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Biological modification method for sand desertification soil

A sand degradation and soil technology, applied in the field of biological improvement of sand degradation soil, can solve the problem of no effective prevention and control of soil degradation, and achieve the effect of promoting the increase of soil microbial types and numbers, increasing the content, and increasing the active ingredients

Inactive Publication Date: 2008-05-21
INST OF ENVIRONMENT & SUSTAINABLE DEV IN AGRI CHINESE ACADEMY OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is currently no proven method for combating soil degradation

Method used

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  • Biological modification method for sand desertification soil
  • Biological modification method for sand desertification soil
  • Biological modification method for sand desertification soil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The composite microbial agent is composed of bio-humic acid produced by bagasse fermentation and composite microorganisms with a total viable count of 1.8 billion / g. The number of viable composite microorganisms is as follows:

[0031] Bacillus licheniformis ACCC 11080 8%

[0032] Saccharomyces cerevisiae ACCC 20251 10%

[0033] Bacillus subtilis ACCC 11089 20%

[0034] Penicillium oxalicum ACCC 30400 10%

[0035] Streptomyces melanosus ACCC 40028 10%

[0036] Trichoderma harzianum ACCC 30422 42%.

[0037] The bagasse is crushed and stacked in layers in a closed fermentation room, and after continuous fermentation at 20-70°C for 10 days, the humic acid raw material is made, and the raw material is mixed with a compound microbial agent, and processed at room temperature to make a granular preparation after mixing.

[0038] Sprinkle the compound microbial agent into the soil before sowing, and mix well with the plow layer soil. Spray once after spraying the preparati...

Embodiment 2

[0040] The composite microbial agent is composed of bio-humic acid produced by bagasse fermentation and composite microorganisms with a total viable count of 1.8 billion / g. The number of viable composite microorganisms is as follows:

[0041] Bacillus licheniformis ACCC 11080 3%

[0042] Saccharomyces cerevisiae ACCC 20251 15%

[0043] Bacillus subtilis ACCC 11089 5%

[0044] Penicillium oxalicum ACCC 30400 5%

[0045] Streptomyces melanosus ACCC 40028 5%

[0046] Trichoderma harzianum ACCC 30422 67%.

[0047] The bagasse is crushed and stacked in layers in a closed fermentation room, and after continuous fermentation at 20-70°C for 10 days, the humic acid raw material is made, and the raw material is mixed with a compound microbial agent, and processed at room temperature to make a granular preparation after mixing.

[0048] Sprinkle the compound microbial agent into the soil before sowing, and mix well with the plow layer soil. Spray once after spraying the preparation. ...

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Abstract

The invention discloses a method for biological improvement of sand degraded soil. The method adopts the soil restoration preparation compounded by humic acid and microbial agent, which is covered and applied to the degraded sandy soil where licorice is planted after the beginning of spring and before the arrival of summer, and is managed in the field for 1 to 2 years. The invention can rapidly increase the organic matter content of the soil, increase the types and quantities of microorganisms in the soil, thereby improving the ecological environment of the soil, and achieving the purpose of improving sand degraded soil.

Description

technical field [0001] The invention relates to the improvement of sandy degraded soil, in particular, the invention is a biological improvement method of sandy degraded soil. Background technique [0002] my country is one of the countries with the most degraded sandy land in the world, and it is also one of the countries most seriously harmed by desertification. The degraded area of ​​sand in the country reaches 126 million km 2 , mainly distributed in the arid and semi-arid areas of northern my country, and the expansion area is increasing year by year. In the late 1990s (1995-1999), the average annual expansion was 3436km 2 . Degraded cultivated land alone accounts for 40% of the total cultivated land in the country, and degraded grassland accounts for 25% of the usable grassland area; among them, the degraded area of ​​grassland and cultivated land in my country's arid and semi-arid regions has reached 59.5% and 49.6% respectively, much higher than the global Average...

Claims

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Application Information

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IPC IPC(8): C09K17/32C09K101/00
Inventor 郭萍朱昌雄李瑞波于江田云龙刘雪叶婧
Owner INST OF ENVIRONMENT & SUSTAINABLE DEV IN AGRI CHINESE ACADEMY OF AGRI SCI
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