Water-soluble compound microbial fertilizer and preparation method thereof

Abstract

The invention belongs to the technical field of microbial fertilizers, and particularly relates to a water-soluble compound microbial fertilizer and a preparation method thereof. The water-soluble compound microbial fertilizer provided by the invention comprises yeast fermentation waste liquid dry powder, inorganic water-soluble fertilizer and functional bacteria powder in a mass ratio of (68-85):(15-30): (0.3-3.5). According to the water-soluble compound microbial fertilizer provided by the invention, the water-soluble yeast fermentation waste liquid dry powder is used as an organic carrier,so that the defect that the traditional compound microbial fertilizer is not water-soluble is overcome, the application mode of the compound microbial organic fertilizer is expanded, meanwhile, the damage of the traditional organic fertilizer to crops is avoided, and by compounding the water-soluble yeast fermentation waste liquid dry powder with the functional bacterium powder and the inorganicwater-soluble fertilizer according to a certain proportion, the soil fertility can be effectively improved. Experimental results of the embodiment show that the content of the water-insoluble substances in the water-soluble compound microbial fertilizer provided by the invention is 0.08%-0.25%, and the requirement that the content of the water-insoluble substances in a general water-soluble fertilizer standard is less than or equal to 5% is met.

Description

technical field [0001] The invention belongs to the technical field of microbial fertilizers, and in particular relates to a water-soluble composite microbial fertilizer and a preparation method thereof. Background technique [0002] Compound microbial fertilizer is a kind of "ternary compound fertilizer" composed of organic fertilizer, inorganic fertilizer and functional bacteria, which embodies the comprehensive effect of "three effects in one", which can activate soil, improve soil fertility, inhibit disease and strengthen soil Microbial function, increase production and income, etc. [0003] At present, commonly used organic raw materials include straw, poultry manure, cake fertilizer, algae fertilizer, mushroom residue, industrial by-products, etc. However, the above-mentioned organic raw materials are often not completely decomposed, and after use, there will be burnt seedlings and dead seedlings, and the harmful bacteria carried by the organic raw materials will caus...

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Problems solved by technology

However, the above-mentioned organic raw materials are often not completely decomposed, and after use, there will be burnt seedlings and dead seedlings, and the harmful bacteria carried by the organic raw materials will cause secondary pollution to the soil, and the activity of effective functional bacteria adsorbed will also be inhibited, which will affect crops. Yield and quality; In addition, the compound microbial fertilizers produced from such organic raw materials are generally used as base fertilizers and are rarely used as topdressing fertilizers. In the middle and late stages when crops grow faster and absorb more nutrients, they cannot take advantage of the "ternary compound fertilizer"

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