Preparation method of ginseng endophytic Paenibacillus polymyxa biological control microbial inoculum

The invention relates to the field of biotechnology and specifically discloses a preparation method of a ginseng endophytic Paenibacillus polymyxa biological control microbial inoculum. The strain used in the invention is ginseng endophytic Paenibacillus polymyxa which has been preserved in the China General Microbiological Culture Collection Center on February, 5th, 2013. The address is No.3, Yard 3, West Beichen Road, Chaoyang District, Beijing, Institute of Microbiology, Chinese Academy of Sciences. The collection number is CGMCC No. 7250. The method provided by the invention comprises: culture of the ginseng endophytic Paenibacillus polymyxa strain, preparation of a seed liquid, preparation of a broth, and preparation of a finished product. The preparation method provided by the invention has advantages of simple production operation of the biological control microbial inoculums, low cost, complete thallus fermentation and high spore formation rate, and lays a solid foundation for large-scale culture, development and utilization of the ginseng endophytic Paenibacillus polymyxa.