Composite microbial agent with effects of reducing continuous cropping and wilt of crops and preparation method of composite microbial agent

Abstract

The invention belongs to the field of biological bacterial fertilizers, in particular to a composite microbial agent. The composite microbial agent is prepared from five types of beneficial soil bacteria, wherein bacillus subtilis (TMQK07), bacillus laterosporus (TMQC01) and lactobacillus casei (TMQR02) are mixed according to a living bacteria count proportion of (0.9 to 1) to (0.8 to 0.9) to (5 to 6), and a live bacteria count is larger than or equal to 3,000,000,000 / ml; and moreover, streptomyces griseus (TMQMH05) fermentation liquor containing 700 U / ml or above of streptomycin, and trichoderma harzianum (TMQMH12) fermentation liquor with a spore count of 500,000,000 / ml are mixed with a mixture of the bacillus subtilis, the bacillus laterosporus and the lactobacillus casei, and polysaccharides, gamma-polyglutamic acid and humic acid are added as synergists in order to overcome the continuous cropping of crops, lower the incidence rate of wilt, and achieve the effects of resisting bacteria, tonifying plants, preventing diseases and improving yield.

Description

technical field [0001] The invention belongs to the technical field of agricultural microbial inoculum, and in particular relates to a compound microbial inoculum capable of reducing repeated cropping and blight of crops and a preparation method thereof. Background technique [0002] With the increasing desertification and land pollution in the world, there is less and less land suitable for planting crops. Under the huge population pressure in our country, the contradiction between people and land is getting bigger and bigger. Increasing the multiple cropping index (repeated cropping) is the solution to the problem the only way. However, several years of heavy cropping have caused a large number of soil-borne diseases, resulting in a large area of ​​crop production reduction and extinction. In particular, some medicinal materials with a high effect of heavy cropping, such as life in Changbai Mountain, Panax notoginseng in Southwest China, etc. have no land to grow. Banana ...

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Problems solved by technology

[0003] The reason is that the crops themselves have not been effectively decomposed due to the accumulation of some secretions left over from perennial planting, which inhibits the growth and high yield of the crops themselves. A large number of microorganisms die, and some soil-borne diseases continue to increase. Because of their strong concealment and high degree of damage, it is difficult to prevent soil-borne diseases, which have become the main diseases of heavy cropping diseases. Soil-borne pathogenic bacteria have produced extremely strong drug resistance. To fundamentally eliminate the effect of repeated cropping, it is necessary to start from the soil micro-ecology, and at the same time supplement the beneficial bacteria in the soil and combine with antibacterial factors to achieve the effect of stubble resistance and drought resistance.

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