Bio-control composite bacterial agent and preparation process thereof

Abstract

The invention discloses a bio-control composite bacterial agent which comprises, by weight, bacterial strains including 8-12 parts of purpureocillium lilacinum, 18-22 parts of pseudomonas fluorescens, 18-22 parts of bacillus cereus, 8-12 parts of bacillus mucilaginosus, 18-22 parts of bacillus subtilis, 8-12 parts of bacillus megaterium, 4-6 parts of bacillus thuringiensis and 4-6 parts of trichoderma viride and a culture medium comprising 0.8-1.2 parts of beef extract, 2.5-4 parts of potassium dihydrogen phosphate, 1.3-1.8 parts of urea, 10-12 parts of molasses, 1.5-2.5 parts of amino acid, 2.5-3.5 parts of glucose, 0.3-0.6 part of peptone, 0.25-0.4 part of sodium chloride and 0.35-0.6 part of potassium nitrate. The invention further comprises a preparation method of the bacterial agent. The bio-control composite bacterial agent has good effect on solving current problems of soil improvement, environment protection of agriculture and waste straw rubbish and can improve soil and accelerate crop growth and organic matter decomposition.

Description

technical field [0001] The invention relates to the technical field of soil improver, in particular to a biocontrol composite bacterial agent, and also relates to a preparation process of the biocontrol composite bacterial agent. Background technique [0002] As a large agricultural country, crop straw resources are abundant, the quantity is huge, and the variety is diverse. The annual output of crop straw reaches hundreds of millions of tons. Traditional straw is mainly used for gaskets, feeding livestock, and composting manure. In recent years, with the sharp reduction of livestock breeding, a large part of straw has been dumped into the environment in the form of accumulation and incineration, causing serious pollution to the environment. At the same time, it also caused a great waste of resources. [0003] The efficient resource utilization of straw can not only reduce pollution and protect the environment, but also turn waste into treasure and promote sustainable econo...

AI Technical Summary

Problems solved by technology

However, at present, most of the decomposing bacteria agents for crop straw returning to the field have problems such as single microbial metabolism type and function, poor pertinence and improper compounding ratio, and cannot achieve fast and efficient straw decomposition effects, so it is difficult to promote and apply them on a large scale

In addition, bacteria, diseases and insect pests are easy to breed in the soil where straw is returned to the field, which will cause great harm to the normal growth of crops. How to develop a high-efficiency straw returning compound bacterial agent can effectively treat crop straw and accelerate straw decomposition. It can achieve the purpose of preventing and controlling pests and diseases, and becomes an urgent problem to be solved