Method for preparing phosphate-solubilizing bacterium culture medium and phosphate-solubilizing bacterial manure

The invention discloses a method for preparing a phosphate-solubilizing bacterium culture medium and phosphate-solubilizing bacterial manure by mixing beer wastewater sludge with bran, wherein the culture medium comprises the following components in parts by weight: 72-77 parts of the beer wastewater sludge and 23-28 parts of the bran. The method comprises the following steps: inoculating the culture medium with phosphate-solubilizing bacteria; carrying out solid-state culture in a microbial solid-state incubator at 28-32 DEG C, and ventilating and turning over materials every 9h. The method disclosed by the invention overcomes the shortcomings in the existing production culture medium for a phosphorus bacteria microbial fertilizer, raw materials of the culture medium are easily available, the composition of the culture medium is simple, the technological conditions in the production process are mild, and easy to control, equipment requirements are easy and feasible, the investment is small, the cost is low,