Straw biological decomposing method adopting scenedesmus obliquus decomposing agent and application of straw biological decomposing method in conditioning soil structure of saline and alkaline land

An algal decomposing agent and a technology of straw biology, which are applied to the straw decomposing method and the field of soil structure conditioning in saline-alkali land, can solve the problem that the soil air permeability cannot be effectively increased, the microbial content can be increased, and the soil salt content, soil pH and soil bulk density cannot be effectively increased. And other issues

Inactive Publication Date: 2015-11-18
WEIFANG YOURONG IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] (3) The straw that is decomposed by the existing straw bio-decomposition method has a higher T value
[0008] (4) The straw that is decomposed by the existing straw bio-decomposition method has a certain inhibitory effect on seed germination, and the seed germination rate is low
[0009] (5) After the existing straw bio-decomposition method is applied in the soil structure conditioning of saline-alkali land, while reducing soil salinity, soil pH and soil bulk density, it cannot effectively increase soil air pores, improve soil water retention capacity, and increase soil microorganisms. content, improve soil fertility

Method used

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  • Straw biological decomposing method adopting scenedesmus obliquus decomposing agent and application of straw biological decomposing method in conditioning soil structure of saline and alkaline land
  • Straw biological decomposing method adopting scenedesmus obliquus decomposing agent and application of straw biological decomposing method in conditioning soil structure of saline and alkaline land

Examples

Experimental program
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Effect test

Embodiment 1

[0034] Embodiment 1 A kind of straw bio-decomposition method using Scenedesmus obliquus decomposing agent

[0035] (1) Crush the straw

[0036] The sun-dried corn and sorghum stalks are mechanically crushed to 2-3mm particles, and the mass ratio of corn stalks to sorghum stalks is 1:1.

[0037] (2) Adjust straw C / N ratio and water content

[0038] The organic carbon content of the straw was 380g / kg, and the C / N ratio was adjusted to 33:1; the water content of the straw was adjusted to 67%.

[0039] (3) Lay straw and add Scenedesmus obliquus decomposing agent

[0040] Dig a decomposition pit, lay the first layer of straw, the first layer of straw accounts for 1 / 3 of the total straw weight, and evenly add 0.6% of the weight of the first layer of straw to the first layer of straw. The second layer of straw, the first layer of straw accounts for 1 / 3 of the total straw weight, evenly add 0.55% of the second layer of straw weight Scenedesmus oblique decomposing agent; lay the t...

Embodiment 2

[0055] Embodiment 2 A kind of straw biodecomposition method using Scenedesmus obliquus decomposing agent

[0056] Using the straw decomposing method described in Example 1, only the formula of Scenedesmus obliquus decomposing agent is changed, the decomposing agent described in this embodiment, the mass ratio of each raw material component is:

[0057] 34 parts of Scenedesmus oblique, 7 parts of compound bacterial agent, 32 parts of reed root, 27 parts of camellia pollen.

Embodiment 3

[0058] Embodiment 3 A kind of straw biodecomposition method using Scenedesmus obliquus decomposing agent

[0059] Using the straw decomposing method described in Example 1, only the formula of Scenedesmus obliquus decomposing agent is changed, the decomposing agent described in this embodiment, the mass ratio of each raw material component is:

[0060] 36 parts of Scenedesmus obliquus, 9 parts of compound bacterial agent, 38 parts of reed root, 31 parts of camellia pollen.

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Abstract

The invention provides a straw biological decomposing method adopting a scenedesmus obliquus decomposing agent. The method comprises: paving straws; and adding the scenedesmus obliquus decomposing agent which comprises the raw materials in parts by mass: 28-36 parts of scenedesmus obliquus, 6-9 parts of a composite fungicide, 30-38 parts of rhizoma phragmitis and 25-31 parts of camellia pollen. According to the straws decomposed by virtue of the straw biological decomposing method, the content of organic carbon is 295-315 k/kg, the mineralization rate is 17.1-22.4%, the content of total nitrogen is 18.28-19.96 g/kg, C/N is 14.78-17.23, and T value is 0.45-0.52; the germination rate of seeds is 94.1-95.7%. According to application of the straw biological decomposing method in conditioning a soil structure of a saline and alkaline land, the salt content, the pH and the volume weight of the soil can be reduced, the gas permeability and the microbial content of the soil are increased, and the water retaining capacity and the fertility of the soil are improved.

Description

technical field [0001] The present invention relates to a straw decomposing method and its application in saline-alkali soil structure conditioning, in particular to a straw biological decomposition method using Scenedesmus obliquus decomposing agent and its application in saline-alkali soil structure conditioning, belonging to saline-alkali land Soil improvement technology field. Background technique [0002] Technical measures for soil structure conditioning in saline-alkali land, including modern water conservancy construction technology, agricultural technology, and chemical improvement technology; among them, water conservancy construction technology mainly includes technologies such as open ditch drainage, hidden pipe drainage, shaft irrigation and drainage, channel seepage prevention, and spray irrigation salt ;Agricultural technology includes traditional dry salt discharge technology, timely plowing and intertillage, flood irrigation to press salt, increasing applica...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/04C05F17/00C05G3/80
CPCY02W30/40
Inventor 王胜
Owner WEIFANG YOURONG IND
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