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SOPER, R. J., G. W. MORDEN, and M. W. HEDAYAT. "THE EFFECT OF ZINC RATE AND PLACEMENT ON YIELD AND ZINC UTILIZATION BY BLACKBEAN (Phaseolus vulgaris var. Black Turtle)." Canadian Journal of Soil Science 69, no. 2 (May 1, 1989): 367–72. http://dx.doi.org/10.4141/cjss89-036.
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Growth chamber experiments were conducted to investigate the effect of size of fertilizer reaction zone, rate of added zinc and method of placement of added zinc on the dry matter yield, zinc concentration and zinc uptake of blackbeans grown on a calcareous soil. Relationships between zinc concentrations in the plant, zinc utilization by the plant and zinc concentration in the soil reaction zone were obtained. An equation was developed relating zinc utilization to zinc concentration in the fertilizer band, and a figure was derived showing how increasing the size of the fertilizer zone impacts upon the zinc concentration of the plant. The results indicate that inorganic zinc fertilizers must be mixed as uniformly as possible for maximum effectiveness. Key words: Zinc, placement, calcareous, soil, blackbean, Phaseolis vulgaris
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Islam, GMM, SK Tarafder, ABMM Hasan, SMA Iqbal, and H. Mamtaz. "A comparative study on zinc fertilizer brands available in the markets of Jessore region." International Journal of Agricultural Research, Innovation and Technology 7, no. 2 (January 13, 2018): 57–62. http://dx.doi.org/10.3329/ijarit.v7i2.35323.
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A study was conducted in Monirampur upazila under Jessore district from July to December, 2016 to collect information on names, numbers and comparative availability of different brands of Zinc fertilizers in order to aid the assessment of nutrient status for quality of the brands. For this purpose, information was collected from 54 randomly selected fertilizer shops (20 BCIC fertilizer dealers and 34 retailers) through questionnaire interview. In the study total 77 brands [41 Zinc sulfate (mono), 11 Zinc sulfate (hepta) and 25 Chelated zinc] of zinc fertilizer marketed by 49 companies were found in the upazila. Zingsul, Mim zinc, Grogin, Bumper mono zinc, Eon zinc and Geel mono of Zinc sulfate (mono) brands, Topaz of Zinc sulfate (hepta) brands and Mim zinc gold of Chelated zinc brands were mostly available. “Grogin” of Zinc sulfate (mono) and “Topaz” of Zinc sulfate (hepta) were the top most available. Ten percent of Zinc sulfate (hepta) mentioned no registration number. There was a significant difference between highest and lowest MRP of all types (imported, supplied and manufactured) of Zinc sulfate (mono) and Zinc sulfate (hepta) fertilizer as well as imported Chelated zinc brands.Int. J. Agril. Res. Innov. & Tech. 7 (2): 57-62, December, 2017
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Vattani, Hesam, Naser Vafaee, Alireza Ladan Moghadam, and Narges Keshavarz. "Research and Comparison of Different Levels of Fertilizer Nano Zinc Chelates and Zinc Sulfate and Its Effect on the Growth Parameters of Parsley (Petroselinum crispum L.)." European Journal of Agriculture and Food Sciences 3, no. 1 (January 13, 2021): 23–27. http://dx.doi.org/10.24018/ejfood.2021.3.1.220.
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Parsley is a biennial plant from the Apiaceae family that is used in the food, pharmaceutical, perfume and cosmetic industries. This plant has various mineral such as Fe and vitamins including A, B and C and grown in most parts of the world. Nano-fertilizers are a good alternative to sulfated fertilizers due to their higher solubility and gradual release of particles than conventional fertilizers. In order to investigate the effect of foliar application zinc on growth and yield of parsley, an experiment based on randomized complete blocks with 6 treatments and three replications was performed in the experimental field of Imam Khomeini Higher Agricultural Education Center. Treatments included foliar application of Nano zinc chelate fertilizer (0.5, 1 and 1.5 g/L) and zinc sulfate (1 and 1.5 g/L). The foliar application was performed in 4 to 6 leaf stage and repeated every 14 days till before harvesting. Number of leaves, plant height, leaf area, leaf length and width, fresh and dry weight of leaves and stems were measured. The results showed that the highest amount of the mentioned traits was obtained in the foliar application of 1.5 g/L Nano zinc chelate fertilizer and the lowest values were obtained at the control treatment. It is noteworthy that there is no significant difference between 1 and 1.5 g/L Nano zinc chelate fertilizer in terms fresh and dry weight of leaves and stems and both treatments are statistically in the same group. Therefore, foliar application of 1 g/L Nano zinc chelate fertilizer is economically recommended.
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Islam, GMM, SMA Iqbal, MRA Mollah, SS Hossain, and MA Ali Chowdhury. "A Study on Different Brands of Zinc Fertilizers Available in the Markets of Chuadanga Region." Journal of Environmental Science and Natural Resources 8, no. 2 (February 29, 2016): 103–7. http://dx.doi.org/10.3329/jesnr.v8i2.26875.
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A study was conducted in Damurhuda upazila under Chuadanga district from January to December, 2014 to collect information on names, numbers and comparative availability of different brands of Zinc fertilizers in order to aid the assessment of nutrient status for quality of the brands. For this purpose, information was collected from 30 randomly selected fertilizer shops (10 BCIC fertilizer dealers and 20 retailers) through questionnaire interview. In the study total 80 brands [41 Zinc sulfate (mono), 22 Zinc sulfate (hepta) and 17 Chelated zinc] of zinc fertilizer marketed by 51 companies were found in the upazila. Grogin, Topaz, Zinc Sulfate, Mukta Plus, Zingsul, Hay Zinc+ of Zinc sulfate (mono) brands, Topaz and Petro zinc of Zinc sulfate (hepta) brands and Brexil, Field Marshal, Topaz of Chelated zinc brands were most available. Grogin of Zinc sulfate (mono) and Topaz of Zinc sulfate (hepta) were the top most available. Five percent of Zinc sulfate (mono) and nine percent of Zinc sulfate (hepta) mentioned no registration number. No maximum retail price (MRP) was mentioned in seven percent of Zinc sulfate (mono). There was a significant difference between highest and lowest MRP of imported Zinc sulfate (mono) and Chelated zinc brands.J. Environ. Sci. & Natural Resources, 8(2): 103-107 2015
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KHEIRIZADEH AROUGH, Younes, Raouf SEYED SHARIFI, Mohammad SEDGHI, and Morteza BARMAKI. "Effect of Zinc and Bio Fertilizers on Antioxidant Enzymes Activity, Chlorophyll Content, Soluble Sugars and Proline in Triticale Under Salinity Condition." Notulae Botanicae Horti Agrobotanici Cluj-Napoca 44, no. 1 (June 14, 2016): 116–24. http://dx.doi.org/10.15835/nbha44110224.
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In order to study the effects of bio fertilizers and zinc fertilizer on antioxidant enzymes activity, chlorophyll content, soluble sugars and proline in triticale under salinity condition, a factorial experiment was conducted based on randomized complete block design with three replications under greenhouse condition. Experiment factors were included salinity in four levels [no-salt (control or S0), salinity 20 (S1), 40 (S2) and 60 (S3) mM NaCl) equivalent of 1.85, 3.7 and 5.55 dS m−1 respectively], four bio fertilizers levels (no bio fertilizer (F0), application of mycorrhiza (F1), PGPR (F2), both application PGPR and mycorrhiza (F3) and three nano zinc oxide levels (without nano zinc oxide as control (Zn0), application of 0.4 (Zn1) and 0.8 (Zn2) g lit-1). Results showed that salinity severe stress (60 mM) decreased chlorophyll a, chlorophyll b, total chlorophyll, carotenoid and grain yield of triticale, whereas soluble sugars and proline content, the activities of Catalase (CAT), Peroxidase (POD) Polyphenol Oxidase (PPO) enzymes increased. Results showed that both application of bio fertilizer and 0.8 g lit-1 nano zinc oxide (F3Zn2) increased about 39% from grain yield in comparison with F0Zn0 under the highest salinity level. Based on the results, it was concluded that bio fertilizers and nano zinc oxide application can be recommended for profitable triticale production under salinity condition.
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Razanov, S., S. Tkachyk, and A. Razanova. "The intensity of heavy metals accumulation by the milk thistle leaf mass under its fertilization with the latest fertilizers." Agrobìologìâ, no. 2(161) (November 24, 2020): 160–67. http://dx.doi.org/10.33245/2310-9270-2020-161-2-160-167.
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The aim of the research is to study the intensity of heavy metals accumulation in milk thistle leaf mass under fertilization with the latest types of fertilizers and to assess the environmental safety of such raw materials. Two experiments were laid in the research: the effect of fertilizing milk thistle with organo-mineral fertilizer Growth-concentrate on the intensity heavy metals accumulation by its leaf mass; the effect of fertilizing milk thistle with chelated fertilizers Phosphorus-chelate and Potassium-chelate on the intensity on heavy metals accumulation by the leaf mass. The use of a chelated Phosphorus chelate fertilizer for the fertilization of milk thistle crops leads to a 1.1 times decrease in the contamination of its leaf mass with cadmium and copper in comparison with the option without fertilizing its crops, and the increase in the concentration of lead and zinc compared to the control is insignificant and is within the range errors of experience. The use of fertilization of crops of milk thistle chelated fertilizer Potassium-chelate helps to reduce the contamination of its leaf mass with cadmium compared to the control, and the change in its contamination with copper is within the margin of error. At the same time, replacing the Growth-concentrate fertilizer with Phosphorus-chelate or Potassium-chelate when fertilizing milk thistle crops will lead to a decrease in the contamination of its leaf mass with lead, cadmium and copper, but will increase the contamination with zinc, compared to the control. The most environmentally safe leaf raw material of milk thistle in terms of lead, cadmium and copper content will be observed when fertilizing its crops with chelated fertilizers Phosphorus-chelate, and in terms of zinc content – when fertilizing with organo-mineral fertilizer Growth-concentrate. It is advisable to use Phosphorus-chelate fertilizer for the plant fertilization to reduce the contamination of the leaf mass of the medicinal raw material of milk thistle with heavy metals, in particular cadmium – by 9 % and copper – by 11 %,. To reduce contamination of the leaf mass with zinc by 81 %, it is recommended to use the organic-mineral fertilizer Growth-concentrate. Key words: milk thistle, medicinal raw materials, environmental safety, heavy metals, pollution, fertilizers.
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JANMOHAMMADI, Mohsen, Tahereh AMANZADEH, Naser SABAGHNIA, and Shahryar DASHTI. "Impact of foliar application of nano micronutrient fertilizers and titanium dioxide nanoparticles on the growth and yield components of barley under supplemental irrigation." Acta agriculturae Slovenica 107, no. 2 (October 26, 2016): 265. http://dx.doi.org/10.14720/aas.2016.107.2.01.
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Nano-fertilizers are new generation of the synthetic<em> </em>fertilizers which contain readily available nutrients in nano scale range. Nano fertilizers are preferred largely due to their efficiency and environment friendly nature compared to conventional<em> </em>chemical<em> </em>fertilizers. To evaluate the effects of foliar spray<em> </em>of micronutrient nano-fertilizer (iron and zinc) and nano-titanium dioxide (nTiO<sub>2</sub>) solution on grain yield and its components in barley under supplemental<em> </em>irrigation conditions, a field experiment was carried out in the semi-arid highland region of Maragheh, Iran. Barley plants were separately treated with of chelated nano-scale zinc oxide (ZnO) and ferric oxide (Fe<sub>2</sub>O<sub>3</sub>) suspensions during tillering stage, booting and milky stages. Results revealed that days to<em> </em>anthesis and maturity significantly increased after application of both nano-fertilizers. Furthermore<em>,</em> a considerable improvement was observed in grain mass, spike length, number of the grains per spike, chlorophyll content, grain yield and harvest index by application of nano-fertilizer. However the impact of nano zinc fertilizer was more prominent than iron. Foliar application of nTiO<sub>2</sub> positively affected some morphophysiological characteristics like as days to<em> </em>anthesis, chlorophyll content and straw yield. The results suggest that the delivery of Zn into barley seedling through spray of nano-fertilizer can be an efficient nutrient management strategy in semi-arid regions. Overall, our result indicated that the integration of nanotechnology in fertilizer products can improve fertilizer use efficiency and significantly increase of barley yield. However, plant response to nanoparticles significantly depend on concentration and time of application as well as size, shape, and surface functionalization of the particles.
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Sarkar, A. K., and D. L. Deb. "Fate of fertilizer zinc in a black soil (Vertisol)." Journal of Agricultural Science 104, no. 1 (February 1985): 249–51. http://dx.doi.org/10.1017/s0021859600043227.
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Rice is the major food crop grown on black soils of southern India and these soils have problems of high zinc fixation due to high clay content, high pH and dominance of smectite minerals causing zinc deficiency problems. The addition of zinc fertilizers to these soils has often been ineffective as the element is transformed to unavailable forms particularly under flooded rice conditions. Studies on the distribution of fertilizer zinc among different pools of soil zinc (Viets, 1962) could be useful in formulating methods of zinc application for higher efficiency of utilization. An attempt was therefore made to study the transformations of added zinc in soils in field experiments conducted in a rice-rice sequence involving the use of 65Zn as a tracer.
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Fu, Xing-Zheng, Fei Xing, Li Cao, Chang-Pin Chun, Li-Li Ling, Cai-Lun Jiang, and Liang-Zhi Peng. "Effects of Foliar Application of Various Zinc Fertilizers with Organosilicone on Correcting Citrus Zinc Deficiency." HortScience 51, no. 4 (April 2016): 422–26. http://dx.doi.org/10.21273/hortsci.51.4.422.
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To compare the effects of various zinc (Zn) foliar fertilizers on correcting citrus Zn deficiency and to explore an effective correcting method, three common Zn fertilizers, Zn sulfate heptahydrate (ZnSO4.7H2O), Zn chloride (ZnCl2), and Zn nitrate hexahydrate [Zn(NO3)2.6H2O], were selected to spray the Zn-deficient citrus leaves, tested at different concentrations, with or without organosilicone surfactant. Zn content, chlorophyll levels, and photosynthesis characteristics of leaves were analyzed. Leaf Zn content was significantly increased with increase of the sprayed Zn concentration of the three Zn fertilizers. However, when the sprayed Zn concentration of ZnSO4.7H2O exceeded 200 mg·L−1, and Zn concentration of ZnCl2 or Zn(NO3)2.6H2O exceeded 100 mg·L−1, obvious necrotic spots formed on leaves. This necrosis disappeared when 0.025% organosilicone was added to the three Zn fertilizer solutions, even at a Zn concentration of 250 mg·L−1. Meanwhile, the Zn contents of leaves increased one to four times for these treatments. Furthermore, foliar application of the three Zn fertilizers significantly improved chlorophyll levels and photosynthetic capacity of Zn-deficient leaves. The data of chlorophyll and photosynthesis characteristics indicate that the correcting effect of ZnCl2 and Zn(NO3)2.6H2O is better than that of ZnSO4.7H2O, and could be further improved via supplement of organosilicone. In conclusion, ZnCl2 or Zn(NO3)2.6H2O containing 250 mg·L−1 of Zn and supplemented with 0.025% organosilicone is a safe and effective formulation of Zn foliar fertilizer for correcting citrus Zn deficiency.
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Wewa atia Al-juthery, Hayyawi, and Sahar Fadhil saadoun. "Fertilizer Use Efficiency of nano fertilizers of micronutrients foliar application on Jerusalem artichoke." Al-Qadisiyah Journal For Agriculture Sciences (QJAS) (P-ISSN: 2077-5822 , E-ISSN: 2617-1479) 9, no. 1 (March 7, 2019): 156–64. http://dx.doi.org/10.33794/qjas.vol9.iss1.74.
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field experiment was carried out in one of the fields of plot 158 district 41 Husseiniya, township of Taliaa, Babylon Governorate, to study fertilizer use efficiency of nano fertilizers micronutrients foliar application on Jerusalem artichoke (Helianthus tuberosus L.).The experiment included 17 treatments of spraying the nano-fertilizes micronutrients of nano iron 13% Fe ,nano zinc 20% Zn, nano copper 15% Cu and nano manganese 18% Mn, single spray, dual, triple and quadruple combinations, as well as a quadratic combination of a traditional source as well as the treatment of water-only control. In nutrients content in arial parts and tubers, nutrients uptake, total uptake ,FUE,MNUE. RCBD design with three replicates, and the solutions were sprayed early in the morning after 60 days of planting and at 25, 50, 75 and 100 g fertilizer 100 L-1 Water for to spray the first, second, third and fourth respectively, and according to the recommendation by 1 kg Naon fertilizers h-1, and another 400 liters of spray solution h-1.The results of the duncan test showed a probability level of 0.05 The superiority of the single spray treatments followed by the treatment of nano (Zn+Cu+Fe+Mn) in micronutrients content of arial parts and tubers of zinc, copper, iron, manganese and total uptake, While achieved the nutrient use efficiency of nano-zinc, nano-copper, nano-iron and nano-manganese (93.10, 85.00, 99.00 and 85.50%) sequentially. For individual spray treatments and (91.60, 81.30, 91.85, and 83.40%) sequentially for the treatment of nano spray common quartet (Zn + Cu + Fe + Mn).
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Li, J., M. Zhou, M. Pessarakli, and J. L. Stroehlein. "Cotton response to zinc fertilizer." Communications in Soil Science and Plant Analysis 22, no. 15-16 (September 1991): 1689–99. http://dx.doi.org/10.1080/00103629109368528.
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GUO, J. X., X. M. FENG, X. Y. HU, G. L. TIAN, N. LING, J. H. WANG, Q. R. SHEN, and S. W. GUO. "Effects of soil zinc availability, nitrogen fertilizer rate and zinc fertilizer application method on zinc biofortification of rice." Journal of Agricultural Science 154, no. 4 (May 20, 2015): 584–97. http://dx.doi.org/10.1017/s0021859615000441.
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SUMMARYRice (Oryza sativa L.) is one of the most important cereal crops in the world and a potentially important source of zinc (Zn) in the diet. The improvement of Zn content of rice is a global challenge with implications for both rice production and human health. The objective of the present study was to identify the effects of nitrogen (N) fertilizer rates and Zn application methods on Zn content of rice by evaluating rice production on native soils with different Zn availabilities in 2010/11. The results indicated that Zn application increased rice grain yield and Zn content in grains compared with the control; however, this effect was also affected by the native soil Zn availability, N fertilizer rate and Zn fertilizer application method. The native soil Zn status was the dominant factor influencing grain yield and grain Zn content in response to Zn fertilizer application. Grain Zn content ranged from 19·74 to 26·93 mg/kg under the different Zn statuses. The results also indicated that Zn application method has a significant influence on grain yield. Application of Zn fertilizer to the soil was more effective than the foliar spray on rice grain yield; however, the foliar spray resulted in a greater increase in grain Zn content when compared with soil application. Grain Zn content was affected by application method and displayed the following general trend: soil application + foliar spray > foliar spray > soil application. The experiments investigating the effect of N fertilizer rate combined with Zn application method showed a clear increase in both grain yield and Zn content as the N fertilizer level increased from 200 to 300 kg/ha. In addition, the results also indicated that N content and accumulation increased in all plant tissues, which suggests that Zn application might influence the uptake and translocation of N in rice plants. These results suggest that soil application in addition to a foliar spray of Zn should be considered as an important strategy to increase grain yield and grain Zn content of rice grown in soils with low background levels of Zn-associated diethylene triamine pentaacetate acid. Moreover, this process could be further strengthened by a high N application rate. In conclusion, these results demonstrate the potential of optimizing nutrient management using Zn fertilizer to obtain higher grain yields and higher grain Zn content in fields with low native Zn status.
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Islam, GMM, M. Hossain, SMA Iqbal, and MRA Mollah. "Assessment of Quality Status of Zinc Sulfate (hepta hydrate) Fertilizers Available in the Markets of Jessore Sadar Upazila." Journal of Environmental Science and Natural Resources 8, no. 1 (August 24, 2015): 69–71. http://dx.doi.org/10.3329/jesnr.v8i1.24674.
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An experiment was conducted in the Department of Soil Science, Bangladesh Agricultural University, Mymensingh during January to December, 2012 to see the quality status of Zinc Sulfate (hepta hydrate) fertilizers available in the markets of Jessore sadar upazila. For this purposes Zinc Sulfate (hepta hydrate) fertilizer samples were randomly collected from all union of the upazila. Fifteen unions and a pourashava in this upazila were included the experiment. Three composite samples were collected from each of the unions. Therefore, 48 composite samples were ready for 16 unions including pourashava. In this study 79% Zinc Sulfate (heptahydrate) fertilizer was adulterated and 21% was qualified according to government specification. 40% of them were ten to fifty percent of required Zn content and 2% of them were same level of S content. Only 21% of total fertilizers contained hundred percent of required Zn. Whereas, 96% fertilizers contained the same level of required S and only four percent of the fertilizers was found as sulfur deficient. The highest nutrient value of S and Zn were 17.75% and 23.03% respectively. On the other hand, the lowest value of them was 5.2% and 1.30%. Further 27% of them contained above eighty percent of required Zn. No unique relation between sulfur and zinc content of those fertilizers was found.J. Environ. Sci. & Natural Resources, 8(1): 69-71 2015
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Bandyopadhyay, Siladitya, Kunal Ghosh, and Chandrika Varadachari. "Multimicronutrient Slow-Release Fertilizer of Zinc, Iron, Manganese, and Copper." International Journal of Chemical Engineering 2014 (2014): 1–7. http://dx.doi.org/10.1155/2014/327153.
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The process for the production of a slow-release micronutrient fertilizer is described. The compound contains zinc, iron, manganese, and copper as micronutrients and is produced by polymerizing a system containing phosphoric acid, zinc oxide, hematite, pyrolusite, copper sulfate, and magnesium oxide followed by neutralization of the polyphosphate chain with ammonium hydroxide. Changes in temperature, density, and viscosity of the reaction system during polymerization were studied. Reaction kinetics was studied at three different temperatures. Rate curves revealed a multistage process with essentially linear rates at each stage. Thus, each stage displayed zero order kinetics. The product was crystalline and revealed ordering of P-O-P chains. It had low solubility in water but high solubility in 0.33 M citric acid and 0.005 M DTPA. Three different field trials showed significant yield increments using the slow-release micronutrient fertilizer compared to the conventional micronutrients. Yield increments in rice were in the range of 10–55% over control (with no micronutrient) and up to 17% over the conventional micronutrient fertilizers. There were significant increases in total uptake of zinc, iron, and manganese in the grain. Slow-release fertilizers also produced significant yield increases in potato as well as significant increase in vitamin C content of the tuber.
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Chang, Hong, Xin Bin Zhou, Shu Hui Yu, and Yong Xiang Zhou. "Effects of Nitrogen on Zinc Uptake, Accumulation and Partitioning of Wheat." Applied Mechanics and Materials 316-317 (April 2013): 250–53. http://dx.doi.org/10.4028/www.scientific.net/amm.316-317.250.
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Effects of nitrogen on uptake, accumulation and partitioning of zinc throughout the development of wheat were studied under pot-culture conditions. The results showed that under low zinc application (0.2 mg kg-1) the grain zinc content increased by 140% when nitrogen fertilizer increased from 50 mg kg-1 to 150 mg kg-1. Under high zinc application (5 mg kg-1) the grain zinc content increased by 61%. Increasing nitrogen application under low zinc fertilizer, the grain zinc mainly comes from the root zinc uptake. While increasing nitrogen application under high zinc fertilizer, the grain zinc mainly comes from the straw zinc remobilization.
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Janmohammadi, Mohsen, Hedayat Abdoli, Naser Sabaghnia, Mohammad Esmailpour, and Ahmad Aghaei. "The Effect of Iron, Zinc and Organic Fertilizer on Yield of Chickpea (Cicer artietinum L.) in Mediterranean Climate." Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis 66, no. 1 (2018): 49–60. http://dx.doi.org/10.11118/actaun201866010049.
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Chickpea is one the most important legume crops in Mediterranean semi-arid regions and its sustainable production strongly depends on the nutrient management and water availability. Soils of these regions generally have high pH, and low organic matter, which reduce the availability of micronutrients and led to multi-micronutrient deficiencies. For estimating the effect of integrated application of different levels of organic fertilizer (zero, 20 t ha-1, 40 t ha-1) and micronutrient fertilizers (Zn, Fe) on agronomic traits and yield components of chickpea, an experiment was carried out at the highland semi-arid regions in Piranshahr district (36° 40ʹ N, 45° 08ʹ E; 1840 m). Assessment of phenological development revealed that plants grown under control condition (no-organic and micronutrients fertilizer) had a significantly slower development. Assessment of agronomic characteristics showed that application of micronutrients fertilizer substantially increased plant height, first pod height, canopy width, number of the seed, seed weight, economic and biological yield compared to control condition. By increasing the application rate of organic fertilizer its positive effects became more impressive on growth and yield component. The best growth performance was recorded by integrated application of 40 t ha-1 organic fertilizer and micronutrients fertilizers. However, there was no significant difference between fertilizer of Fe and Zn. Overall, the results indicated that the studied site is facing with micronutrient deficiencies and application organic fertilizer can noticeably improve the efficiency of micronutrients fertilizer. A quick and supplementary approach is therefore required for remedy of both Zn and Fe deficiencies in the short term. The finding showed that a substantial yield improvement is possible by integrated application of organic and micronutrient fertilizer.
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Potarzycki, J., and W. Grzebisz. "Effect of zinc foliar application on grain yield of maize and its yielding compone." Plant, Soil and Environment 55, No. 12 (December 28, 2009): 519–27. http://dx.doi.org/10.17221/95/2009-pse.
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Actual yields of maize harvested by farmers are at level much below attainable yield potential of currently cultivated varieties. Among many growth factors zinc was recognized as one of main limiting factors of maize crop growth and yielding. This hypothesis has been verified within a three-year field study, where zinc fertilizer was applied to maize plants at the 5<sup>th</sup> leaf stage. Maize crop responded significantly to zinc foliar application in two of three years of study. The optimal rate of zinc foliar spray for achieving significant grain yield response was in the range from 1.0 to 1.5 kg Zn/ha. Grain yield increase was circa 18% (mean of three years) as compared to the treatment fertilized only with NPK. Plants fertilized with 1.0 kg Zn/ha significantly increased both total N uptake and grain yield. Yield forming effect of zinc fertilizer revealed via improvement of yield structure elements. The number of kernels per plant showed the highest response (+17.8% as compared to the NPK plot) and simultaneously the highest dependence on N uptake (<i>R</i><sup>2</sup> = 0.79). For this particular zinc treatment, however, the length of cob can also be applied as a component of yield structure significantly shaping the final grain yield.
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Zhang, Yue-Qiang, Li-Li Pang, Peng Yan, Dun-Yi Liu, Wei Zhang, Russell Yost, Fu-Suo Zhang, and Chun-Qin Zou. "Zinc fertilizer placement affects zinc content in maize plant." Plant and Soil 372, no. 1-2 (October 1, 2013): 81–92. http://dx.doi.org/10.1007/s11104-013-1904-9.
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Yao, Lu, Jinpeng Zhu, Zhiyu Li, Yuxi Wang, Xiong Zhou, and Jin Wang. "Effects of Zinc Fertilizer on Photosynthetic Characteristics of 'Shine Muscat' Grape." E3S Web of Conferences 136 (2019): 07017. http://dx.doi.org/10.1051/e3sconf/201913607017.
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Zinc is an essential nutrient for plant growth and development. Zinc deficiency affects plant photosynthesis and nitrogen metabolism. In this experiment, 'Shine Muscat' grape was used as experimental material. Three soil application levels of zinc sulfate were set up, which were 2 kg/667 m2, 3 kg/667 m2 and 4 kg/667 m2, respectively. The time of applying zinc fertilizer in soil was 10 days after flowering, and the time of spraying zinc fertilizer was divided into 21 days after flowering, 35 days after flowering, 21 days and 35 days after flowering, respectively, once (twice in total), with no zinc fertilizer as control (CK). The results showed that the application of zinc sulfate 3 kg/677 m2 on soil 10 days after flowering, 0.3% zinc sulfate fertilizer on leaves 21 days after flowering and 35 days after flowering increased zinc content in grape leaves and fruits, and significantly increased net photosynthetic rate of grape leaves.
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Sajwan, K. S., and W. L. Lindsay. "Response of flooded rice to various sources of zinc." Journal of Agricultural Science 111, no. 1 (August 1988): 197–98. http://dx.doi.org/10.1017/s0021859600083039.
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Zinc deficiency has been one of the major micronutrient disorders of flooded rice. Several researchers have reported that Zn deficiency could be corrected by the application of various Zn fertilizers to soil (Mikkelsen & Brandon, 1975), to seedling root (Yoshida et al. 1970; Katyal & Ponnamperuma, 1975) or to plants as foliar spray. Also there has been much speculation about the most suitable form of Zn fertilizer for correcting Zn deficiency of flooded rice. A glasshouse study was conducted to compare the effectiveness of various Zn fertilizers for rice grown under flooded conditions.
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Jacob, Jack D. C., Francis H. C. Rubianes, Sarah E. Johnson-Beebout, and Roland J. Buresh. "Zinc Fertilizer Test Kit for Semi-Quantitative Verification of Fertilizer Quality." Journal of Plant Nutrition 37, no. 8 (May 28, 2014): 1237–54. http://dx.doi.org/10.1080/01904167.2014.881868.
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Recena, Ramiro, Ana M. García-López, and Antonio Delgado. "Zinc Uptake by Plants as Affected by Fertilization with Zn Sulfate, Phosphorus Availability, and Soil Properties." Agronomy 11, no. 2 (February 22, 2021): 390. http://dx.doi.org/10.3390/agronomy11020390.
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Zinc (Zn) deficiency constrains crop yield and quality, but soil factors influencing Zn availability to plants and reactions of applied Zn fertilizer are not fully understood. This work is aimed at studying Zn availability in soil and the use efficiency of Zn fertilizers by plants as affected by soil properties and particularly by soil available P. We performed a pot experiment involving four consecutive crops fertilized with Zn sulfate using 36 soils. The cumulative Zn uptake and dry matter yield in the four crops increased with increased initial diethylenetriamine pentaacetic acid extraction of Zn (DTPA-Zn) (R2 = 0.75 and R2 = 0.61; p < 0.001). The initial DTPA-Zn increased with increased Olsen P (R2 = 0.41; p < 0.001) and with increased ratio of Fe in poorly crystalline to Fe in crystalline oxides (R2 = 0.58; p < 0.001). DTPA-Zn decreased with increased cumulative Zn uptake, but not in soils with DTPA-Zn < 0.5 mg kg−1. Overall, the available Zn is more relevant in explaining Zn uptake by plants than applied Zn sulfate. However, in Zn-deficient soils, Zn fertilizer explained most of the Zn uptake by crops. Poorly crystalline Fe oxides and P availability exerted a positive role on Zn availability to plants in soil.
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Sabaghnia, Naser, and Mohsen Janmohammadi. "Analysis of the impact of nano-zinc, nano-iron, and nano-manganese fertilizers on chickpea under rain-fed conditions." Annales Universitatis Mariae Curie-Sklodowska, sectio C – Biologia 70, no. 2 (October 20, 2016): 43. http://dx.doi.org/10.17951/c.2015.70.2.43.
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<p>Nanotechnology is an emerging field of science widely exploited in many scientific fields but its application in agriculture is rarely studied in the world. In the current study, application of nanotechnology in agricultural via the application of some micronutrient nano-fertilizers (nano-zinc, nano-iron, and nano-manganese) and different sulfur fertilizers have been investigated. Three levels of sulfur fertilizer (S1: no application, S2: 15 Kg ha-1, S3: 30 Kg ha-1) and three micronutrients nano-fertilizer (Nano1: nano-chelated zinc, Nano2: nano-chelated iron, and Nano3: nano-chelated manganese) were studied on some morphophysiological traits of chickpea. Results showed that the first two principal components of treatment × trait (TT) biplot accounted to 56% and 18% respectively of total variation. The vertex treatments in polygon biplot were S1-Nano2, S1-Nano3, S2-Nano1, S3-Nano1, and S3-Nano2 which S3-Nano1 treatment indicated high performance in day to maturity, plant height, first pod height, primary branch per plants, secondary branch per plant, number of pods per plant, number of seeds per plant and 1,000 seed weight. According to vector-view biplot, seed yield was positively associated with the number of pods per plant, harvest index and day to maturity. The ideal treatment identified the S3-Nano1 (30 kg ha-1 sulfur plus nano-chelated zinc) that might be used in selecting superior traits and it can be considered as the candidate treatment. The ideal trait of biplot showed that seed yield had the highest discriminating ability and they were the most representative and as the final target trait of producers, it has the ability of discrimination among different treatm ents. The best fertilizer treatment for obtaining of high seed yield was identified in the vector-view function of TT biplot as S3-Nano1 (30 kg ha-1 sulfur plus nano-chelated zinc).</p>
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Martín-Ortiz, Diego, Lourdes Hernández-Apaolaza, and Agustín Gárate. "Wheat (Triticum aestivum L.) Response to a Zinc Fertilizer Applied as Zinc Lignosulfonate Adhered to a NPK Fertilizer." Journal of Agricultural and Food Chemistry 58, no. 13 (July 14, 2010): 7886–92. http://dx.doi.org/10.1021/jf100693t.
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Tuiwong, Patcharin, Sithisavet Lordkaew, and Chanakan Prom-u-thai. "Improving Grain Zinc Concentration in Wetland and Upland Rice Varieties Grown under Waterlogged and Well-Drained Soils by Applying Zinc Fertilizer." Agronomy 11, no. 3 (March 15, 2021): 554. http://dx.doi.org/10.3390/agronomy11030554.
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The objective of this study was to evaluate the responses in grain yield and zinc concentration of wetland and upland rice varieties to Zn fertilizer application and different growing conditions. The wetland (Chainat 1; CNT1) and upland (Kum Hom CMU; KH CMU) rice varieties were grown under waterlogged and well-drained soil conditions with or without Zn fertilizer application. Zinc fertilizer (ZnSO4) was applied at 0 and 60 kg ha−1 in three stages at tillering, booting, and flowering. In the wetland variety, CNT1, grain yield decreased by 18.0% in the well-drained soil compared to the waterlogged conditions, but there was an 8.9% decrease in grain yield in the waterlogged soil compared to the well-drained soil in the upland variety, KH CMU. Applying Zn fertilizer affected yields differently between the varieties, decreasing grain yield by 11.9% in CNT1 while having no effect in KH CMU. For grain Zn concentrations in brown rice, applying Zn fertilizer increased Zn concentration by 16.5–23.1% in CNT1 and KH CMU under both growing conditions. In the well-drained soil, applying Zn fertilizer increased straw Zn concentration by 51.6% in CNT1 and by 43.4% in KH CMU compared with the waterlogged conditions. These results indicated that the wetland and upland rice varieties responded differently to Zn fertilizer application when grown in different conditions. Applying Zn fertilizer in the appropriate rice variety and growing conditions would help farmers to improve both the desirable grain yield and Zn concentration in rice.
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Hernandez, Jorge David, and Randy Killorn. "Phosphorus fertilizer by-product effect on the interaction of zinc and phosphorus in corn and soybean." Canadian Journal of Soil Science 89, no. 2 (May 1, 2009): 189–96. http://dx.doi.org/10.4141/cjss07069.
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The application of high phosphorus fertilizer by-products to farmland is a common practice used to reduce storage volume and disposal cost. However, because Iowa soils are generally high in both phosphorus and zinc, there are environmental and fertility questions concerning their application to farmland. A greenhouse study was conducted to determine the effect of a soil-applied fertilizer by-product on the zinc-phosphorus relationship in corn and soybean plants grown on three Iowa soil series: Belinda, Downs, and Haig. The soils were mixed with a high-phosphorus fertilizer by-product and plants were also collected and analyzed for phosphorus and zinc content and uptake. Soil samples were analyzed for phosphorus and zinc content. The experiment was repeated, switching pots to assess the residual effect after one cycle of rotation. The treatments were arranged in a totally randomized design with three replications. The results indicated that the high phosphorus fertilizer by-product increased soil and plant concentrations of phosphorus in soybean and corn plants and soils. However, the increase of P concentration did not induce changes in the phosphorus-zinc interaction in corn and soybean plants in any of the studied soils. Key words: Phosphorus, corn, soybean, zinc, sludge, by-products, Zn-P relationship, zinc-phosphorus interaction
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Potarzycki, J. "Effect of magnesium or zinc supplementation at the background of nitrogen rate on nitrogen management by maize canopy cultivated in monoculture." Plant, Soil and Environment 57, No. 1 (January 14, 2011): 19–25. http://dx.doi.org/10.17221/77/2010-pse.
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In five consecutive growth seasons from 2003 to 2007 a response of maize variety Eurostar (var. FAO 240) to supply of NPK fertilizer supplemented with magnesium or zinc was investigated. The aim of the study was to evaluate the role of zinc (NPK + Zn) or magnesium (NPK + Mg) in controlling nitrogen management by maize crop fertilized with 80 and 140 kg N/ha. In the course of the study, total grain nitrogen content did not show any response to both experimental factors and weather variability, as well. However, the obtained results indicate, that magnesium and zinc have significantly increased SPAD (chlorophyll index) indices of maize cob leaf at anthesis. A significant effect of both factors interaction on nitrogen accumulation in grain and cob covering leaves was noted, but limited to the 80 kg N/ha treatment. The physiological role of Mg and Zn in nitrogen management was most manifested throughout its greater recovery from nitrogen fertilizer applied at the rate 80 kg N/ha, amounting to 92 and 94% respectively; for the NPK, it was only 78%.
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Shaver, T. M., D. G. Westfall, and M. Ronaghi. "Zinc Fertilizer Solubility and Its Effects on Zinc Bioailability Over Time." Journal of Plant Nutrition 30, no. 1 (January 2007): 123–33. http://dx.doi.org/10.1080/01904160601055145.
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Fernandez-Salvador, Javier, Bernadine C. Strik, and David R. Bryla. "Liquid Corn and Fish Fertilizers Are Good Options for Fertigation in Blackberry Cultivars Grown in an Organic Production System." HortScience 50, no. 2 (February 2015): 225–33. http://dx.doi.org/10.21273/hortsci.50.2.225.
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The impact of organic fertilizer source on the growth, fruit quality, and yield of blackberry (Rubus L. subgenus Rubus Watson) cultivars (Marion and Black Diamond) grown in a machine-harvested, organic production system for the processed market was evaluated from 2011 to 2013. The planting was established in Spring 2010 using approved practices for organic production and was certified in 2012. Plants were irrigated using a dripline under a woven polyethylene groundcover (weed mat) installed for weed management. Two sources of liquid fertilizer were evaluated: 1) a corn steep liquor and fish waste digestion blend (“corn”; 2.5N–1.1P–1.2K); and 2) a fish solubles and molasses blend (“fish”; 4N–0P–1.7K). Fertilizers were applied by fertigation through the drip system at rates of 56 kg·ha−1 nitrogen (N) per year in 2011–12 and 90 kg·ha−1 N in 2013. The impact of fertigation on drip system performance was evaluated with two maintenance options, “flushing” and “no flushing” of the driplines. Total yield differed among years, whereas fruit soluble solids concentration and firmness as well as floricane biomass at pruning showed a year × cultivar interaction. ‘Black Diamond’ had greater total yield and average fruit weight than ‘Marion’, but produced a greater proportion unmarketable fruit. There was no effect of fertilizer source on yield, fruit quality, primocane length, or primocanes/plant in any year with the exception of fruit weight, which was greater with corn than with fish. ‘Marion’ had a greater floricane biomass when fertilized with fish than with corn. Soil nutrients were within the recommended range, except for boron (B), which was below recommended levels. Only soil nitrate-N was affected by fertilizer source, which was greater in ‘Marion’ than in ‘Black Diamond’ when fertilized with fish. Primocane leaf tissue nutrient concentrations were within recommended levels for all nutrients, except for calcium (Ca) and B, which were below recommended standards in both cultivars. Primocane leaf potassium (K) and zinc (Zn) concentrations were greater with fish than with corn. There was no fertilizer source or maintenance effect on emitter flow rate of the drip system in either year. However, flow rates decreased an average of 4.5% in the first year and 19% in the second year. Overall, there were no differences between the fertilizers on plant growth, yield, or fruit quality, and both fertilizers were suitable for planting establishment.
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Ahmad, Jamil, Dost Muhammad, Mujibur Rahman, and Maria Mussarat. "Fortification of Locally Developed Single Super Phosphate With Zinc Sulphate for Enhanced Zinc Nutrition to Maize Crop Under Calcareous Soil Conditions." Current Agriculture Research Journal 6, no. 1 (January 25, 2018): 30–36. http://dx.doi.org/10.12944/carj.6.1.04.
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A study was carried out in calcareous soil (low in ABDTPA extractable phosphorus and zinc) to evaluate the effect of zinc fortified locally developed single super phosphate fertilizers on maize grown in summer 2016. Zinc fortified fertilizers were prepared in laboratory of soil science department, University of Agriculture Peshawar, Pakistan. Treatments consisted of mixing two levels of zinc 5 and 10 kg ha-1 with SSP during its formulation by three methods of fortification coating, blending and reaction along with separate application and no application of zinc or a control treatment. Results showed the two levels of zinc mixed by different methods with SSP significantly influenced various appraised parameters of maize crop variety. With varying zinc level and fortification methods thousand grain weights, biomass yield and zinc concentration in leaves and grain were influenced significantly. Zinc at the rate of 10 kg ha-1 fortified with SSP through coating method produced maximum yield and yield components. Zn concentrations were higher in grains than leaves. It was concluded form the study that zinc (at the rate of 10 kg ha-1) mixed with phosphate fertilizer by coating produced highest maize grain yield and this method can be recommended for calcareous soil conditions of Peshawar.
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Santos, Wedisson Oliveira, Priscila Maria de Aquino, Rafael Lucas Coca Cuesta, Isabela Maísa Honorato Saldanha, Edson Marcio Mattiello, and Leonardus Vergütz. "Zinc Diffusion and Availability Affected by Different Sources in Soils of Contrasting Textures." Journal of Agricultural Science 11, no. 5 (April 15, 2019): 259. http://dx.doi.org/10.5539/jas.v11n5p259.
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Trends in new fertilizer technologies should balance the nutrient release rate from fertilizers with plant demands over time, while developing suitable physical characteristics of the fertilizer’s particles. The objective of this study was to evaluate the performance of three zinc fertilizers [ZnO, ZnSO4, and a commercial co-granulated ZnO+S0 fertilizer (ES_Zn)] on Zn diffusion in soil and their agronomic performances. A Petri dish trial was carried out in order to evaluate the diffusion of Zn in the soil. The experiment was designed as a factorial scheme (3 + 1) × 2 × 3, with three Zn sources, one control treatment (without Zn application), two soils of contrasting textures (sandy and clay), and three incubation times (1, 30 and 60 d). The experiment was carried out under a completely randomized design with four replications. Zinc diffusion was assessed according to the method proposed by Degryse et al. (2015) along of incubation times. For that, a ZnSO4 solution or ZnO suspension was applied by pipetting 15 μL of solution or suspension into a small hole (~0.5-cm deep) in the center of the Petri dish. A single pastille of ES_Zn fertilizer (30±0.5 mg) was placed in the center of the Petri dish, at the same depth. Soil was watered to 80% of field capacity. Filter papers (Whatman) were impregnated with CaCO3 and placed on the soil surface. After 2 h of reaction, the CaCO3-impregnated filter papers were collected, and the precipitated Zn in the papers was colored with dithizone, giving a pink color. The performance of Zn sources was evaluated in a greenhouse through a successive maize-soybean-millet crop. The trial was designed as a 2 × (3 × 3 +1) factorial scheme, being two soils (sandy and clay), three Zn sources (ZnSO4, ZnO, and ES_Zn), three Zn doses (1.5, 3.0, and 6.0 mg dm-3 Zn), and a control treatment. The experiment was a randomized block design with four replications, being the experimental unit composed of a pot with 4 dm3 of soil. Pastille ES_Zn, ZnO (as suspension), and ZnSO4 (as solution) were applied at five equidistant points, at 5 cm below the soil surface. After 30, 60 and 60 days of planting, shoot of maize soybean and millet were harvest, oven-dried at 70 °C for 72 h (until constant weight), weighed and milled for chemical analysis. ES_Zn fertilizer promoted a delay Zn release in the soil, being effective as a fertilizer only in the last crop (millet), as well as ZnO. Zinc oxide and ZnSO4 had similar performances for increasing Zn availability in the inner soil portion, but its diffusion in soil was superior when the source was sulfate. The highly soluble ZnSO4 was more effective than ZnO-based fertilizers in terms of plant nutrition, especially for the two first crops. Our results also suggest that ZnO is solubilized in soil at high pH (6.6), its dispersion in soil being a key factor for the dissolution rate.
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Sadiq, Maqsood, Usama Mazhar, Ghulam Abbas Shah, Zeshan Hassan, Zahid Iqbal, Imran Mahmood, Fahad Masoud Wattoo, et al. "Zinc Plus Biopolymer Coating Slows Nitrogen Release, Decreases Ammonia Volatilization from Urea and Improves Sunflower Productivity." Polymers 13, no. 18 (September 18, 2021): 3170. http://dx.doi.org/10.3390/polym13183170.
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Currently, the global agriculture productivity is heavily relied on the use of chemical fertilizers. However, the low nutrient utilization efficiency (NUE) is the main obstacle for attaining higher crop productivity and reducing nutrients losses from these fertilizers to the environment. Coating fertilizer with micronutrients and biopolymer can offer an opportunity to overcome these fertilizers associated problems. Here, we coated urea with zinc sulphate (ZnS) and ZnS plus molasses (ZnSM) to control its N release, decrease the ammonia (NH3) volatilization and improve N utilization efficiency by sunflower. Morphological analysis confirmed a uniform coating layer formation of both formulations on urea granules. A slow release of N from ZnS and ZnSM was observed in water. After soil application, ZnSM decreased the NH3 emission by 38% compared to uncoated urea. Most of the soil parameters did not differ between ZnS and uncoated urea treatment. Microbial biomass N and Zn in ZnSM were 125 and 107% higher than uncoated urea, respectively. Soil mineral N in ZnSM was 21% higher than uncoated urea. Such controlled nutrient availability in the soil resulted in higher sunflower grain yield (53%), N (80%) and Zn (126%) uptakes from ZnSM than uncoated fertilizer. Hence, coating biopolymer with Zn on urea did not only increase the sunflower yield and N utilization efficiency but also meet the micronutrient Zn demand of sunflower. Therefore, coating urea with Zn plus biopolymer is recommended to fertilizer production companies for improving NUE, crop yield and reducing urea N losses to the environment in addition to fulfil crop micronutrient demand.
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Caldwell, Matthew, Kelly A. Nelson, and Manjula Nathan. "Co-Granulated and Blended Zinc Fertilizer Comparison for Corn and Soybean." Journal of Agricultural Science 8, no. 12 (November 6, 2016): 9. http://dx.doi.org/10.5539/jas.v8n12p9.
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A new co-granulated formulation of monoammonium phosphate (MAP) including S and Zn could allow for more uniform nutrient distribution. A six site-year study evaluated the effects of blended phosphorus (P) sources [MAP and diammonium phosphate (DAP)] and zinc amounts (0, 2.2, and 5.6 kg Zn ha-1) compared to co-granulated fertilizer, MicroEssentials® Sulfur-10 (MES10™) (12-40-0-10S) and MicroEssentials Sulfur and Zinc (MESZ™) (12-40-0-10S-1Zn), on corn and soybean response. Fertilizers were broadcast applied for corn and the carry-over effect on soybean was determined. Ear leaf P, S, and Zn concentrations at Novelty in 2013 and 2014 were within the sufficiency range regardless of treatment, even though initial soil test values were low-medium. Yields were similar to the N only control for all site-years except at Novelty in 2013, where MAP+ZnSO4 at 2.2 kg Zn ha-1, MAP+Super Zn at 5.5 kg Zn ha-1, and DAP+AMS were 540 to 570 kg/ha greater. The amount of Zn fertilizer (2.2 vs. 5.6 kg Zn ha-1) also showed no significant effect on yield. Applications of P or Zn generally increased their concentrations in post-harvest soil samples. Fertilizer applied for corn indicated some differences in soybean plant nutrient concentrations, but it had no effect on total plant nutrient uptake, grain yield or quality. At Novelty, soybean plant Zn concentration was greater at 5.6 kg Zn ha-1 compared to 2.2 kg Zn ha-1, while Albany showed an increase in whole soybean plant Zn concentration with SuperZn compared to ZnSO4. Carry-over fertilizer from corn showed limited effects on soybean response the following year.
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Guo, Z., X. Guo, J. Wang, and D. Wang. "Occlusive effect of soil aggregates on increased soil DTPA-extractable zinc under low soil pH causedby long-term fertilization." Plant, Soil and Environment 59, No. 11 (November 7, 2013): 524–29. http://dx.doi.org/10.17221/489/2013-pse.
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To investigate the effect of low soil pH caused by fertilization on soil available zinc in calcareous soil, this study was conducted based on a long-term experiment consisting of: (a) no fertilization (CT); (b) mineral fertilizer application coupled with 7500 kg/ha of wheat straw (WS-NPK); (c) mineral fertilizer application coupled with 3750 kg/ha of wheat straw (1/2WS-NPK); (d) mineral fertilizer application alone (NPK). Long-term fertilization results in a significant increase in soil DTPA-extractable zinc. However, the increased soil DTPA-extractable zinc is unavailable to crops and mainly confined to 0.25 mm > and 0.25 mm to 1 mm aggregates. Compared to CT, soil DTPA-extractable zinc under fertilization is more than 9.67% and 122.36% higher in 0.25 mm > and 0.25 mm to 1 mm aggregates, respectively. Furthermore, plant-available zinc in the 0–15 cm soil layer and wheat grain zinc are both significantly positive related to soil DTPA-extractable zinc in > 2 mm aggregates. Therefore, plant-available zinc in the 0–15 cm layer is closely associated with DTPA-extractable zinc in > 2 mm aggregates, and the low soil pH caused by long-term fertilization could not enhance plant-available zinc in the surface soil layer nor elevate wheat grain zinc concentration because of the occlusive effect of soil aggregates.
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Datta, Madhumita Ghosh. "Blended Amendments: A Sustainable Approach for Managing Nutrient Deficiency in Rice Fields." Environment and Natural Resources Journal 19, no. 6 (September 1, 2021): 1–9. http://dx.doi.org/10.32526/ennrj/19/202100032.
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The application of chemical fertilizer provides absorbable soluble macronutrients for increasing rice yield while reducing the availability of micronutrients and occasionally halting nitrogen mineralisation in the soil. To lessen some of these undesirable effects of chemical fertilization, an effort has been made to prepare blended soil organic amendments by mixing organic materials like rice straw, dried cow-dung and compost prepared from eco-friendly wastes from the kitchen, backyard garden and dried cow-dung mixed in the ratio 1:2:2. Such prepared amendments were applied in the rice field by growing three high-yielding rice cultivars Dikhow, Chandrama and Naveen, in three different rice cropping seasons, pre-monsoon (Ahu), monsoon (Sali) and summer (Boro) during 2015-2016 and 2016-2017 for studying soil properties, crop growth and yield. The key finding of the investigation was that the soil amended with chemical fertilizer showed improvement in soil moisture compared to unamended soil in all three rice fields. However, chemically fertilized soil exhibited lower amounts of available phosphorus, available potassium, diethylenetriaminepentaacetic acid (DTPA) extracted iron and copper in Ahu field, DTPA extracted iron, copper and zinc in Sali field and immobilizing nitrogen in Boro field than blended amendments. Overall, chemical fertilizer + rice straw displayed more available nitrogen and yield in Ahu field, whereas, chemical fertilizer + dried cow dung showed the highest amount of zinc and copper along with the highest yield in Sali rice field and chemical fertilizer+compost had better moisture and soil organic carbon amounts with an ideal acidic pH supporting maximum yield in Boro rice field.
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Ishag, H. M. "Effects of Foliar Micronutrient Fertilizers on the Yield of Irrigated Cotton on the Vertisols of the Sudan Gezira." Experimental Agriculture 28, no. 3 (July 1992): 265–71. http://dx.doi.org/10.1017/s0014479700019864.
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SummaryField experiments were conducted on very alkaline calcareous soils to investigate the effects of two proprietary foliar micronutrient fertilizers, Wuxal Suspension Polymicro and Bayfolan 11-8-6, containing iron, zinc, manganese and boron, on the seed cotton yield of Gossypium barbadense and G. hirsutum. Two applications of foliar fertilizer, one at flowering and one three weeks after flowering, increased yield by 40–68%. The foliar fertilizers enhanced earliness and minimized nutrient depletion from the leaves, and thus increased reproductive efficiency.
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Sarker, Babul C., and MA Rahim. "Effects of Doses and Splits of Fertilizer Application on Harvesting Time, Yield and Quality of Mango CV. Amrapali." Bangladesh Journal of Agricultural Research 37, no. 2 (July 14, 2012): 279–93. http://dx.doi.org/10.3329/bjar.v37i2.11231.
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The experiment was carried out at the Germplasm Centre of Bangladesh Agricultural University, Mymensingh during the fruiting season of 2005-06 to investigate the effects of fertilizer and its installment of application on harvesting time, yield and quality of fruits of 8 years old mango plant cv. Amrapali. Four fertilizer doses i.e. T1 : 50% of the fertilizer dose (cowdung 12.5 kg, urea 375 g, TSP200g, MoP125 g, gypsum 125 g and zinc sulphate 7.5 g per plant), T2 : 100% of the fertilizer dose (cowdung 25 kg, urea 750 g, TSP400 g, MoP 250 g, gypsum 250 g and zinc sulphate 15 g per plant), T3 : 150% of the fertilizer dose (cowdung 37.5 kg, urea 1125 g, TSP 600 g, MoP 375 g, gypsum 375 g and zinc sulphate 22.5 g per plant), and T4 : control (no fertilizer) and three splits of application i.e. A1 : One installment (whole fertilizer applied on 15 September), A2 : Two installments (15 September and 15 March) and A3 : Three installments (15 September, 15 March and 15 May) were included as treatments. Plants receiving 150% of the fertilizer dose in three installments caused delayed harvest by 11 days compared to control than that of the control. Plants treated with 150% of fertilizer dose in combination with three installments produced the highest number of fruits (96/ plant) as well as the highest yield (19.55 kg/plant) as compared to control (23/ plant and 3.48 kg/plant). Applying fertilizer at 150% of the fertilizer dose in three installments improved the fruit quality with regard to TSS, pH, titratable acidity, vitamin C, moisture content, dry matter content, reducing sugar, non reducing sugar and total sugar content over control. Thus, this treatment may be recommended for fertilizer management in mango cultivation. DOI: http://dx.doi.org/10.3329/bjar.v37i2.11231 Bangladesh J. Agril. Res. 37(2): 279-293, June 2012
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Yoder, Natalie, and Jessica G. Davis. "Organic Fertilizer Comparison on Growth and Nutrient Content of Three Kale Cultivars." HortTechnology 30, no. 2 (April 2020): 176–84. http://dx.doi.org/10.21273/horttech04483-19.
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Selecting supplemental nitrogen (N) fertilizer for use on certified organic farms can be difficult and confusing. There are many options commercially available to farmers with similar N concentrations but widely different ingredients. Experiments were conducted in a certified organic field and high tunnels near Fort Collins, CO in 2013 and 2014 to evaluate the impact of organic fertilizers on yield and nutrient concentrations of three kale (Brassica oleracea and Brassica napus) cultivars. This study includes an organic fertilizer (cyano-fertilizer), which is produced on-farm by growing N-fixing cyanobacteria (Anabaena cylindrica) in raceway ponds. The three fertilizer treatments were hydrolyzed fish emulsion, alfalfa (Medicago sativa) meal, and cyano-fertilizer. These were applied at rates calculated by subtracting soil nitrate concentration from a target 50 mg·kg−1 to the depth of 6 inches of soil. Cyano-fertilizer and hydrolyzed fish emulsion were applied in liquid form, while the alfalfa meal was incorporated dry into the soil before planting. Biweekly measurements of plant height were taken on three cultivars of kale: Dinosaur, Red Russian, and Winterbor. Leaf weight, leaf area, and N, iron (Fe), and zinc (Zn) concentrations were measured during three to four monthly harvests each year. Organized in a split-plot experimental design, there were three treatment replications with subplots of different kale cultivars. Fertilizer treatment did not significantly affect plant height, leaf weight, leaf area, or plant N, Fe, and Zn concentrations. However, there were cultivar differences in plant height, leaf area, and yield. Kale cultivar choice had a larger impact on yield and plant nutrient concentrations than fertilizer choice, because fertilizers were applied at similar N rates.
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Brennan, RF. "The effectiveness of zinc fertilizers as measured by DTPA soil extractable zinc, dry matter production and zinc uptake by subterranean clover in relation to soil properties of a range of Australian soils." Soil Research 30, no. 1 (1992): 45. http://dx.doi.org/10.1071/sr9920045.
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The effectiveness of zinc fertilizer (Zn) on a wide range of Australian soils was examined using subterranean clover (Trifolium subterranean cv. Nungarin) as a test crop in a glasshouse experiment. The initial effectiveness (IE) of zinc fertilizer as measured by dry matter production (DMP), and zinc content (uptake) of subterranean clover (clover) was found to vary markedly among the soil types. No simple linear retationship between the initial effectiveness measured by either dry matter production or uptake and any one soil property was found. IE values were found to be related to the pH (1 : 5 soil :water) (pHw) and the level of DTPA soil extractable zinc measured in the unfertilized soil (Zno). IE based on Zn uptake by clover tops was also related to the organic carbon (OC) (%) content of the soils. The model for IE measured by DMP in a stepwise linear regression was IEDMP = 2.682 - 0.107 pH,-4.852 Zn, (n = 45; r2 = 0-86). IE based on Zn uptake by clover tops was: IEuptake = 10.842 - 0.882 pH, - 0.310 OC (%) - 1.349 Zn, (n = 54; R2 = 0.85). The IE of zinc fertilizer measured by DTPA soil extraction (IEDTPA-zn) was also found to vary markedly among soil types. The level of zinc extracted by DTPA after the addition of Zn fertilizer was found to be affected by clay (%), organic carbon (%) and calcium carbonate (CaCO3) (%) content of the range of Australian soils. This relationship could be described by: IEDTPA - Zn = 0.178 + 0.0.002 Clay (%) + 0.014 OC (%) + 0.018 CaCO3 (%) (N = 54, r2 = 0.84)
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Wang, Yuqing, Richard J. Heerema, James L. Walworth, Barry Dungan, Dawn VanLeeuwen, and F. Omar Holguin. "Nutraceutical Properties of Pecan Kernels Are Affected by Soil Zinc Fertilizer Application." HortScience 55, no. 12 (December 2020): 2001–7. http://dx.doi.org/10.21273/hortsci15314-20.
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Pecan (Carya illinoinensis) has high kernel antioxidant activity and unsaturated fatty acid content, which contribute to its nutraceutical properties. In the western United States, where soils are typically alkaline, pecan trees require frequent zinc (Zn) fertilizer applications to maintain normal canopy growth and nut production. Our objective was to investigate the effects of tree Zn fertilization on nutraceutical properties of ‘Wichita’ and ‘Western’ pecan kernels. Trees were fertilized with ethylenediaminetetraacetic acid (EDTA) chelated Zn, which was applied to the soil at one of three seasonal rates for a total of three treatments: 0 (control), 2.2, or 4.4 kg·ha−1 Zn. Nut samples were collected and homogenized for analyses of kernel oil yield, hydrophilic antioxidant capacity, fatty acid profile, and γ-tocopherol content. Although soil Zn treatments did not significantly affect antioxidant capacity of defatted pecan kernels, Zn application had significant positive effects on both total kernel oil yield and γ-tocopherol content compared with the control. In conclusion, soil application of Zn fertilizer may increase the human health-promoting aspects of pecan kernels, a valuable attribute among health-conscious consumers.
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Irfan, Muhammad, Muhammad Bilal Khan Niazi, Arshad Hussain, Wasif Farooq, and Munir Hussain Zia. "Synthesis and characterization of zinc-coated urea fertilizer." Journal of Plant Nutrition 41, no. 13 (May 15, 2018): 1625–35. http://dx.doi.org/10.1080/01904167.2018.1454957.
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Macarrão, Isabelle Monfrinatti, and Júlio César Dutra. "Sustainable Development Assessment of Zinc Oxide Production focused on Agribusiness." Journal of Engineering and Exact Sciences 6, no. 4 (October 20, 2020): 0577–84. http://dx.doi.org/10.18540/jcecvl6iss4pp0577-0584.
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Agribusiness sectors have evolved to a highly diversified level, the fertilizer being their main interest. These products are composed of macronutrients and micro ones essential to life. Zinc is an essential micronutrient, and it is present in fertilizers as zinc oxide. The present work is concerned with assessing, from the sustainable development viewpoint, the entire chain of production and transportation of zinc oxide. It is intended to establish an ecological audit of ZnO by the CES EduPack® software in six different scenarios. The scenario composed only of recycled material for furnace feeding was the one that spent the least energy of all and had the lowest carbon footprint. However, a scenario composed only of pure zinc was the one that spent more energy and had the highest carbon footprint. Transport was the highest consumer of energy and carbon footprint in all scenarios.
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Grohskopf, Marco A., Juliano C. Correa, Paulo C. Cassol, Rodrigo S. Nicoloso, and Dirceu M. Fernandes. "Copper and zinc forms in soil fertilized with pig slurry in the bean crop." Revista Brasileira de Engenharia Agrícola e Ambiental 20, no. 9 (September 2016): 823–29. http://dx.doi.org/10.1590/1807-1929/agriambi.v20n9p823-829.
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ABSTRACT The application of pig slurry may have different influence on copper (Cu) and zinc (Zn) dynamics in the soil compared with mineral fertilization. The aim of this research was to determine the different forms of Cu and Zn in soil and their uptake by bean plants in response to the application of mineral fertilizer and pig slurry (PS). The treatments were: mineral fertilizer (Cu and Zn oxides) and liquid pig slurry, at increasing rates (0/0, 1.7/6.0, 3.4/12.0 and 6.8/24.0 kg ha-1 Cu/Zn, respectively) applied in a Rhodic Kandiudox. PS increased the Cu content in soil in the exchangeable form, Fe oxides and residual, while the mineral fertilizer increased Cu contents in the fraction associated with soil organic matter. Soil Zn contents in the fractions available, exchangeable and SOM were highest under mineral fertilization, while in the soluble fraction the contents were highest under PS. The fertilizers had not impact on Cu and Zn contents associated with Al oxides, and these elements were mostly associated with Fe oxides in the soil. PS promoted the highest biomass production in shoots and roots of the bean plants, reflecting in the highest accumulation of Cu and Zn.
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Vaid, Sachin Kumar, Prakash Chandra Srivastava, Satya Pratap Pachauri, Anita Sharma, Deepa Rawat, Bhupendra Mathpal, Shailesh Chandra Shankhadhar, and Arvind Kumar Shukla. "Residual effect of zinc applied to rice on zinc nutrition of succeeding wheat crop inoculated with zinc solubilizing microbial consortium." Israel Journal of Plant Sciences 66, no. 3-4 (August 27, 2019): 227–37. http://dx.doi.org/10.1163/22238980-00001019.
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Large scale deficiency of Zn results in low crops yields and the problem of Zn malnutrition in humans and livestock. To economize crop production on Zn deficient soils, two-year field experiments were undertaken with two wheat varieties to evaluate the performance of seed inoculation with a consortium of three bacterial strains in combination with varying doses of Zn fertilizer applied to 1 year rice crop on yields, Zn concentration and Zn uptake of wheat. Seed coating of wheat with bacterial consortium significantly increased grain yields, Zn concentration and uptake in grains and straw and total Zn uptake over the control. It also helped to increase the apparent recoveries of soil applied Zn fertilizer to 1 year rice by succeeding wheat crops and DTPA extractable Zn in soil after 2 year wheat in comparison to the control. Seed inoculation in combination with low dosage of Zn also significantly decreased phytic acid: Zn ratio but increased methionine concentration in wheat grains.
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Веприкова (Veprikova), Евгения (Evgeniya) Владимировна (Vladimirovna), Ирина (Irina) Владимировна (Vladimirovna) Королькова (Korolkova), Борис (Boris) Николаевич (Nikolayevich) Кузнецов (Kuznetsov), and Николай (Nikolay) Васильевич (Vasil'yevich) Чесноков (Chesnokov). "PROPERTIES OF NITROGEN CONTAINING ORGANO-MINERAL FERTILIZER BASED ON ASPEN BARK." chemistry of plant raw material, no. 4 (April 18, 2018): 299–308. http://dx.doi.org/10.14258/jcprm.2018043847.
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Method of preparation of nitrogen containing fertilizer, enriched by microelements (copper and zinc), with increased resistance to nitrogen leaching by water, based on impregnation of support from aspen bark by urea and potassium sulphate solutions was proposed. The data about composition and properties of nitrogen containing fertilizer based on porous support from aspen bark was provided. Influence of K2SO4 on fertilizer resistance for nitrogen leaching by water was determined. It was shown, that the impregnation of urea containing support from aspen bark by potassium sulphate solution leads to significant (in 1.8 times) reduction of a nitrogen leaching by water from obtained fertilizer. The ability of nitrogen containing fertilizer based on aspen bark to slow leaching of mineral components by water during long time was found, that determine his prolonged action. It was shown, that after water treatment at room temperature during 12 days the fertilizer content 43.2% nitrogen, 36.7% potassium, 32.6% copper and 33.8% zinc. Vegetative experiments at greensprouting of oat seeds were shown the growth stimulate action of nitrogen containing fertilizer based on aspen bark.
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Sirbu, Carmen, Traian Cioroianu, Nicoleta Marin, and Bogdan Rujoi. "Liquid Fertilizers with Organic Substances - Agrochemical Effects Obtained by Application." Revista de Chimie 69, no. 6 (July 15, 2018): 1478–84. http://dx.doi.org/10.37358/rc.18.6.6350.
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The fertilization methods and technologies rapid development using extra-radicular fertilizers and liquid fertilizers with or without organic substances is due to both their controlled application possibilities depending on the vegetation phases, crop, agrochemical background, and nutrition deficiencies and efficiency increase of the indices regarding the fertilization costs -economical results The best agricultural practices application, compatible with the new climatic conditions, can actively contribute to environment preservation and protection at the same time with crops constancy and production capability securement. Fertilizers application with solid or liquid humic substances ensures all the needed compounds and minerals for creating and maintaining a fertile soil. At the same time their efficiency depends on multiple factors that include temperature, humidity, previous agricultural practices, soil physical and chemical characteristics, pesticides or other polluting products residues, microbial population present in the soil and the activity it develops. The humic compounds mediate pesticides and toxins degradation and contaminated soils biological reparation rests on humus help in microbial degradation. The paper presents the results obtained by radicular application of two experimental NPK type fertilizers with humic substances at the sunflower crop in vegetation pots. The fertilizers have been physically and chemically characterized and agrochemically tested as compared to an unfertilized control and two fertilized controls with a complex 15.15.15 NPK fertilizer in 120 and 180 kg/ha doses. The experimental fertilizers were applied in portions upon crops sowing and during vegetation in three 200, 300, respectively 400 liters fertilizer/ha and ensured significant gains as compared to the controls.The extracted humic substances and the fertilizers were physically and chemically characterized as well as through differential thermal gravimetric analysis and FT-IR spectrometry. The vegetal material and the sunflower seeds were analyzed regarding the nitrogen phosphorus, potassium, calcium, magnesium, zinc, copper, iron, and manganese contents.
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Nouraein, Mojtaba. "Effect of Nanofertilizers and Biofertilizers on Yield of Maize: Biplot Analysis." Botanica 25, no. 2 (December 1, 2019): 121–30. http://dx.doi.org/10.2478/botlit-2019-0014.
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AbstractOne of the newest and most interesting fields of science is nanotechnology, which is exploiting many areas such as life sciences; however, its application in agriculture is rarely studied. In order to examine the environmentfriendly fertilizers (nano-sized and biological fertilizers), and control the agricultural nonpoint source pollution from the source, a field experiment was arranged to study the effects of bulk fertilizers (NPK, nitrogen biofertilizer, and phosphorus biofertilizer), nanofertilizers (nanoboron, nanozinc and nanocomplete) and no fertilizer treatment (control) on morphological traits of maize. The first two Principal Components (PCs) were used to create a biplot, which accounted for 72% of the variance of the treatment × trait interaction. The nanozinc fertilizers following nanoboron fertilizer were the best in most of the biological yield, seed yield, harvest index, and 100-grain weight. The vector-view biplot revealed a strong positive association between chlorophyll and protein content, seed yield with the number of kernels per ears and the number of rows per kernel. Nanocomplete fertilizer was the best treatment for chlorophyll content, protein percent and straw yield, while NPK did not high increase in the most traits of maize. This investigation indicated that treatment × trait biplot can graphically show the interrelationships among traits and facilitate visual comparison of fertilizers. In conclusion, it was found that zinc and boron nanofertilizers increased the production of most of the traits in maize. This study indicated that nano types of fertilizers could promote the studied traits in maize plant.
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Esmaeili, Mohammadali, Ayoub Heidarzade, and Mounes Gholipour. "Response of maize to foliar application of zinc and azotobacter inoculation under different levels of urea fertilizer." Journal of Agricultural Sciences, Belgrade 61, no. 2 (2016): 151–62. http://dx.doi.org/10.2298/jas1602151e.
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In order to investigate the effects of zinc and Azotobacter on maize production properties under different regime of urea as mineral fertilizer, an experiment was conducted at research field of Sari Agricultural Sciences and Natural Resources University during the cropping season of 2014. The nitrogen mineral fertilizer in 100, 200 and 300 amounts of kg urea ha-1, Azotobacter (inoculation and non-inoculation) and foliar application of zinc (Zn1 = 1000 mg l-1 zinc sulfate, Zn2 = 500 mg l-1 zinc sulfate and Zn3 = 0 mg l-1) were considered as the applied treatments. Grain yield, biological yield (dry matter), and total protein content of each treatment were assessed. Results indicated that foliar applications of Zn had a significant effect on all studied traits. The highest grain yield was related to Zn1 treatment in each urea application and also between biological fertilizer treatments the highest yield was observed in inoculation treatment. Between all studied treatments the maximum grain yield (with 10.23 ton ha-1) was obtained through non-inoculation treatment ? Zn1 for 300 kg urea ha-1. The highest biological yield was observed in Zn1 + inoculation treatment. There were no significant differences between Azotobacter inoculation and non-inoculation for each level of zinc applications in 300 kg urea ha-1 treatment. Finally, it might be concluded that using of mineral fertilizer could be reduced by combining some management strategies in maize production.
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Wyszkowski, Mirosław, and Marzena S. Brodowska. "Potassium and Nitrogen Fertilization vs. Trace Element Content of Maize (Zea mays L.)." Agriculture 11, no. 2 (January 24, 2021): 96. http://dx.doi.org/10.3390/agriculture11020096.
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This research was conducted to study the impact of potassium and nitrogen fertilizers on the trace element content of maize (Zea mays L.). Higher doses of potassium fertilizer led to a linear increase in cadmium, lead, nickel, zinc, and manganese content, and to lower Fe:Zn and Fe:Mn ratios. Moreover, cobalt level increased in maize upon the lower doses and decreased upon the higher doses of potassium. The impact of potassium fertilizer on the levels of other elements (iron and chromium) in maize was determined by the fertilizer dose and, in particular, by the supply of additional nitrogen. Potassium fertilization led to a higher bioconcentration (BCFactor) of most of the trace elements in the aerial parts of maize. Nitrogen fertilization led to increased contents of manganese and iron, increased Fe:Zn and Fe:Mn ratios, and decreased contents of cadmium, lead, nickel, and cobalt in maize. Compared with potassium, nitrogen fertilization produced less consistent changes in bioconcentration factors for trace elements in the aerial parts of maize.
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Bindraban, Prem S., Christian O. Dimkpa, and Renu Pandey. "Exploring phosphorus fertilizers and fertilization strategies for improved human and environmental health." Biology and Fertility of Soils 56, no. 3 (January 8, 2020): 299–317. http://dx.doi.org/10.1007/s00374-019-01430-2.
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AbstractMineral phosphorus (P) fertilizers support high crop yields and contribute to feeding the teeming global population. However, complex edaphic processes cause P to be immobilized in soil, hampering its timely and sufficient availability for uptake by plants. The resultant low use efficiency of current water-soluble P fertilizers creates significant environmental and human health problems. Current practices to increase P use efficiency have been inadequate to curtail these problems. We advocate for the understanding of plant physiological processes, such as physiological P requirement, storage of excess P as phytate, and plant uptake mechanisms, to identify novel ways of designing and delivering P fertilizers to plants for improved uptake. We note the importance and implications of the contrasting role of micronutrients such as zinc and iron in stimulating P availability under low soil P content, while inhibiting P uptake under high P fertilization; this could provide an avenue for managing P for plant use under different P fertilization regimes. We argue that the improvement of the nutritional value of crops, especially cereals, through reduced phytic acid and increased zinc and iron contents should be among the most important drivers toward the development of innovative fertilizer products and fertilization technologies. In this paper, we present various pathways in support of this argument. Retuning P fertilizer products and application strategies will contribute to fighting hunger and micronutrient deficiencies in humans. Moreover, direct soil P losses will be reduced as a result of improved P absorption by plants.