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Straw decomposition method using Lactobacillus acidophilus decomposition accelerator, and applications thereof in saline-alkali soil improvement

A technology of Lactobacillus acidophilus and straw decomposing, which is applied in the field of soil improvement in saline-alkali land, can solve the problems of low carbon mineralization rate of straw, limited effect, and reduction of soil salt content, etc., and achieve a good effect of soil improvement

Inactive Publication Date: 2015-12-02
WEIFANG YOURONG IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] (1) The existing straw decomposition method has a low carbon mineralization rate of straw
[0006] (2) The existing straw decomposition method carries out straw decomposition, and the amount of total nitrogen in straw increases to a limited extent
[0007] (3) The existing straw decomposition method for straw decomposition, the ratio of C / N at the end of composting and initial C / N of composting is relatively high, indicating that straw decomposition is not complete
[0008] (4) After the existing straw decomposing method is applied in saline-alkali soil improvement, the effect of improving saline-alkali land is limited and the cycle is long, and it cannot simultaneously reduce soil salinity, reduce soil pH, increase total nitrogen content in soil, and improve soil quality. Combined effect of air permeability and water holding capacity, improving soil fertility

Method used

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  • Straw decomposition method using Lactobacillus acidophilus decomposition accelerator, and applications thereof in saline-alkali soil improvement
  • Straw decomposition method using Lactobacillus acidophilus decomposition accelerator, and applications thereof in saline-alkali soil improvement

Examples

Experimental program
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Effect test

Embodiment 1

[0031] Embodiment 1 A kind of straw decomposing method adopting Lactobacillus acidophilus decomposing agent

[0032] (1) crushed straw

[0033] The sun-dried rice and highland barley straws are pulverized to 2-3mm particles with special machinery.

[0034] (2) Adjust the C / N ratio and water content of straw

[0035] Dissolve 1.5kg of urea (containing N46.4%) and water at a weight ratio of 1:10, spray evenly on the straw, and adjust the C / N ratio to 30:1; evenly spray the sterilized water on the straw, adjust the straw The moisture content reaches 65%.

[0036] (3) Stacking straw

[0037] The straw pulverized material is stacked in four layers, and the weight ratio of layers from bottom to top is 3:2:1:1.

[0038] (4) Add Lactobacillus acidophilus decomposing agent

[0039] The Lactobacillus acidophilus decomposing agent prepared by the present invention is uniformly added between the straw layers and the uppermost layer, and the decomposing agent is added according to 0...

Embodiment 2

[0057] Embodiment 2 A kind of straw decomposing method adopting Lactobacillus acidophilus decomposing agent

[0058] The straw decomposing method described in Example 1 is adopted, and only the formula of the Lactobacillus acidophilus decomposing agent is changed. The decomposing agent in this example, the mass ratio of each raw material component is:

[0059] 4 parts of compound bacterial agent, 12 parts of Albizia Julibrissin bark, 15 parts of chrysanthemum pollen, 14 parts of Scenedesmus, and 3 parts of brewer's yeast powder.

Embodiment 3

[0060] Embodiment 3 A kind of straw decomposing method adopting Lactobacillus acidophilus decomposing agent

[0061] The straw decomposing method described in Example 1 is adopted, and only the formula of the Lactobacillus acidophilus decomposing agent is changed. The decomposing agent in this example, the mass ratio of each raw material component is:

[0062] 5 parts of compound bacterial agent, 15 parts of Albizia Julibrissin skin, 18 parts of chrysanthemum pollen, 20 parts of Styesmus algae, 6 parts of brewer's yeast powder.

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Abstract

The invention provides a straw decomposition method using Lactobacillus acidophilus decomposition accelerator. The straw decomposition method comprises a step of adding of the Lactobacillus acidophilus decomposition accelerator. The Lactobacillus acidophilus decomposition accelerator is prepared from, by mass, 3 to 5 parts of a composite microbial inoculums, 8 to 15 parts of cortex albiziae, 7 to 18 parts of chrysanthemum powder, 6 to 20 parts of Scenedesmus armatus, and 2 to 6 parts of beer yeast powder. When straw decomposition is carried out via the straw decomposition method, straw charcoal mineralization rate ranges from 17.65 to 19.4%, C / N ratio after composting ranges from 16.0 to 14.5, T value ranges for 0.48 to 0.53. The invention also provides applications of the straw decomposition method in saline-alkali soil improvement, six months later, salt content of soil layer in 10 to 30cm depth ranges from 0.21 to 0.32%, soil pH value ranges from 6.8 to 7.2, soil total nitrogen content ranges from 0.102 to 0.117%, soil air permeability pore rate ranges from 13 to 16%, and soil water capacity ranges from 20 to 26%.

Description

technical field [0001] The invention relates to a straw decomposing method and its application in saline-alkali soil improvement, in particular to a straw decomposing method using Lactobacillus acidophilus decomposing agent and its application in saline-alkali soil improvement, belonging to the technical field of saline-alkali soil improvement . Background technique [0002] The main technologies for regulating saline-alkali soil structure in my country include: rational irrigation and drainage, tillage, and improvement of polymer compounds. Reasonable irrigation and drainage can not fundamentally solve the problem of poor soil structure because it has little effect on soil water stability and aggregates; farming is affected by soil moisture, and the soil structure formed cannot be permanent; the amount of polymer compound used to improve soil is small and the effect is great , but the current research in our country is limited to the preparation of polymer compounds and fie...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G1/00C05F11/00C05F17/00A01B79/02
CPCY02W30/40
Inventor 王胜
Owner WEIFANG YOURONG IND
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