Bacillus safensis X3 and application thereof

Abstract

The invention provides bacillus safensis X3 and application thereof, belonging to the technical field of new use of microorganisms. The bacillus safensis X3 has an ability to degrade phosphorus, and the concentration of the degraded phosphorus reaches 476.6mg / L or above; the difficult-to-use phosphorus is converted into available phosphorus, so that the content of the available phosphorus in the soil is effectively increased, the utilization rate of fertilizer is improved, and the growth and development and fertilizer absorption of plants are promoted; furthermore, the concentration of indoleacetic acid produced by the bacillus safensis X3 is 34.78mu g / mL or above. The bacillus safensis X3 is applied to plant cultivation, and can significantly improve the yield and quality of grain crops such as wheat and corn, oil crops such as peanut, and cash crop such as tobacco.

Description

technical field [0001] The invention belongs to the technical field of new uses of microorganisms, and in particular relates to a Bacillus suffolus strain X3 and its application. Background technique [0002] Sandy fluvo-aquic soil has strong permeability, good shaking culture, and aerobic microbial activities are dominant, which can promote the decomposition of organic matter and accelerate the mineralization of organic matter. And the soil is loose and easy to cultivate. The capillary action of the soil is strong, the water runs fast, and there is a phenomenon of "night tide". The suitable tillage period is also long, and the seedlings are easy to stand; but the nutrient content is low, the fertilizer retention performance is poor, and the crops are prone to defertilization and premature aging in the later stage. At present, most of the soil has been used as arable land, and its utilization rate reaches 92.3%. Targeted improvement measures in the future: plant according...

AI Technical Summary

Problems solved by technology

Although the artificial synthesis of indole acetic acid has expanded its source, the spraying method and content need to be strictly controlled, and the application is cumbersome, which limits the application range of indole acetic acid

Although rhizobacteria that symbiotically interact with plants can solve this problem, there are no reports on rhizobacteria that have both phosphorus-solubilizing function and phytohormone production.

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