Organic fertilizer capable of reducing soil heavy-metal pollution and preparation method of organic fertilizer

A technology of heavy metals and organic fertilizers, applied in the direction of organic fertilizers, inorganic fertilizers, and fertilizers made from biological waste, can solve problems such as increased soil heavy metal content, increased soil heavy metal content, and threats to the quality and safety of agricultural products to meet the needs of plant growth. Effects of demand, reduction of absorption and enrichment, improvement of quality and use value

Inactive Publication Date: 2017-09-05
广西浩昌敏再生资源利用有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Due to the extensive use of heavy metal-containing feed additives and the increase of urban solid waste, a large number of heavy metal pollutants exist in organic fertilizer materials such as livestock manure and urban sludge, resulting in continuous increase in soil heavy metal content. In addition, long-term use of fertilizers containing ammonium nitrate Ammonium phosphate fertilizers can also increase the content of heavy metals in the soil. As the content of heavy metals entering the soil increases, the effective content of heavy metals in the soil will also increase, and the absorption of crops will also increase accordingly, resulting in the occurrence of excessive heavy metals in crops. Long-term use poses a threat to the quality and safety of agricultural products

Method used

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  • Organic fertilizer capable of reducing soil heavy-metal pollution and preparation method of organic fertilizer
  • Organic fertilizer capable of reducing soil heavy-metal pollution and preparation method of organic fertilizer

Examples

Experimental program
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Effect test

Embodiment 1

[0031] Present embodiment is a kind of organic fertilizer that reduces heavy metal pollution of soil, comprises the raw material of following parts by weight: 35 parts of corn cobs, 25 parts of cow dung, 20 parts of vermicompost, 20 parts of sugar residues, 12 parts of peanut meal, 5 parts of animal urine 1 part, 3 parts of plant ash, 10 parts of coconut shell, 1 part of compound enzyme agent and 10 parts of compound modifier; wherein the water content of corn cob is 50%;

[0032] The compound enzyme preparation is made of the following raw materials in parts by weight: 1 part of endopeptidase, 0.3 part of pectinase, 0.1 part of papain, 0.4 part of xylanase and 0.8 part of α-amylase;

[0033] The composite modifier is made of the following raw materials in parts by weight: 4 parts of sodium potassium tartrate, 8 parts of ethanol, 5 parts of sodium hydroxide, 2 parts of calcium chloride, 1 part of sodium nitrate, 3 parts of potassium silicate and silicon 0.5 parts of acid sol; ...

Embodiment 2

[0041] The present embodiment is a kind of organic fertilizer that reduces soil heavy metal pollution, including the following raw materials in parts by weight: 40 parts of corncobs, 32 parts of cow dung, 26 parts of vermicompost, 25 parts of sugar residue, 16 parts of peanut meal, 9 parts of animal urine 6 parts, 6 parts of plant ash, 13 parts of coconut shell, 3 parts of compound enzyme agent and 13 parts of compound modifier; wherein the water content of corncob is 60%;

[0042] The compound enzyme preparation is made of the following raw materials in parts by weight: 1.5 parts of endopeptidase, 0.5 part of pectinase, 0.3 part of papain, 0.8 part of xylanase and 1.3 parts of α-amylase;

[0043]The composite modifier is made of the following raw materials in parts by weight: 9 parts of sodium potassium tartrate, 15 parts of ethanol, 9 parts of sodium hydroxide, 6 parts of calcium chloride, 4 parts of sodium nitrate, 7 parts of potassium silicate and silicon 1 part of acid so...

Embodiment 3

[0051] The present embodiment is a kind of organic fertilizer that reduces heavy metal pollution in soil, comprising the following raw materials in parts by weight: 38 parts of corncobs, 30 parts of cow dung, 25 parts of vermicompost, 23 parts of sugar residue, 15 parts of peanut meal, 7 parts of animal urine 5 parts of plant ash, 12 parts of coconut shell, 2 parts of compound enzyme agent and 12 parts of compound modifier; wherein the water content of corn cob is 55%;

[0052] The compound enzyme preparation is made of the following raw materials in parts by weight: 1.3 parts of endopeptidase, 0.4 parts of pectinase, 0.2 parts of papain, 0.6 parts of xylanase and 1.2 parts of α-amylase;

[0053] The composite modifier is made of the following raw materials in parts by weight: 6 parts of sodium potassium tartrate, 11 parts of ethanol, 7 parts of sodium hydroxide, 3 parts of calcium chloride, 3 parts of sodium nitrate, 6 parts of potassium silicate and silicon 0.7 parts of acid...

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PUM

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Abstract

The invention discloses organic fertilizer capable of reducing soil heavy-metal pollution and a preparation method of the organic fertilizer and relates to the field of fertilizer. The organic fertilizer is prepared from corncobs, cow dung, wormcast, candy pomace, peanut meal, animal urine, plant ash, coconut root-bark, a composite enzyme agent and a composite modifier. By the arrangement, nutrient substances needed by plants can be provided, heavy metals in soil can be adsorbed and passivated, absorption and concentration of the plants on the heavy metals are reduced, quality and use value of the fertilizer are improved, and low cost is achieved; after the organic fertilizer is used for growing crops in the soil seriously polluted by the heavy metals, no excessive heavy metal phenomenon appears in the detected plants, and safety of agricultural products is effectively improved.

Description

[0001] 【Technical field】 [0002] The invention relates to the technical field of fertilizers, in particular to an organic fertilizer for reducing soil heavy metal pollution and a preparation method thereof. [0003] 【Background technique】 [0004] Due to the extensive use of heavy metal-containing feed additives and the increase of urban solid waste, a large number of heavy metal pollutants exist in organic fertilizer materials such as livestock and poultry manure and urban sludge, resulting in continuous increase in soil heavy metal content. In addition, long-term use of ammonium nitrate containing Ammonium phosphate fertilizers can also increase the content of heavy metals in the soil. As the content of heavy metals entering the soil increases, the effective content of heavy metals in the soil will also increase, and the absorption of crops will also increase accordingly, resulting in the occurrence of excessive heavy metals in crops. Long-term use poses a threat to the qual...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/04C05G3/00C05G3/80
CPCC05C5/02C05G3/00C05G3/80C05D1/00C05D9/00C05F1/00C05F3/00C05F5/002C05F5/006
Inventor 常远
Owner 广西浩昌敏再生资源利用有限公司
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