Compound biological soil improver and preparation method thereof

A technology of biological soil improvement and soil improver, which is applied in the direction of biochemical equipment and methods, methods based on microorganisms, microorganisms, etc., can solve the problems of agricultural product quality decline, groundwater pollution, environmental pollution, etc., and increase crop yield and infection rate. Reduced, significant effect
CN101760202AInactive Publication Date: 2010-06-30上海拜森生物技术有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
上海拜森生物技术有限公司
Publication Date
2010-06-30
Estimated Expiration
Not applicable · inactive patent
Patent Text Reader

Abstract

The invention discloses a compound biological soil improver taking a compound biological bacterium as a core. The invention also discloses a preparation method of the compound biological soil improver, which comprises the following steps of: respectively carrying out liquid deep-layer high-density culture on the soil improver to obtain fermentation broth; carrying gout centrifugal treatment on the fermentation broth and then collecting bacterial mud; adding a protective agent to prepare frozen dry powder; and taking the compound biological bacterium as the core and mixing the required powdery organic fertilizer and perlite to obtain the compound biological soil improver. The compound biological soil improver has high active bacterial quantity, can be preserved at normal temperature for a long term, can be mixed with organic soil and inorganic soil improvers for use without being influenced and has remarkable effect for preventing and controlling the soil-borne disease.
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Description

technical field

[0001] The invention relates to a soil improver, in particular to a biological compound soil improver; in addition, the invention also relates to a preparation method of the biological compound soil improver. Background technique

[0002] my country is a country with a large population and a large agriculture. It uses 7% of the world's land to feed 22% of the world's population. The food issue is always a major issue related to the national economy and people's livelihood. my country has 2 billion mu of arable land and needs 150 million tons of fertilizers annually. It is the world's largest importer of fertilizers and producer of nitrogen fertilizers. Even so, the amount of chemical fertilizers still cannot meet the needs of agricultural development. The reason is that the key problem is that the utilization rate of chemical fertilizers is too low. According to the calculations of the research department, the average utilization rate of nitrogen fertilizer...

Claims

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