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Dedicated fertilizer for producing green corn and preparation and application method thereof

A special fertilizer and corn technology, which is applied in the field of special fertilizer for green corn production and its preparation and application, can solve the problems of uncoordinated release ratio, short fertilizer effect period, and corn nutrient stress, so as to improve fertilizer utilization rate, enhance stress resistance, The effect of promoting growth

Active Publication Date: 2012-08-01
锦西天然气化工有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the production and cultivation of spring corn, ordinary fertilizers have a short period of fertilizer effectiveness, and the release of nutrients in fertilizers, especially nitrogen nutrients, is inconsistent with the demand for nutrients in different growth stages of corn. Due to the concentrated release of nutrients or the uncoordinated release ratio of nutrients, fertilizers The utilization rate is low, causing nutrient stress to the corn growth environment. When the corn does not need a large amount of nutrients, it releases a large amount of nutrients into the soil, but when the corn needs a large amount of nutrients, there is not enough nutrient supply, so it produces nutrient stress to the growth of corn. , thus seriously affecting the quality of corn kernels and polluting the agricultural ecological environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] The fertilizer is composed of urine-based nitrogen fertilizer, phosphate fertilizer, potassium fertilizer, medium elements and trace elements, among which the urine-based nitrogen fertilizer is calculated by the pure nitrogen content of urea: ordinary large urea (particle size 2.5-3.5mm) which accounts for 2% of the pure nitrogen content of urea ( Shanxi Orchid brand large granular urea), slow-release urea accounting for 8% of the pure nitrogen in urea, polymer-coated urea with a release period of 45-75 days (produced by Shandong Jinzhengda Co., Ltd.), accounting for 40% of the pure nitrogen in urea, Polymer-coated urea with a release period of 75-110 days with a pure nitrogen content of 50% (produced by Shandong Jinzhengda Company);

[0017] Phosphate fertilizer dosage in P 2 O 5 In total, it is 40% of the pure nitrogen in the urine-based nitrogen fertilizer, superphosphate; the amount of potassium fertilizer is K 2 In terms of O, it is 45% of the pure nitrogen in th...

Embodiment 2

[0022] The fertilizer is composed of urine-based nitrogen fertilizer, phosphate fertilizer, potassium fertilizer, medium elements and trace elements. Among them, the urine-based nitrogen fertilizer is calculated by the pure nitrogen content of urea: ordinary large urea (particle size 2.5-3.5mm) accounting for 5% of the pure nitrogen content of urea, Slow-release urea accounting for 15% of pure nitrogen in urea, polymer-coated urea with a release period of 45-75 days accounting for 30% of pure nitrogen in urea, and polymer with a release period of 75-110 days accounting for 50% of pure nitrogen in urea Urea;

[0023] Phosphate fertilizer dosage in P 2 O 5 In total, it is 50% of the pure nitrogen in the urine-based nitrogen fertilizer, calcium superphosphate; the amount of potassium fertilizer is K 2 In terms of O, it is 60% of the pure nitrogen in the urine-based nitrogen fertilizer, and potassium sulfate is used as the potassium fertilizer. Medium elements, calculated as el...

Embodiment 3

[0028] The fertilizer is composed of urea-based nitrogen fertilizer, phosphorus fertilizer, potassium fertilizer, medium elements and trace elements. The urea-based nitrogen fertilizer is calculated by the amount of urea pure nitrogen: ordinary large urea (particle size 2.5-3.5mm), which accounts for 3% of urea pure nitrogen, Polypeptide urea accounting for 10% of the pure nitrogen content of urea, polymer coated urea with a release period of 45-75 days accounting for 40% of the pure nitrogen content of urea, polymer urea with a release period of 75-110 days accounting for 40% of the pure nitrogen content of urea ;

[0029] Phosphate fertilizer dosage in P 2 o 5 Calculated, it is 55% of the pure nitrogen in urine-based nitrogen fertilizer, monoammonium phosphate; the amount of potassium fertilizer is expressed in K 2 In terms of O, it is 50% of the pure nitrogen in the urine-based nitrogen fertilizer, and potassium chloride is selected as the potassium fertilizer. The mediu...

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Abstract

The invention relates to spring maize cultivation, in particular to a dedicated fertilizer for producing green corn and a preparation and an application method thereof.The fertilizer is composed of urine-based nitrogenous fertilizer, phosphate fertilizer, potash fertilizer, medium elements and trace elements; in the preparation method, the solid raw materials with a grain size of 1.5-4.5mm are selected; then the medium elements are added to humic acid or humic acid salt accounting for 60-100% of the mass percent of the medium elements to be mixed; afterwards, trace elements are added and mixed with the mixture, cementing agent is used for pelleting and producing solid raw materials with a grain size of 1.5-4.5mm for standby use; finally, the medium elements and trace elements mixed for pelleting are uniformly mixed with the urine-based nitrogenous fertilizer, phosphate fertilizer and potash fertilizer.The dedicated corn fertilizer is applied to the corn spring sowing as base fertilizer at one time and no after manuring is not needed.The use level of the urea-based nitrogenous fertilizer in the fertilizer of the invention proportion of the urea-based nitrogenous fertilizer in different release periods are set with proportion of the urea-based nitrogenous fertilizer in different release periods according to fertilizer-demanding characteristics on the nitrogenous fertilizer by the corn in different growth periods to form 4-level supply speed of the fertilizer nitrogen, thus remarkably controlling loss of nitrogenous fertilizer.

Description

technical field [0001] The invention relates to the cultivation and production of spring corn, in particular to a special fertilizer for green corn production and a preparation and application method. Background technique [0002] Common fertilizers have a short fertilizer effect period, unreasonable nutrient distribution ratio, unscientific and unbalanced nutrient supply, and especially the contradiction between nitrogen fertilizers is more prominent. At present, the overall utilization rate of nitrogen is only 30-35%, and the losses of nitrogen leaching, volatilization, and surface runoff are relatively large. The economic benefits of fertilizer application are relatively low, resulting in a huge waste of resources and an increase in agricultural production costs. Pollution of groundwater and soil non-point sources, causing greenhouse gas effect and eutrophication of water bodies, deteriorating the ecological environment. The heavy application of fertilizers and the low u...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C05G1/00C05G3/08A01C21/00C05D9/02C05G3/90
CPCY02P60/21
Inventor 李东坡武志杰
Owner 锦西天然气化工有限责任公司
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