Preparation method of liquid fertilizer containing microorganisms

Abstract

The invention relates to a preparation method of a liquid fertilizer containing microorganisms. The preparation method comprises: adding plant residues, an acid-alkali adjusting agent, distilled water, a culture medium and microorganisms into a fermentation tank, fermenting at a certain temperature, carrying out pH value adjustment and cooling on the product after fermenting for a certain time, storing for 3-5 days in the fermentation tank, adding slaked lime, adjusting the pH value, continuously adding the culture medium and the beneficial microorganism to the fermentation tank, fermenting at a certain temperature, carrying out pH value adjustment and cooling on the product after the fermenting, storing for 3-5 days in the fermentation tank, repeating the steps one time, carrying out press filtration on the product to obtain filtrate, and adding the filtrate to a liquid fertilizer to obtain the liquid fertilizer containing the microorganisms. According to the present invention, the natural ecological environment of the soil is simulated, and the three fermentations are performed, such that the fermented microbial agent can quickly adapt to the environment after being put into the soil so as to ensure the survival rate.

Description

technical field [0001] The invention relates to a preparation method of liquid fertilizer containing microorganisms. 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 surviving be...

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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

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