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Straw biological decomposition method by adoption of lactobacillus casei decomposition accelerator and application thereof in recarburization and fertilization in saline-alkali soil

A technology of Lactobacillus casei and straw organisms is applied in the field of saline-alkali soil improvement, and can solve the problems of reducing soil salt content, low rot maturity of straw, and low seed germination index and germination rate.

Inactive Publication Date: 2015-11-11
WEIFANG YOURONG IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] (1) The cation exchange capacity of the straw decomposed by the existing straw decomposing method is low
[0006] (2) The existing straw decomposing method carries out straw decomposing, the ratio of C / N at the end of decomposing and the initial C / N of decomposing is relatively high, and the decomposing of straw is not complete
[0007] (3) The existing straw decomposing method decomposes the straw products, the degree of straw decomposing is low, and the seed germination test has a certain poisonous effect on the seeds, and the germination index and germination rate of the seeds are low
[0008] (4) After the existing straw decomposing method is applied to carbon enrichment and fertilization of saline-alkali soil, the improvement cycle is long, and it does not effectively reduce soil salt content, reduce soil pH, improve soil structure, increase soil porosity, and improve soil quality. The organic matter content in the soil, the comprehensive effect of improving the fertility of the soil

Method used

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  • Straw biological decomposition method by adoption of lactobacillus casei decomposition accelerator and application thereof in recarburization and fertilization in saline-alkali soil
  • Straw biological decomposition method by adoption of lactobacillus casei decomposition accelerator and application thereof in recarburization and fertilization in saline-alkali soil

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Experimental program
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Effect test

Embodiment 1

[0032] Embodiment 1 A kind of straw biological decomposing method using Lactobacillus casei decomposing agent

[0033] (1) Crush the straw

[0034] The sun-dried rice straw and wheat straw are pulverized into 2-3mm particles with a special machine, and the mass ratio of the rice straw and wheat straw is 1:2.

[0035] (2) Adjust straw C / N ratio and water content

[0036] Dissolve 2kg of urea and water at a weight ratio of 1:10, and spray evenly on the straw, adjust the C / N ratio to 32:1; adjust the water content of the straw to 70%.

[0037] (3) Pile up straw

[0038] The crushed straw is stacked in four layers, and the layer weight ratio from bottom to top is 4:3:2:1.

[0039] (4) Add Lactobacillus casei decomposing agent

[0040] The Lactobacillus casei decomposing agent prepared by the present invention is evenly added between the straw layers and the uppermost layer, and the decomposing agent is added according to 0.49% of the weight of the straw layer.

[0041] (5) ...

Embodiment 2

[0055] Embodiment 2 A kind of straw biological decomposing method using Lactobacillus casei decomposing agent

[0056] Adopt the straw decomposing method described in embodiment 1, only change the prescription of Lactobacillus casei decomposing agent, decomposing agent described in the present embodiment, the mass ratio of each raw material component is:

[0057] 5 parts of compound bacterial agent, 30 parts of Ophiopogon japonicus, 20 parts of rapeseed pollen, 28 parts of Scenedesmus four.

Embodiment 3

[0058] Embodiment 3 A kind of straw biodecomposition method using Lactobacillus casei decomposing agent

[0059] Adopt the straw decomposing method described in embodiment 1, only change the prescription of Lactobacillus casei decomposing agent, decomposing agent described in the present embodiment, the mass ratio of each raw material component is:

[0060] 7 parts of compound bacteria agent, 36 parts of Ophiopogon japonicus, 26 parts of rapeseed pollen, 33 parts of Scenedesmus four.

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Abstract

The invention provides a straw biological decomposition method by the adoption of a lactobacillus casei decomposition accelerator. The method comprises the step of adding the lactobacillus casei decomposition accelerator, the decomposition accelerator is composed of, by mass, 3-7 parts of complex microbial inoculants, 24-36 parts of radix ophiopogonis, 15-26 parts of rape flower pollen and 22-33 parts of scenedesmus quadricauda breb, according to the straw which is subjected to the decomposition treatment by means of the straw decomposition method, the cation exchange capacity is 70.4-72.6 cmol / kg, when the decomposition is finished, C / N is 14.23-15.15, T is 0.44-0.47, the germination index of seeds is 108.6-110.8%, and the germination rate of the seeds is 83.4-94.6%. The invention further provides the application of the method in recarburization and fertilization in saline-alkali soil, by means of the application, the soil salinity and soil pH can be reduced remarkably, the soil structure can be improved, the soil pores can be increased, the organic contents in the soil can be improved, and the soil fertility can be enhanced.

Description

technical field [0001] The present invention relates to a straw decomposing method and its application in soil carbonization and fertilization in saline-alkali land, in particular to a straw biological decomposition method using Lactobacillus casei decomposing agent and its application in saline-alkali soil carbonization and fertilization. The invention belongs to the technical field of saline-alkali soil improvement. Background technique [0002] The area of ​​saline-alkali soil in my country reaches 520 million mu, among which saline-alkali barrier cultivated land and saline-alkali land with agricultural development potential account for more than half of all saline-alkali land, and there are still about 260 million mu of potential salinized soil. Very prone to secondary salinization. Carbon enrichment and fertilization of saline-alkali soil not only involves effectively reducing the salinity and alkalinity of the soil, but also involves improving soil structure, reasonabl...

Claims

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Application Information

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IPC IPC(8): C05F11/00C05F17/00A01B79/02
CPCY02W30/40
Inventor 王胜
Owner WEIFANG YOURONG IND
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