Compound microbial organic fertilizer for saline-alkali soil improvement and application thereof
The compound microbial organic fertilizer, which combines Bacillus amyloliquefaciens BA-26 with Acetobacter pasteurellium, solves the problems of low microbial survival rate and poor improvement effect in saline-alkali land improvement. It achieves long-term improvement of saline-alkali soil and promotes plant growth, and has significant effects on improving soil enzyme activity and soil structure.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-25
- Publication Date
- 2026-07-24
AI Technical Summary
In existing compound microbial organic fertilizers, the functional microorganisms used for saline-alkali land improvement have not been adapted to saline-alkali conditions, resulting in low survival rates, poor activity, and limited improvement effects. Furthermore, the raw materials for organic fertilizers lack functional components such as medicinal herb residues, leading to short-lived improvement effects and high costs, which limits large-scale promotion.
A combination of Bacillus amyloliquefaciens BA-26 and Acetobacter pasteurianus was used. After being cultured under specific pH and salinity gradients, the mixture was adsorbed onto biochar and then mixed with high-quality organic fertilizer to form a compound microbial organic fertilizer. The salt and alkali tolerance of Bacillus amyloliquefaciens and the acid production capacity of Acetobacter pasteurianus were used to synergistically improve saline-alkali soil.
It significantly improves soil enzyme activity, reduces soil pH and Na+ toxicity, promotes plant growth, improves soil structure, enhances soil water and fertilizer retention capacity, achieves long-term improvement of saline-alkali land, and promotes sustainable agricultural development.