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

A special fertilizer and corn technology, applied in the field of green corn production special fertilizer and preparation and application, can solve the problems of uncoordinated release ratio, short fertilizer effect period, corn nutrient stress, etc., to improve fertilizer utilization rate, enhance stress resistance, Growth-promoting effect

Active Publication Date: 2010-06-23
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 urea-based nitrogen fertilizer, phosphate 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) accounting for 2% of urea pure nitrogen ( Shanxi Lanhua brand large granular urea), slow-release urea accounting for 8% of the pure nitrogen content of urea, polymer-coated urea (produced by Shandong Jinzhengda Company) with a release period of 45-75 days accounting for 40% of the pure nitrogen content of urea, accounting for Polymer-coated urea (produced by Shandong Jinzhengda Company) with a release period of 75-110 days of 50% pure nitrogen content;

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

Embodiment 2

[0022] 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 5% of the amount of urea pure nitrogen, Slow-release urea accounting for 15% of the pure nitrogen content of urea, polymer-coated urea with a release period of 45-75 days accounting for 30% of the pure nitrogen content of the urea, polymer-coated urea with a release period of 75-110 days accounting for 50% of the pure nitrogen content of the urea urea;

[0023] Phosphate fertilizer dosage in P 2 o 5 Calculated, it is 50% of the pure nitrogen in urine-based nitrogen fertilizer, superphosphate; the amount of potassium fertilizer is expressed in K 2 In terms of O, it is 60% of the pure nitrogen in the urine-based nitrogen fertilizer, and potassium sulfate is selected as the potassi...

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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PUM

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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 its preparation and application method. Background technique [0002] Ordinary fertilizers have a short period of effectiveness, unreasonable nutrient distribution ratio, unscientific and unbalanced nutrient supply, especially the contradiction of nitrogen fertilizer is more prominent. At present, the overall utilization rate of nitrogen is only 30-35%. Nitrogen leaching, volatilization, surface runoff and other losses are relatively large, and the economic benefits of fertilizer application are 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. Extensive application of fertilizers and low utilization rates degrad...

Claims

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Application Information

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Patent Type & Authority Applications(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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