Biological organic slow-release fertilizer and preparation method thereof

A slow-release fertilizer and organic technology, which is applied in the field of bio-organic slow-release fertilizer and its preparation, can solve the problems of inability to be adsorbed by soil, volatile ammonia, and high nitrogen loss, and achieves simple preparation method, high absorption rate, and soil damage. slowing effect

Active Publication Date: 2012-09-05
江苏科邦生态肥有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Nitrogen is the most important nutrient element for crop growth. Urea is the most important variety of nitrogen fertilizer. Urea is suitable for all crops and all soils. It can be used as base fertilizer and topdressing fertilizer. It can be applied in both dry and paddy fields. However, urea is a molecule before transformation. In the state, it cannot be absorbed by the soil and is lost with water. The ammonia formed after transformation is also volatile. The loss of nitrogen in the soil is too high, the utilization rate is only 30%-40%, and the fertilizer effect period is only about 50 days. Waste also brings enormous pressure to the atmospheric environment and water environment, and is a serious non-point source of pollution.

Method used

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Examples

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Comparison scheme
Effect test

Embodiment 1

[0010] Example 1: Bio-organic slow-release fertilizer, the weight parts of its raw materials are: 50 parts of urea, 10 parts of sawdust, 10 parts of epoxy resin, 5 parts of polyisoglutaric acid, 3 parts of dihydroxyformic acid, 20 parts of bran, polymer water-retaining 3 parts of agent, 10 parts of humic acid, 10 parts of straw ash, 8 parts of clay, 5 parts of monoammonium phosphate, 3 parts of calcium powder, 2 parts of potassium sulfate, 3 parts of ferrous sulfate and 3 parts of nitrogen-fixing bacteria fertilizer.

[0011] The preparation method of described bio-organic slow-release fertilizer, comprises the following steps:

[0012] Weigh each raw material according to the weight of the constituent raw materials, pulverize it, and put it into the fermentation tank. The clay is added in the form of mud, and the water content of the material is 40-50%. Dry at low temperature at ℃ to keep the water content at 8-10%, and finally granulate to obtain bio-organic slow-release fe...

Embodiment 2

[0013] Example 2: Bio-organic slow-release fertilizer, the weight parts of its raw materials are: 60 parts of urea, 20 parts of sawdust, 20 parts of epoxy resin, 10 parts of polyisoglutaric acid, 8 parts of dihydroxyformic acid, 30 parts of bran, polymer water retention 8 parts of agent, 15 parts of humic acid, 15 parts of straw ash, 12 parts of clay, 10 parts of monoammonium phosphate, 5 parts of calcium powder, 5 parts of potassium sulfate, 8 parts of ferrous sulfate and 5 parts of nitrogen-fixing bacteria fertilizer.

[0014] The preparation method of described bio-organic slow-release fertilizer, comprises the following steps:

[0015] Weigh each raw material according to the weight of the constituent raw materials, pulverize it, and put it into the fermentation tank. The clay is added in the form of mud, and the water content of the material is 40-50%. Dry at low temperature at ℃ to keep the water content at 8-10%, and finally granulate to obtain bio-organic slow-releas...

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PUM

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Abstract

The invention discloses a biological organic slow-release fertilizer and a preparation method thereof. The biological organic slow-release fertilizer is prepared by mixing and fermenting urea, saw dust, epoxy resin, poly(glutamic acid), dyhydroxy formic acid, bran, high-molecule water-retaining agent, humic acid, straw ash, clay, monoammonium phosphate, calcium powder, potassium sulfate, ferrous sulfate and nitrogen-fixing bacteria fertilizer according to a certain weight part. The preparation method is simple; the prepared biological organic slow-release fertilizer can effectively supply lodging resistance, disease resistance and drought resistance to crops and is high in crop absorption rate; and furthermore, the utilization rate of the fertilizer is increased, and the harm to the soil is correspondingly reduced.

Description

technical field [0001] The invention relates to the field of organic fertilizer manufacturing, in particular to a bio-organic slow-release fertilizer and a preparation method thereof. Background technique [0002] Nitrogen is the most important nutrient element for crop growth. Urea is the most important variety of nitrogen fertilizer. Urea is suitable for all crops and all soils. It can be used as base fertilizer and topdressing fertilizer. It can be applied in both dry and paddy fields. However, urea is a molecule before transformation. In the state, it cannot be absorbed by the soil and is lost with water. The ammonia formed after transformation is also volatile. The loss of nitrogen in the soil is too high, the utilization rate is only 30%-40%, and the fertilizer effect period is only about 50 days. Waste also brings enormous pressure to the atmospheric environment and water environment, and is a serious non-point source pollution source. Contents of the invention [...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00C05G3/04C05G3/80
Inventor 杨红兵刘俊秋陈金华
Owner 江苏科邦生态肥有限公司
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