A kind of microbial straw decomposing agent and preparation method thereof

Abstract

The invention provides a microbial straw decomposing agent. The invention selects strains that can act synergistically but do not produce antagonism: cellulase preparations, white rot fungi, Bacillus subtilis, thermophilic spores, Bacillus pumilus, As a production strain, Saccharomyces cerevisiae has a strong decomposing effect on the main components of straw, and at the same time has a biological control function, which can inhibit the growth of pathogenic bacteria such as crop sheath blight, rice blast, wheat root rot, and strawberry gray mold. The production cycle of the product of the invention is relatively short, the production efficiency is high, the cost is low, and the use is safe and convenient.

Description

technical field [0001] The invention relates to a microbial straw decomposing agent and a preparation method thereof, belonging to the technical field of agricultural microorganism application. Background technique [0002] my country is a large agricultural country, and the sown area of ​​crops ranks first in the world. The straw contains huge nutrient resources. About 50% of the nutrients absorbed by the crops are retained in the straw in the form of biomass. Therefore, the crop straw is the most abundant in the world. one of the substances. At present, there are nearly 3 billion tons of crop straw in the world. The annual output of crop straw in my country is about 1 billion tons, accounting for about 1 / 3 of the world's total straw resources. It is the world's largest straw country, and the total output is still growing. 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 being m...

AI Technical Summary

Problems solved by technology

[0004] 1. The official return rate of crop straws is not high, and more are burned. Straw burning not only wastes resources, pollutes the environment, but also produces a lot of thick smoke that affects the environment and traffic safety;

[0005] 2. After the crop straw is returned to the field, although it can use its own and environmental microorganisms to complete its own decomposing process, since the crop straw is mainly composed of cellulose, hemicellulose and lignin, it is difficult to be decomposed by microorganisms in the natural environment, so Straw decomposes and transforms in the soil for a long period of time and cannot be fully utilized. At the same time, it will also affect the physical properties of the soil and field cultivation.

[0008] (1) There are many types of bacterial strains, and the effect of synergistic degradation of straw by enzyme bacteria is not ideal;

[0009] (2) The ability of bacteria to determine the value in the system composed of straw and soil is not strong;

[0010] (3) The fermentation temperature is relatively high, and the decomposing time is also long;

[0011] (4) The production process conditions are complicated and the production cost is high, which is not conducive to popularization and use

Images