Complex microbial inoculant suitable for straw organic fertilizer fermentation and method for improving and fertilizing soil by using complex microbial inoculant

Through the synergistic effect of composite bacterial agents and porous carriers, rapid straw decomposition and soil improvement are achieved, which solves the environmental pollution and soil quality problems in traditional straw treatment methods and improves fermentation efficiency and soil fertility.

CN120829894APending Publication Date: 2025-10-24INST OF CROP SCI NINGXIA ACADEMY OF AGRI & FORESTRY SCI
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Patent Information

Application Number
CN202510940061.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-07-08
Publication Date
2025-10-24

AI Technical Summary

Technical Problem

Traditional straw processing methods lead to air pollution, fire hazards, soil pore blockage, pest and disease breeding, and low nutrient release efficiency. Traditional fermentation cycles are long, temperature control is unstable, and organic matter loss is large.

Method used

A composite bacterial agent composed of lignin-degrading bacteria, cellulose-degrading bacteria and functional auxiliary bacteria is used, combined with a porous carrier, to achieve rapid straw composting and soil improvement through three-stage temperature control. The combination of the carrier's physical structure and functional strains is utilized to achieve efficient fermentation of straw organic fertilizer and soil fertilization.

Benefits of technology

It improves the efficiency of straw fermentation, enhances the fertilizer efficiency of fermented fertilizer, improves soil structure and nutrient supply, improves soil health, and solves the environmental pollution and soil quality problems in traditional straw treatment methods.

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Abstract

The invention relates to the technical field of soil improvement, in particular to a complex microbial inoculant suitable for straw organic fertilizer fermentation and a method for improving and fertilizing soil through the complex microbial inoculant. The complex microbial inoculant is formed by compounding a functional microbial inoculant and a carrier according to the mass ratio of 1: (3-5); the functional microbial agent is prepared by mixing lignin degrading bacteria, cellulose decomposing bacteria and functional auxiliary bacteria; all the components of the complex microbial inoculant have a synergistic effect, the fermentation function of the complex microbial inoculant can be greatly improved, the lignin degrading bacteria specifically break ether bonds (-O-) and carbon-carbon bonds (C-C) in a lignin three-dimensional network structure by secreting laccase, manganese peroxidase and the like, lignin is degraded into low-molecular aromatic compounds, and the low-molecular aromatic compounds can be used for degrading the lignin into low-molecular aromatic compounds. Physical wrapping on cellulose is removed, so that a straw fiber structure is converted into a loose structure which is easy to decompose from a lignin-cellulose complex.
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