Microbial fertilizer for preventing and treating corn stalk rot and preparation method thereof

By combining composite biochar and temperature-responsive polymers with microbial agents to form temperature-responsive microspheres, the problem of viable bacteria count decay during transportation and storage of microbial agents is solved, thereby improving the control effect of corn stalk rot and soil improvement capacity, promoting corn growth, and achieving environmentally friendly disease control.

CN122145215APending Publication Date: 2026-06-05LULIANG UNIV
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
LULIANG UNIV
Filing Date
2026-01-29
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

Existing technologies for controlling corn stalk rot suffer from significant reduction in the number of viable bacteria in microbial agents during transportation and storage, resulting in poor colonization effects. Traditional control methods also present environmental pollution and drug resistance problems, making it difficult to effectively control the disease.

Method used

The technology employs an encapsulation and solidification technique that combines composite biochar and temperature-responsive polymers with microbial agents. Temperature-responsive microspheres are formed through intercalation and cross-linking reactions, achieving uniform dispersion and firm binding of the microorganisms. Combined with the soil-amortizing effect of composite biochar, this enhances colonization efficiency and provides a slow-release effect.

Benefits of technology

It improves the colonization efficiency of microbial agents in the rhizosphere of maize, reduces the decay of live bacteria, enhances disease prevention, promotes maize growth, improves the soil environment, and achieves green and sustainable development.

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Abstract

The application discloses a kind of microbial fertilizer for preventing and treating corn stem rot and a preparation method thereof, belong to the technical field of microbial fertilizer, first corn straw pyrolysis and hydrochloric acid modification, using sodium hydroxide and sodium-based montmorillonite intercalation, obtain composite biochar, cultivate bacillus subtilis, bacillus amyloliquefaciens and bacillus velezensis microbial inoculant again, and synthesis temperature response type polymer, finally composite biochar, temperature response type polymer and microbial inoculant are dispersed in sodium alginate solution, form temperature response type microsphere, after mixing with humic acid, calcium sulfate, zinc sulfate, ferrous sulfate and potassium sulfate, obtain the microbial fertilizer for preventing and treating corn stem rot;Efficient loading, active protection and temperature response release of microorganism are realized, and the prevention and treatment effect of corn stem rot is improved.
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