The invention provides a streptomycesvinaceus-drappus microbial inoculum. The streptomycesvinaceus-drappus microbial inoculum uses an active
bacteria culture prepared by liquid
submerged fermentation or
solid fermentation of an active strain of streptomycesvinaceus-drappus, of which the storage number is CGMCC No. 2664, as an
active ingredient. A tentative name of the streptomycesvinaceus-drappus microbial inoculum is S506, and the streptomycesvinaceus-drappus microbial inoculum was submitted to the CGMCC for storage on 11st September, 2008. The preparation method comprises the following steps of: A, activation of the strain; B, preparation of liquid seeds of the streptomycesvinaceus-drappus; and C, liquid
submerged fermentation of the streptomycesvinaceus-drappus. The invention also provides a novel process of 'liquid seed preparation and
solid fermentation' which is favorable for the growth of the streptomycesvinaceus-drappus, and the novel process meets the technical requirements on high effective
viable count, high
spore production rate, light
contamination of crossbred
bacteria and short
fermentation period. When the active streptomycesvinaceus-drappus is applied to the roots of vegetables, various root diseases, such as
blight,
root rot and
root knot nematode disease, of vegetables can be effectively prevented and controlled, and the streptomycesvinaceus-drappus microbial inoculum has obvious effects of enforcing growth of root systems and degrading autopoisonous matters of root systems, so that the streptomycesvinaceus-drappus microbial inoculum has a wide application prospect in effectively solving the problem of
continuous cropping obstacles which are commonly happed to vegetables, fruit trees, medicinal materials and the like.