Preparation method of agricultural liquid microbial agent

Abstract

The invention relates to a preparation method of an agricultural liquid microbial agent. Plant residues, an acid-base adjusting agent, distilled water, a culture medium and microorganisms are added into a fermentation tank for fermentation under the certain temperature, fermentation is performed for a certain period of time, products are subjected to pH adjustment and cooling and then stored in the fermentation tank for 3-5 d, hydrated lime is added for pH adjustment, the culture medium and beneficial microorganisms are added into the fermentation tank continuously, fermentation is performed under the certain temperature, the fermented products are subjected to pH adjustment and cooling and then stored in the fermentation tank for 3-5 d, the steps are executed again, and a filtrate obtained after filter pressing is performed is the agricultural liquid microbial agent. The method simulates the natural soil ecological environment, the fermented microbial agent is put into soil through three-time fermentation, the agricultural liquid microbial agent can adapt to the environment rapidly, and the survival rate is ensured.

Description

technical field [0001] The invention relates to a preparation method of a liquid microbial bacterial agent for agriculture. Background technique [0002] The evaluation indicators for agricultural microorganisms mainly include the purity of the microbial agent and the quantity of the microbial agent per unit mass. Therefore, the preparation method of bacterial agents as the prior art is generally: a fermentation process is carried out under the temperature and pH conditions suitable for microorganisms to survive, which is equivalent to greenhouse cultivation. [0003] Due to the serious soil compaction and acidification, the external temperature is erratic, and the soil environment has its own "indigenous" microorganisms, the microbial agents cultivated in the greenhouse are directly put into the soil, because they cannot adapt to the harsh environment and the competition of "indigenous" microorganisms in the soil. Basically all die, even if there is a small amount of survi...

AI Technical Summary

Problems solved by technology

[0003] Due to the serious soil compaction and acidification, the external temperature is erratic, and the soil environment has its own "indigenous" microorganisms, the microbial agents cultivated in the greenhouse are directly put into the soil, because they cannot adapt to the harsh environment and the competition of "indigenous" microorganisms in the soil. Basically all of them died, even if a small number survived because they could not form a population effect, they would not be able to exert the effect of microbial agents