Crop straw decomposition agent and application method thereof

Abstract

The invention discloses a crop straw decomposition agent. The crop straw decomposition agent is composed of the following components by mass percent: 20%-30% of bacillus subtilis, 20%-30% of aspergillus niger, 10%-15% of candida utilis, 15%-20% of trichoderma viride, 10%-15% of aspergillus oryzae and 1%-2% of cellulase. In order to solve the problems such that current straws are directly returned to fields, and the temperature rise is slow, the decomposition is slow and the decomposition effect is poor when the straws are used for composting an organic fertilizer, crop straw decomposition is tested for a plurality of years, microorganism strains and biological enzyme preparations are continuously screened, and finally, the bacillus subtilis, the aspergillus niger, the candida utilis, the trichoderma viride, the aspergillus oryzae and the cellulase are prepared into the crop straw decomposition agent according to the scheme. The four fungi are not antagonistic and combined with the cellulase to have a synergistic interaction effect and the straws can be rapidly decomposed.

Description

Technical field: [0001] The invention belongs to the technical field of crop straw treatment, and in particular relates to a microbial decomposing agent for rapidly decomposing crop straws and a method for using the microbial decomposing agent. Background technique: [0002] Crop straw is one of the most abundant substances in the world. The output of crop straw in the world is about 2.941 billion tons, and the output of crop straw in my country is about 700 million tons per year, of which straw feed, straw energy, straw papermaking and building materials account for Two-thirds and one-third are discarded or incinerated. Crop straw is an important resource in the crop production system. It contains a variety of effective components that can be used. In addition to the vast majority of carbon, it also contains elements such as nitrogen, phosphorus, potassium, silicon, and calcium, as well as cellulose and semi-fibers. , lignin, protein, amino acid and other active ingredients...

AI Technical Summary

Problems solved by technology

In recent years, due to the application of a large amount of chemical fertilizers and less use of organic fertilizers in farmland, soil compaction, low soil organic matter, soil pollution, and soil loss of vitality have caused the soil to be in a sub-healthy state.

The method of directly returning straw to the field can increase soil organic matter and improve soil physical and chemical properties, but the straw decomposes slowly, and its active ingredients are rarely used by crops in the current season, which is not conducive to farmland operations. Therefore, a crop straw decomposing agent is explored and launched to make crops Straw decomposes quickly, improving the operability of straw returning to the field or making straw compost into organic fertilizer and applying it to farmland is of great practical significance to promote the sustainable development of agriculture.

Most of the existing biological straw decomposing agents have the defects that after the decomposing agent is added to the straw, the microorganisms cannot be quickly revived, colonized, and the enzyme activity of the microorganisms is low, so it is not easy to quickly decompose the straw, which needs to be improved

Images