The invention discloses a compound microbial
fertilizer for preventing and treating take-all
disease of wheat and a preparation method of the compound microbial
fertilizer. The compound microbial
fertilizer consists of the following raw materials:
streptomyces catenulae,
streptomyces albolongus,
bacillus flexus,
bacillus aryabhattai and
trichoderma brevicompactum. The strains of the invention, on the basis of the comprehensive utilization of microbial inter-species or intra-species
antibiosis, competition, hyperparasitism and bacteriolysis effects or by inducing the wheat to generate
disease resistance by virtue of secondary metabolites, can generate various
antibiotics, such as proceomycin,
neomycin E, catenulin, diparomomycin and the like, so as to inhibit
pathogenic bacteria of the take-all
disease of wheat; the five strains adopted by the invention are directly separated from soil and have a
rhizosphere growth promoting effect; the strains can promote
reproduction and growth on
crop surfaces or in plants or soil, and meanwhile, the strains can take an effect on
nitrogen fixation and can promote the directional
secretion of some secondary metabolites from
plant rhizosphere; and the strains can enhance
nutrition absorption of plants and stimulate
plant growth, so that the effects of the fertilizer are achieved.