Peanut rhizosphere microbial strain and method for applying biological bacterial fertilizer thereof to soil improvement and remediation

Abstract

The invention provides a flowering plant rhizosphere microbial strain and a method for applying a biological bacterial fertilizer of the flowering plant rhizosphere microbial strain to soil improvement and remediation, and relates to the technical field of soil improvement. The invention comprises a bacterial strain which has an inhibition effect on pathogenic bacteria of peanut fruit rot, a bacterial strain which has the capabilities of dissolving phosphorus, dissolving potassium, fixing nitrogen, adjusting pH and degrading autotoxic substances of peanuts, and a bacterial strain which secretes a plant growth regulator. When the strains are compounded and applied to peanut planting, the obvious growth promoting, disease preventing and yield increasing effects are achieved. Meanwhile, according to the biological bacterial fertilizer prepared from the peanut rhizosphere microbial bacterial system, the microbial bacterial system, organic matter and inorganic compound fertilizer are applied in a matched mode to prevent and treat peanut fruit rot, and the yield can be increased through the synergistic interaction effect of growth-promoting bacteria and the growth-promoting effect of the biological organic fertilizer; and peanut fruit rot can be prevented and controlled through the synergistic effect of the biocontrol strain and the growth-promoting strain, so that the yield is increased.

Description

technical field [0001] The invention belongs to the technical field of soil improvement, and in particular relates to a method for soil improvement and restoration of a peanut rhizosphere microbial strain and the biological bacterial fertilizer prepared therefrom. Background technique [0002] Peanut is one of the main oil crops and economic crops in my country. Peanut fruit rot is a kind of soil-borne disease that generally occurs in the world. It has been reported in North America, Australia, Asia, Africa and other places. In recent years, peanut fruit rot has occurred in major peanut producing areas such as Hebei, Henan, Shandong, and Liaoning, and has a tendency to increase year by year. It has become a major disease in major peanut producing areas in my country. Peanut fruit rot can cause about 30% of peanut pods to rot, which seriously threatens the healthy development of peanut industry. [0003] Heavy cropping (continuous cropping obstacle) can aggravate the occurre...

AI Technical Summary

Problems solved by technology

At present, some excellent strains have been reported in the biological control of peanut fruit rot, but the effect of biocontrol microorganisms in the field control practice is unstable and uneven, resulting in no drug available for the disease in actual production.

This is because the biocontrol strains only consider their inhibitory effect on pathogenic bacteria, but do not consider the soil microenvironment in which they live and the interaction with other microorganisms or plants, resulting in their inability to colonize in the field, even if they are partially determined. After the colonization, the soil environment on which the pathogenic bacteria depended was not changed, nor did it promote the synergistic effect of microorganisms, crops and soil

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