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Composite modifier for gleyed soil and application thereof

A technology of amendment and germination, which is applied in the field of compound amendments for cultivating soil, can solve the problems of poor improvement effects such as soil aggregate structure, soil permeability, etc., so as to reduce the content of soil reducing substances and improve the oxidation The effect of reducing potential and improving permeability

Active Publication Date: 2017-03-08
INST OF SOIL FERTILIZER & RESOURCE ENVIRONMENT JIANGXI ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defects of poor improvement effects on soil aggregate structure and soil permeability in the existing gleization paddy field improvement method, thereby providing a better effect for gleization Soil compound improver

Method used

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  • Composite modifier for gleyed soil and application thereof
  • Composite modifier for gleyed soil and application thereof
  • Composite modifier for gleyed soil and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] A compound improver for gleization soil, comprising the following components by weight:

[0056] 8 parts of quicklime; 23 parts of fly ash; 57 parts of fermented and decomposed cow dung; 12 parts of fermented and decomposed rapeseed dry cake. The four components are mixed evenly to make a compound improver.

[0057] The preparation method of the fermented and decomposed cow dung is as follows:

[0058] Mix fresh cow dung, grain bran and urea evenly in a weight ratio of 673:320:7, then add 0.5% of the total weight of the mixture as an organic material decomposing agent, and then adjust the moisture content to 55%, stack and ferment, every 2- Turn over once every 3 days, decompose after 15-20 days, and dry it for later use. The nutrient content of cow dung (fresh base) is N 0.40%, P 2 o 5 0.10%, K 2 O 0.23%.

[0059] The preparation method of the fermented and decomposed rapeseed dry cake is as follows:

[0060] Mix rapeseed dry cake and rice bran evenly at a weig...

Embodiment 2

[0063] A compound improver for gleization soil, comprising the following components by weight:

[0064] 5 parts of quicklime; 30 parts of fly ash; 50 parts of fermented and decomposed cow dung; 15 parts of fermented and decomposed rapeseed dry cake. The four components are mixed evenly to make a compound improver.

[0065] The preparation method of the fermented and decomposed cow dung is as follows:

[0066] Mix fresh cow dung, grain bran and urea evenly in a weight ratio of 645:350:5, then add 0.5% of the total weight of the mixture as an organic material decomposing agent, and then adjust the moisture content to 55%, stack and ferment, every 2- Turn over once every 3 days, decompose after 15-20 days, and dry it for later use. The nutrient content of cow dung (fresh base) is N 0.44%, P 2 o 5 0.13%, K 2 O 0.28%.

[0067] The preparation method of the fermented and decomposed rapeseed dry cake is as follows:

[0068] Mix rapeseed dry cake and grain bran evenly at a wei...

Embodiment 3

[0085] A compound improver for gleization soil, comprising the following components by weight:

[0086] 10 parts of quicklime; 20 parts of fly ash; 60 parts of fermented and decomposed cow dung; 10 parts of fermented and decomposed rapeseed dry cake. The four components are mixed evenly to make a compound improver.

[0087] The preparation method of the fermented and decomposed cow dung is as follows:

[0088] Mix fresh cow dung, grain bran and urea evenly in a weight ratio of 690:300:10, then add 0.5% of the total weight of the mixture as an organic material decomposing agent, and then adjust the moisture content to 55%, stack and ferment, every 2- Turn over once every 3 days, decompose after 15-20 days, and dry it for later use. The nutrient content of cow dung (fresh base) is N 0.35%, P 2 o 5 0.09%, K 2 O 0.19%.

[0089] The preparation method of the fermented and decomposed rapeseed dry cake is as follows:

[0090] Mix rapeseed dry cake and rice bran evenly at a we...

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Abstract

The invention relates to the field of soil improvement, and in particular relates to a composite modifier for gleyed soil. The modifier comprises the following components in parts by weight: 5-10 parts of quicklime, 20-30 parts of fly ash, 50-60 parts of fermented and decomposed cow dung, and 10-15 parts of fermented and decomposed rapeseed cakes. The invention further provides an application method of the composite modifier in improvement of the gleyed soil. The composite improver disclosed by the invention is applied to a gleyed rice field, the physical and chemical properties of the soil are improved, the soil porosity is increased; the soil permeability is improved, the soil volume weight is reduced, the structure of the soil agglomeration body is improved, the soil acidification degree is reduced, the soil redox potential is increased, the total amount of the soil reducing substances is reduced, the soil toxicity is reduced; the quick-acting nutrient content of the soil is increased, the yield of the rice is promoted by more than 10%, and the improved effect is very remarkable.

Description

technical field [0001] The invention relates to the field of soil improvement, in particular to a composite improver for gleization soil and its application. Background technique [0002] The gleization paddy soil is a reducing paddy soil developed under long-term flooding conditions. Due to long-term flooding, the structure of the soil aggregates is destroyed, the soil permeability deteriorates, and the rhizosphere environment is mostly hypoxic, and the reducing properties are toxic. material accumulation. This type of soil has low productivity and is one of the main low-yielding paddy soil types in my country. Cultivation of rice on gleization paddy soil will lead to poor root development and slow growth of rice, which will seriously affect rice yield. Studies have shown that the rice yield of strongly gleized paddy fields is only about half of that of non-glened paddy fields or even lower. The area of ​​gleized rice fields in my country reaches 4.0×10 6 hm 2 Among th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/04C05G3/80
CPCC05C9/00C05D3/02C05F5/002C05G3/80C05D9/00C05F9/04C05F3/00C05F11/08C05F17/00
Inventor 刘益仁侯红乾冀建华刘秀梅吕真真王福全刘光荣彭春瑞冯兆滨杨成春
Owner INST OF SOIL FERTILIZER & RESOURCE ENVIRONMENT JIANGXI ACAD OF AGRI SCI
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