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Compound fertilizer, preparation method and application of compound fertilizer

A technology of compound fertilizer and fertilizer synergist, applied in fertilization methods, urea compound fertilizer, application and other directions, can solve the problems of excessive nitrate nitrogen in groundwater, death of aquatic organisms, eutrophication of water bodies, etc. Slow release effect, nutrient utilization efficiency improvement effect

Inactive Publication Date: 2017-09-08
贵州天宝丰原生态农业科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A large number of chemical fertilizers enter the water body and the atmosphere through volatilization, leaching, runoff, etc., leading to aggravation of the greenhouse effect, eutrophication of the water body, causing a series of problems such as algae growth, water quality deterioration, aquatic life death, and large areas of groundwater nitrate nitrogen exceeding the standard.

Method used

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  • Compound fertilizer, preparation method and application of compound fertilizer
  • Compound fertilizer, preparation method and application of compound fertilizer
  • Compound fertilizer, preparation method and application of compound fertilizer

Examples

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Effect test

preparation example Construction

[0055] Wherein the preparation method of active diatomite:

[0056] (1) Take 10-20g of diatomaceous earth and put it in a beaker, add 50-200mL of 0.1-1mol / L NaOH solution, put it in a magnetic stirrer and stir for 2-4h, then centrifuge in a centrifuge at a speed of 5000rpm for 5min, collect Lower diatomaceous earth;

[0057] (2) Add 100-500mL of diatomite to the collected lower layer of diatomite and soak for 10-30min to remove residual NaOH, centrifuge again at 5000rpm for 5min, and re-collect the lower layer of diatomite;

[0058] (3) Add 100-200mL of methanol to the re-collected lower layer of diatomite, magnetically stir for 10-30min, and centrifuge at 5000rpm for 5min to collect the lower layer of diatomite;

[0059] (4) Add 100-200mL 3-aminopropyltriethoxysilane solution with a volume ratio of 10% to the obtained diatomite, stir in a magnetic stirrer at a temperature of 40°C for 20min, and then Centrifuge at 5000rpm for 5min to collect the active diatomaceous earth in ...

Embodiment 1

[0090] Mix and stir the urea of ​​20 parts by weight, the ammonium sulfate of 15 parts by weight, the monoammonium phosphate of 10 parts by weight, the potassium sulfate of 55 parts by weight, the cyclodextrin of 0.5 parts by weight and the gamma-polyglutamic acid of 0.5 parts by weight, After extruding, granulating and sieving, the compound fertilizer is obtained.

[0091] γ-polyglutamic acid is wettable powder of γ-polyglutamic acid.

Embodiment 2

[0093] The urea of ​​30 parts by weight, the ammonium sulfate of 10 parts by weight, the monoammonium phosphate of 15 parts by weight, the potassium sulfate of 45 parts by weight, the cyclodextrin of 5 parts by weight and the gamma-polyglutamic acid of 0.2 parts by weight are mixed and stirred, After extruding, granulating and sieving, the compound fertilizer is obtained.

[0094] γ-polyglutamic acid is wettable powder of γ-polyglutamic acid.

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Abstract

The invention provides a compound fertilizer, a preparation method and application of the compound fertilizer and relates to the technical field of fertilizers. The compound fertilizer comprises a nitrogenous fertilizer, a phosphate fertilizer, a potassium fertilizer, cyclodextrin and gamma polyglutamic acid, wherein the weight part ratio of N:P2O5:K2O is (10-20):(3-8):(20-30); the cyclodextrin accounts for 0.5%-5% of the total weight of the nitrogenous fertilizer, the phosphate fertilizer and the potassium fertilizer; the gamma polyglutamic acid accounts for 0.1%-1% of the total weight of the nitrogenous fertilizer, the phosphate fertilizer and the potassium fertilizer. The problems that the use ratio is lowered and the environment is polluted due to large use of fertilizers are solved, the compound fertilizer can meet the crop requirements through the effect of mutual matching of the nitrogenous fertilizer, the phosphate fertilizer, the potassium fertilizer, the cyclodextrin and the gamma polyglutamic acid, the purpose of combination of quick acting, long acting, synergism and water retention is realized, the fertilizer utilization rate is improved, the fertilizer efficiency period is prolonged, the crop root system is developed after the compound fertilizer is applied, the blades are fleshy, the fruits are large, and the problems of fertilizer absorption suspension and disorder and the like are solved.

Description

technical field [0001] The invention relates to the technical field of fertilizers, in particular to a compound fertilizer, a preparation method and an application thereof. Background technique [0002] China is a large agricultural country, and it is also a country with the largest arid and semi-arid area. Therefore, drought resistance and moisture conservation are an important link in agricultural production. 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. [0003] At present, the main problem in the application of chemical fertilizers is that most of the fertilizers used are ordinary quick-acting chemical fertilizers, and unreasonable fertilization measures reduce the utilization rate of fertilizers, resulting in waste of resources, environmental pollution and decline in the quality of agricultural product...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00A01C21/00
CPCC05B7/00A01C21/00C05G3/00C05C3/00C05C9/00C05C11/00C05D1/02
Inventor 何真学赖涛何池袁小飞
Owner 贵州天宝丰原生态农业科技有限公司
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