date effect for mean crude protein (CP) of 8.31% in June and 1.16% November and March. There was also a harvest effect for biomass with a mean yield of all harvests of 16.6 MT ha-1 but a N response at only one site. In conclusion, this study suggested that switchgrass may produce adequate nutritive value for dry beef cows in June and fertilizer type and rate may have a limited effect on biomass yields.
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Norton, E. R., L. J. Clark, and H. Borrego. "Evaluation of Variable Rate Fertilizer Applications in an Arizona Cotton Production System." College of Agriculture, University of Arizona (Tucson, AZ), 2005. http://hdl.handle.net/10150/198174.

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A project was initiated in the 2004 cotton (Gossypium hirsutum) growing season in an effort to accomplish two major objectives. The first was to continue with phosphorus (P) fertilization evaluations that have taken place in the Upper Gila River Valley for the past four seasons by continuing to document the effects of P fertilization on crop yield and fiber quality. The second objective was to investigate the feasibility of utilizing a Global Positioning Systems (GPS) and Geographic Information Systems (GIS) technology for making variable rate (VR) applications of P fertilizers based upon yield data from the previous cropping season. Yield maps from a cotton picker mounted yield monitoring system were collected from the 2003 growing season and used to develop prescription applications of P fertilizers in the 2004 season. The project was established with four treatments including a control (Treatment 1 - 0 P fertilizer applied); a VR application treatment (Treatment 2 - received 52 lbs P/acre on average); a high Uniform Rate (UR) application (Treatment 3 - 75 lbs P/acre); and a low UR application (Treatment 4 - 45 lbs P/acre). These treatments were arranged in a randomized complete block design with four replications. The size of each experimental unit was 0.7 acres. Lint yield results indicated a positive response to applied P fertilizers with treatments 2, 3, and 4 producing significantly higher yields than the control. Lint yield was not significantly affected by fertilizer application technique. Yield differences among the treatments receiving P fertilizer were minimal, particularly among treatments 2 and 3. However, it is important to note that the amount of P fertilizer used in treatment 2 was reduced by 27% with the use of the VR application technique. This produces an approximate $7/acre savings to the grower. This project will be continued in the 2005 growing season and will be expanded to investigate VR application technology in nitrogen (N) fertilization also.
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Weggler-Beaton, Karin M. "The beneficial and detrimental effects of sewage sludge applications in South Australia." Title page, contents and summary only, 1996. http://web4.library.adelaide.edu.au/theses/09PH/09phw4113.pdf.

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Tejos, Dante Pinochet. "The residual effect of applications of phosphate fertilizer measured by the Olsen method." Thesis, University of Reading, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.308579.

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Palumbo, John C. "Compatibility of Fertilizer and Neonicotinoid Soil Applications for Whitefly Control in Spring Cantaloupes." College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 2003. http://hdl.handle.net/10150/214963.

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Studies were conducted in the spring of 2001 and 2002 to evaluate the interaction between starter and side dress fertilizer mixes with neonicotinoid insecticides and their performance against whiteflies in spring cantaloupes in Yuma, AZ. No incompatibility was observed between the fertilizers and the Admire and Platinum mixtures applied at planting and side dress, and both insecticides provided comparable control of whitefly populations regardless of fertilizer used. However, based on our experience in 2001, we suggest that growers use a dilute mixture with the final applied volume to avoid any potential "clumping" problems in the mix tank. In some cases the addition of the DuneUp® starter fertilizer appeared to improve plant growth, but was probably more due to the unique mixture of NPK rather than the combination with the insecticides. Based on the results of these studies growers should not hesitate to apply either Admire or Platinum with starter and side dress fertilizers in melon crops.
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Torr, Leigh Christine. "Applications of dairy wastewater as a fertilizer to agricultural land : an environmental management perspective." Thesis, Stellenbosch : University of Stellenbosch, 2009. http://hdl.handle.net/10019.1/1641.

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Thesis (MSc (Geography and Environmental Studies))--University of Stellenbosch, 2009.
As with any form of intensive agriculture, there are potential environmental impacts associated with the management and housing of livestock on dairy farms. Within the field of dairy farming, particular focus falls to the issue of environmental degradation of water resources, as this form of pollution is currently a major environmental issue around the world. Conventional agricultural practices involving the application of chemical fertilizers to land and crops are causing environmental problems as a result of poor management practices. Dairy wastewater and manures could however be a valuable resource for agricultural producers in the form of an alternate fertilizer for their crops. Waste application as a fertilizer is more environmentally friendly than chemical fertilizers, and could drastically reduce costs for farmers, whilst alleviating storage and management problems often associated with farmyard manures (FYM). The application of organic wastes, notably livestock manures, to land has historically been important for maintaining soil fertility on farms in terms of nutrient status and organic matter levels, as well as helping to reduce soil erosion and improve waterholding capacity. The research sought to investigate the environmental and economical feasibility of using dairy wastewater and manures as an alternative form of fertilizer within agriculture in South Africa.
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Sun, Yajie [Verfasser]. "Uranium accumulation in agricultural soils as derived from long-term phosphorus fertilizer applications / Yajie Sun." Bonn : Universitäts- und Landesbibliothek Bonn, 2021. http://d-nb.info/1230878572/34.

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Books on the topic "Fertilizer Applications"

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Mosheh, Seneh, Sapir Elimelech, and Israel. Miśrad ha-ḥaḳlaʼut. Agaf sherut ha-śadeh., eds. Dishun be-hashḳayah. 2nd ed. [Israel]: Miśrad ha-ḥaḳlaʼut, Sherut ha-hadrakhah ṿeha-miḳtsoʻa, Agaf sherut ha-śadeh, 1988.

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Huang, Wen-Yuan. Timing nitrogen fertilizer applications to improve water quality. Washington, DC: U.S. Dept. of Agriculture, Economic Research Service, Resources and Technology Division, 1994.

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Garry, Massey, Lesotho Agricultural Production and Institutional Support Project., and Lesotho Agricultural Research Division, eds. Manure and fertilizer applications to three crops in Lesotho, 1987-1991. Maseru, Lesotho: Agricultural Information Services, Ministry of Agriculture, Cooperatives, and Marketing, 1991.

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Alberta. Alberta Agriculture. Statistics Branch. and Alberta. Farm Business Business Management Branch., eds. Custom rates survey: Fertilizer and herbicide applications and grain seeding, 1985. [Edmonton, Alta.]: Alberta Agriculture, Statistics Branch, 1985.

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Loyd, Thomas Britt. The applications and market potential for agricultural limestone in Arkansas. [Little Rock, Ark.]: Division of Business Studies, Research and Public Service, University of Arkansas at Little Rock, 1987.

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Zoltán, Csizmazia. Röpítőtárcsás műtrágyaszóró szerkezet fejlesztése. Budapest: Akadémiai Kiadó, 1986.

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Cogger, Craig George. Worksheet for calculating biosolids application rates in agriculture. [Pullman, Wash.]: Washington State University Cooperative Extension, 1999.

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John, Beebe, and Pacific Northwest Research Station (Portland, Or.), eds. Effect of fertilizer applications and grazing exclusion on species composition and biomass in wet meadow restoration in eastern Washington. [Portland, Or.]: U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station, 2002.

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Nakagawa, Charles H. Chinese biogas digester: A potential model for small-scale, rural applications : a manual for construction and operation. Washington, D.C: Peace Corps Information Collection and Exchange, 1985.

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Simpson, G. Scott. Estimating fertilizer application costs. Muscle Shoals, Ala: Marketing and Distribution Economics Section, National Fertilizer Development Center, Tennessee Valley Authority, 1985.

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Book chapters on the topic "Fertilizer Applications"

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Bell, Michael J., Antonio P. Mallarino, Jeff Volenec, Sylvie Brouder, and David W. Franzen. "Considerations for Selecting Potassium Placement Methods in Soil." In Improving Potassium Recommendations for Agricultural Crops, 341–62. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-59197-7_12.

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AbstractPlacement strategies can be a key determinant of efficient use of applied fertilizer potassium (K), given the relative immobility of K in all except the lightest textured soils or high rainfall environments. Limitations to K accessibility by plants caused by immobility in the soil are further compounded by the general lack of K-stimulated root proliferation in localized soil zones enriched with K alone, compared with root proliferation due to concentrated N and P. Further, effects of K fixation reactions in soils with certain clay mineralogies and the declining concentration and activity of soil solution K with increasing clay content can also limit plant K acquisition. Variation in root system characteristics among crops in a rotation sequence and fluctuating soil moisture conditions in fertilized soil horizons in rain-fed systems increase the complexity of fertilizer placement decisions to ensure efficient K recovery and use. This complexity has resulted in extensive exploration of fertilizer K application strategies, with this chapter focusing on K applications to the soil. Issues discussed include comparisons of broadcast versus banded applications, depth of fertilizer placement, and the impacts of co-location of K with other nutrients. While research findings are often specific to the crop, soil, and seasonal conditions under which they are conducted, we attempt to identify strategies that most consistently deliver improved crop recovery and utilization of fertilizer K.
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Martens, D. C., and D. T. Westermann. "Fertilizer Applications for Correcting Micronutrient Deficiencies." In Micronutrients in Agriculture, 549–92. Madison, WI, USA: Soil Science Society of America, 2018. http://dx.doi.org/10.2136/sssabookser4.2ed.c15.

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Das, Probir, Shoyeb Khan, Afeefa Kiran Chaudhary, Mohammad AbdulQuadir, Mehmoud Ibrahim Thaher, and Hareb Al-Jabri. "Potential Applications of Algae-Based Bio-fertilizer." In Biofertilizers for Sustainable Agriculture and Environment, 41–65. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-18933-4_3.

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Mischke, Charles C. "Management Strategy 3: Fixed-Rate Fertilizer Applications." In Aquaculture Pond Fertilization, 129–34. Oxford, UK: Wiley-Blackwell, 2012. http://dx.doi.org/10.1002/9781118329443.ch9.

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Javeed, Hafiz Muhammad Rashad, Mazhar Ali, Rafi Qamar, Fahim Nawaz, Humaira Yasmin, Koushik Chakraborty, Zainul Abideen, Muhammad Zahid Ihsan, and Muhammad Adnan Bukhari. "Potential Applications of Algae-based Bio-fertilizer." In Biofertilizers for Sustainable Soil Management, 185–96. Boca Raton: CRC Press, 2023. http://dx.doi.org/10.1201/9781003286233-10.

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França, Débora, Lucas Luiz Messa, Claudinei Fonseca Souza, and Roselena Faez. "Nano and Microencapsulated Nutrients for Enhanced Efficiency Fertilizer." In Polymers for Agri-Food Applications, 29–44. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-19416-1_3.

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Dash, R. N., K. S. Rao, and S. K. Nayak. "Optimization of nitrogen fertilizer application to irrigated rice." In Applications of Systems Approaches at the Field Level, 259–70. Dordrecht: Springer Netherlands, 1997. http://dx.doi.org/10.1007/978-94-017-0754-1_18.

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Davenport, Joan R., Mary J. Hattendorf, Robert G. Evans, Shufeng Han, and Sally M. Schneider. "Phosphorus Fertilizer Management Strategies for Variable Rate Fertilizer Applications in Center Pivot Irrigated Potato Rotations." In Proceedings of the Fourth International Conference on Precision Agriculture, 745–52. Madison, WI, USA: American Society of Agronomy, Crop Science Society of America, Soil Science Society of America, 2015. http://dx.doi.org/10.2134/1999.precisionagproc4.c71.

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Burrows, William C., and Orvis P. Engelstad. "Energy of Phosphate Fertilizer Applications and Food Energy Returns." In The Role of Phosphorus in Agriculture, 251–62. Madison, WI, USA: American Society of Agronomy, Crop Science Society of America, Soil Science Society of America, 2015. http://dx.doi.org/10.2134/1980.roleofphosphorus.c11.

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da Motta Junior, Rodrigo Lima, Edson Márcio Mattiello, Patrícia Cardoso Matias, Fabiane Carvalho Ballotin, Gustavo Emílio Soares de Lima, Leonardo Gonçalves Pedroti, Jéferson Silveira Martins, and Luiz Brandão. "Analysis of Potential Applications of Kamafugite Rocks in Fertilizer." In Characterization of Minerals, Metals, and Materials 2021, 233–40. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-65493-1_22.

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Conference papers on the topic "Fertilizer Applications"

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Simion, Demetra, Carmen Gaidău, Mariana Daniela Berechet, Maria Stanca, Cosmin Alexe, and Gabriela Păun. "The Influence of Surfactants in Obtaining New Byproducts, for Agriculture Applications." In The 9th International Conference on Advanced Materials and Systems. INCDTP - Leather and Footwear Research Institute (ICPI), Bucharest, Romania, 2022. http://dx.doi.org/10.24264/icams-2022.ii.24.

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The aim of the paper is to obtain new byproducts based on surfactants (gemini – polymethylene-α, ω-bis (N, N-dialkyl-N-deoxy-d-glucitolammonium iodides or bolaform – demecarium bromide) and protein hydrolysates (keratin and collagen) with micro and macro nutrients for applications in agriculture. A method was developed to include micro and macronutrients in keratin and collagen hydrolysates, in order to obtain new byproducts-bioemulsions (stable because of surfactants), with final goal of application as a new class of root fertilizers for cereals (e.g., corn). The newly obtained byproducts (bioemulsions based on surfactants) were characterized by: dynamic light scattering measurements, contact angle, optical microscopy and microbiological tests against fungal attack of Fusarium spp. and Botrytis cinerea. Better results were obtained for gemini surfactant based on sugar – polymethylene-α, ω-bis (N, N-dialkyl-N-deoxy-d-glucitolammonium iodides) due to the properties such as: biodegradability, nontoxicity and adherence to surfaces. The new fertilizer created in this research – bioemulsions based on surfactants, can support the general structure of the grains as well as the chlorophyll content, increasing the growth yield. The fertilizer is indicated for any type of crops and soils, with recommended use as additional fertilizer for plants (cereals) in the vegetation and growth phases, with a maximum need for nutrients.
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David M. Crohn. "Optimizing Fertilizer Applications for Organic Agriculture." In 2006 Portland, Oregon, July 9-12, 2006. St. Joseph, MI: American Society of Agricultural and Biological Engineers, 2006. http://dx.doi.org/10.13031/2013.21208.

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Aninkan, Anjola S., and Eyitayo A. Makinde. "Fertilizer Rate for Optimum Growth and Yield of Egusi Melon (ColocynthiscitrullusL.)/ Hot Pepper (Capsicum chinense, Jackquin cv. rodo) Intercrop." In International Students Science Congress. Izmir International Guest Student Association, 2021. http://dx.doi.org/10.52460/issc.2021.005.

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The use of chemical fertilizers as a supplemental source of nutrients has been on the increase but they are not applied in balanced proportion by most farmers [1]. Also, fertilizer requirements of the mixed intercropping systems have been a matter of conjecture; some studies had suggested that fertilizer requirements of the dominant component be applied [2], others recommend that the sum of the sole crop requirements, be applied [3]. Teriah [4], however, stated that both practices have proved either inadequate or wasteful. In this experiment the effects of different rates of NPK 15-15-15 fertilizer application on growth and yield of hot pepper and Egusi melon in an intercropping system was examined to determine optimum rate for production. The experiment was carried out at the Teaching and Research Farm of the Federal University of Agriculture Abeokuta, in the south western part of Nigeria. It took place from March to October 2017 during the growing season. The experiment was laid out in a Randomized Complete Block Design (RCBD) with 5 treatments (fertilizer rates) and 3 replicates. Treatments were; 0, 100, 200, 300 and 400 kg/ha of NPK 15-15-15 applications. Plot size was 3m by 3m with a 1.5m gang way round each plot to reduce inter-plot effect. Data were collected on growth parameters at 6 weeks after treatment (WAT) and continued at two-week intervals until 10 WAT. Four plants each of pepper and Egusi melon from the inner rows were randomly selected and tagged for the purpose of data collection. Data on yield were also collected at ripening. Analysis of variance (ANOVA) was carried out on each observation and the Least Significant Difference (LSD) was used for means separation (P≤0.05). The effects of fertilizer rates showed significant difference on pepper plant height, number of leaves, number of branches and leaf area. However, there was no significant difference in the effect of fertilizer rate on days to 50% flowering of pepper. Number of vines and vine length of Egusi melon were significantly different in their responses to fertilizer rates but the leaf area and days to 50% flowering of melon were similar at the various treatment levels. Meanwhile, total fruit yield of pepper, number of Egusi melon pods per hectare and the dry matter yield of Egusi melon showed significant difference. It was concluded from the study that the growth and yield of pepper and Egusi melon in intercrop increased with increase in fertilizer rate up to 400Kg/ha of NPK (15:15:15). However, higher fertilizer application rates should be explored in future studies for a better yield increase. These studies should be carried out with various compositions of inorganic and organic fertilizer application rates to ensure sustainable fertilizer application and to also preserve the natural fertility of the soil.
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William M. Miller, A. Schumann, and S. Buchanon, and Sr. "VRT Citrus Test Plot Applications of Granular Fertilizer." In 2003, Las Vegas, NV July 27-30, 2003. St. Joseph, MI: American Society of Agricultural and Biological Engineers, 2003. http://dx.doi.org/10.13031/2013.15022.

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Yuliartini, Made Sri, Luh Kartini, and Kadek Satriawan. "Increasing the Ocra’s Yield by Organic Fertilizer Applications." In Proceedings of the 1st Warmadewa Research and Development Seminar (WARDS),30 October 2018, Denpasar-Bali, Indonesia. EAI, 2019. http://dx.doi.org/10.4108/eai.30-10-2018.2281461.

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Zornić, Vladimir, Mirjana Petrović, Snežana Anđelković, Snežana Babić, Dejan Sokolović, Zoran Lugić, and Jordan Marković. "UTICAJ MINERALNIH ĐUBRIVA NA FLORISTIČKI SASTAV I PRINOS TRAVNE ZAJEDNICE „FESTUCO-NARDETUM STRICTAE SUBALPINUM“." In XXVII savetovanje o biotehnologiji. University of Kragujevac, Faculty of Agronomy, 2022. http://dx.doi.org/10.46793/sbt27.137z.

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This study was aimed to investigate influence of different doses of mineral fertilizers addition on grassland community type Festuco-Nardetum strictae subalpinum. In the course of the study influence of the following fertilized treatments: control, N60P60K60; N90P60K60; N120P60K60 on floristic composition and dry matter yield was investigated. The obtained results suggested that grasses percent increased, while forbs percent decreased in all fertilizer treatments. Grassland quality index and dry matter yield were increased by application of mineral fertilizers in both years of study.
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Ramli, Roshahliza M., Mortaza Mohamed, and Nasrul Rahman Abdullah. "Smart Fertilizer Mixer System for Fertigation." In 2022 IEEE 8th International Conference on Smart Instrumentation, Measurement and Applications (ICSIMA). IEEE, 2022. http://dx.doi.org/10.1109/icsima55652.2022.9928966.

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Raviraja, S., Raghavender K. V, Prashant Sunagar, R. K. Ragavapriya, M. Jogendra Kumar, and Bharath V. G. "Machine Learning based Mobile Applications for Autonomous Fertilizer Suggestion." In 2022 4th International Conference on Inventive Research in Computing Applications (ICIRCA). IEEE, 2022. http://dx.doi.org/10.1109/icirca54612.2022.9985721.

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Traversi, Nelson de F., Douglas A. Goulart, Julio Cezar O. Mendonca, Silvia S. C. Botelho, Luciane B. Soares, Emanuel S. D. Estrada, Paulo L. J. Drews, and Vinicius M. Oliveira. "VBM granulometry for real applications in the fertilizer industry." In 2021 Latin American Robotics Symposium (LARS), 2021 Brazilian Symposium on Robotics (SBR), and 2021 Workshop on Robotics in Education (WRE). IEEE, 2021. http://dx.doi.org/10.1109/lars/sbr/wre54079.2021.9605389.

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Li, Hung-Hsin, Sheng-Chih Yang, Jyun-Jie Wang, Chi-Yuan Lin, and Zong-Shang Hong. "IoT Liquid Fertilizer Cooling Control System Designed for Agricultural Applications." In 2023 Sixth International Symposium on Computer, Consumer and Control (IS3C). IEEE, 2023. http://dx.doi.org/10.1109/is3c57901.2023.00026.

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Reports on the topic "Fertilizer Applications"

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Abay, Kibrom A., Mehari Hiluf Abay, Mulubrhan Amare, Guush Berhane, and Ermias Betemariam. Mismatch between soil nutrient requirements and fertilizer applications: Implications for yield responses in Ethiopia. Washington, DC: International Food Policy Research Institute, 2021. http://dx.doi.org/10.2499/p15738coll2.134449.

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Beebe, John, Richard Everett, George Scherer, and Carl Davis. Effect of fertilizer applications and grazing exclusion on species composition and biomass in wet meadow restoration in eastern Washington. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station, 2002. http://dx.doi.org/10.2737/pnw-rp-542.

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Eastwood, A. Process Improvement Study of the Rock Springs Fertilizer Complex for Chevron Chemical Company, Rock Springs, WY [Advanced Industrial Heat Pump Applications and Evaluations]. Office of Scientific and Technical Information (OSTI), December 1989. http://dx.doi.org/10.2172/834787.

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Maguire, Rory, Mark Alley, and Webb Flowers. Fertilizer Types and Calculating Application Rates. Blacksburg, VA: Virginia Cooperative Extension, August 2019. http://dx.doi.org/10.21061/424-035.

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Sawyer, John E., and Daniel W. Barker. Sulfur Fertilizer Application to Corn and Soybean. Ames: Iowa State University, Digital Repository, 2002. http://dx.doi.org/10.31274/farmprogressreports-180814-1003.

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Sawyer, John E., and Daniel W. Barker. Sulfur Fertilizer Application to Corn and Soybean. Ames: Iowa State University, Digital Repository, 2002. http://dx.doi.org/10.31274/farmprogressreports-180814-1508.

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Sawyer, John E., and Daniel W. Barker. Sulfur Fertilizer Application to Corn and Soybean. Ames: Iowa State University, Digital Repository, 2009. http://dx.doi.org/10.31274/farmprogressreports-180814-1517.

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Sawyer, John E., and Daniel W. Barker. Sulfur Fertilizer Application to Corn and Soybean. Ames: Iowa State University, Digital Repository, 2001. http://dx.doi.org/10.31274/farmprogressreports-180814-1518.

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Sawyer, John E., and Daniel W. Barker. Sulfur Fertilizer Application to Corn and Soybean. Ames: Iowa State University, Digital Repository, 2001. http://dx.doi.org/10.31274/farmprogressreports-180814-1529.

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Sawyer, John E., and Daniel W. Barker. Sulfur Fertilizer Application to Corn and Soybean. Ames: Iowa State University, Digital Repository, 2002. http://dx.doi.org/10.31274/farmprogressreports-180814-1535.

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