Method for preparing high-activity bio-organic fertilizer from caragana microphylla and organic fertilizer

By using acid-enzyme synergistic pretreatment and compound microbial agent fermentation process, the problem of the difficulty in efficiently converting the residue of Caragana korshinskii branches into highly active bio-organic fertilizer has been solved, realizing efficient Caragana korshinskii conversion and fertilizer functionalization, and improving the degree of decomposition and activity.

CN121293027AInactive Publication Date: 2026-01-09LANZHOU UNIV
3 Cites 0 Cited by

Patent Information

Application Number
CN202511871755.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-12
Publication Date
2026-01-09
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

Existing technologies struggle to effectively utilize the residues of Caragana korshinskii branches to prepare highly active bio-organic fertilizers. They face challenges such as insufficient targeting of pretreatment methods, inadequate synergy in fermentation processes, and imperfect design of functional microbial agents, resulting in low conversion efficiency and low degree of decomposition.

Method used

A two-stage coupled fermentation process was adopted, which combined acid-enzyme synergistic pretreatment with customized compound microbial agents. Laccase was used to break down the structure of Caragana korshinskii and degrade inhibitors under high temperature and dilute acid conditions. Compound functional microbial agents and Aspergillus fumigatus were fixed in sodium alginate-gelatin-biochar gel for high temperature aerobic and mesophilic anaerobic fermentation. The fermentation process was optimized and functional additives were added.

Benefits of technology

It significantly improves the bioavailability and conversion efficiency of Caragana korshinskii, shortens the fermentation cycle, enhances the activity and functionality of the fertilizer, and ensures the stability of the fermentation process and product quality.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

The invention discloses a method for preparing a high-activity bio-organic fertilizer from caragana microphylla and the organic fertilizer, and belongs to the technical field of agricultural waste recycling and bio-fertilizers. Aiming at the technical problems that caragana microphylla branch residues are high in lignification degree, contain many inhibitors and are difficult to efficiently decompose and convert into a high-activity fertilizer, the method provided by the invention comprises the following steps: crushing and drying caragana microphylla branches, pulverizing, mixing with dilute sulphuric acid and laccase, soaking at a high temperature, and neutralizing to obtain activated slurry; compounding a composite functional bacterial agent in a specific proportion; mixing the slurry, a microbial agent and a nitrogen source, and sequentially performing high-temperature aerobic fermentation and medium-temperature anaerobic fermentation with molasses and sodium selenite to obtain a fermented material; and finally mixing with a functional additive to prepare the fertilizer. The prepared fertilizer is rich in organic matters, humic acid, high-activity functional bacteria and stable organic selenium, and is suitable for improving soil, promoting crop growth and improving the quality of agricultural products.
Need to check novelty before this filing date? Find Prior Art