High-efficiency corn stalk degrading bacteria and application thereof

By using a highly efficient corn stalk degradation agent, the problem of slow corn stalk degradation in albic soil areas has been solved, the soil organic matter content and nutrient levels have been increased, and soil fertility has been improved. This method is suitable for returning corn stalks to the field in albic soil areas.

CN122104490APending Publication Date: 2026-05-29HEILONGJIANG ACAD OF AGRI SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HEILONGJIANG ACAD OF AGRI SCI
Filing Date
2026-01-26
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Corn stalks degrade slowly in alkaline soil areas, resulting in low soil organic matter content and insufficient nutrient content, which affects crop yield and soil fertility, and existing technologies are unable to effectively solve this problem.

Method used

A compound microbial agent containing highly efficient corn straw degrading bacteria, including Streptomyces sp. JSTG24, Streptomyces phaeochromogenes MD15, Streptomyces fagopyri MD55, and Pseudomonas migulae MD68, is prepared by mixing and using a microbial solution with a high viable count. This method is suitable for alkaline soil environments and improves the straw degradation rate.

Benefits of technology

It significantly improves the degradation rate of straw, increases soil organic matter content, improves soil fertility, is simple to operate and low in cost, and is suitable for industrial production.

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Abstract

The present application relates to high-efficiency corn stalk degrading bacteria, which are Streptomyces sp. JSTG24, Streptomyces phaeochromogenes MD15, Streptomyces fagopyri MD55, Pseudomonas migulae MD68 and a complex bacterial population. The degrading bacteria or the complex bacterial agent screened in the present application can tolerate low temperature, high temperature, and complex acidic and alkaline environments, and is suitable for the complex environment of stalks returned to the field, significantly improves the stalk degradation rate, and increases the soil organic matter content.
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