Compound microbial preparation for resisting continuous cropping obstacles of crops and preparation method thereof

The invention belongs to the technical field of microbial agents, and particularly relates to a compound microbial preparation for resisting continuous cropping obstacles of crops and a preparation method thereof. The preparation method is simple in process and low in cost, and various raw materials are wide in source and easy to obtain. The compound microbial preparation for resisting the continuous cropping obstacles of the crops provided by the invention is pollution-free and does not increase the burden of soil; a protective barrier is formed in a rhizospheric environment of the crops; beneficial flora is rapidly propagated into dominant flora after being applied into the soil; jerusalem artichoke straw is added, so that the richness and diversity of soil fungi and bacteria can be improved; sudden mineral elements are supplemented through rock flour; and through the synergistic effect of all the components, inhibition of secreta in the growth period of previous crops on continuouscropping crops is effecti