The invention relates to the technical field of resourceful treatment of
livestock and poultry excrement wastes, in particular to a method for bio-converting cow breeding excrement
slurry waste liquidand compounding a synergistic
fertilizer by combining earthworms with
edible fungus dregs. The method comprises the following steps: carrying out
solid-liquid separation on cow excrements and separately fermenting the cow excrements; composting an
earthworm breeding
bed by using
fungus dregs and the fermented and decomposed cow excrements obtained after
solid-liquid separation; irrigating the breeding
bed with the fermented excrement
slurry waste liquid, and inoculating
earthworm cocoons mixed with
earthworm excrement on the earthworm
bed; when the earthworm cocoons are hatched and
juvenile earthworms start to grow and eat a treated substrate, irrigating with the excrement
slurry waste liquid timely; and timely collecting high-quality earthworm excrement in batches from the upper surfacelayer, and compounding the collected high-quality earthworm excrement with biological carbon to obtain the synergistic
fertilizer. According to the method, liquid slurry excrement
pollution and the
edible fungus stick waste
pollution generated in the cow breeding industry can be bio-converted, water used in the earthworm breeding link is saved, the excrement waste liquid of the cow breeding industry is functionalized and converted into resources, and the produced flowering-promoting peony substrate synergistic
fertilizer can obviously improve the comprehensive quality of flowering-promoting peonies.