The invention relates to the field of microorganisms, in particular to multifunctional
streptomyces fradiae and application of the multifunctional
streptomyces fradiae as a
solid microbial agent. The collection number of the
streptomyces fradiae G-1 is CCTCC M 2020250. While preventing and treating soil-borne diseases, the strain can generate active substances such as IAA,
cellulase and
protease to promote
plant growth and soil
nutrient utilization, and can degrade
phenolic acid plant autotoxic substances to relieve obstacles to
continuous cropping of soil. The preparation of the
microbial agent adopts a preferable formula and is supplemented with a
fermentation process conforming to the growth of strains to obtain the high-activity multifunctional
microbial agent. The microbial agent can be combined with
straw manuring to promote
straw decomposition and can be combined with a commercially available
organic fertilizer or
farmyard manure to serve as base
fertilizer. After application, the ecological balance of the soil is regulated by means of
nutrient competition,
metabolite regulation and control and the like, the
fertility of the soil is enhanced, and the occurrence of soil-borne diseases is reduced. The microbial agent is simple in preparation method, readily available in raw materials, low in production cost, long in
shelf life and obvious in
disease prevention and yield increase effects.