Microbial compound fertilizer for improving saline-alkali soil and increasing crop yield

Abstract

The application discloses a kind of improved saline-alkali soil and increase yield of microorganism compound microbial fertilizer, the preparation method of the microorganism compound microbial fertilizer includes the following steps: preparation includes phosphorus-solubilizing bacteria, potassium-solubilizing bacteria, nitrogen-fixing bacteria, bacillus subtilis and actinomycete microbial inoculant;Formulation sodium alginate solution, add nano hydroxyapatite and microbial inoculant, drop into calcium chloride solution after being mixed uniformly, inner layer embedding, obtain microorganism embedding granule;Mixing even biological charcoal, humic acid and attapulgite, 2-3%HPMC solution is used as binder, middle layer coating, obtain precast microorganism microbial fertilizer granule;Cystose callose-sodium alginate-nano ZnO outer coating, microorganism compound microbial fertilizer is obtained.The microorganism compound microbial fertilizer of the application adopts multi-level, multi-functional collaborative design concept, realizes the efficient protection and slow release of functional microorganism under saline-alkali environment, significantly improves soil physical and chemical properties, and promotes crop growth.

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