Method for preparing fertilizer by degrading sludge through microorganisms and product

The invention discloses a method for preparing a fertilizer by degrading sludge through microorganisms and a product, and belongs to the field of microbial engineering. The method comprises the following steps: preparation of a compound zymophyte system: mixing fermentation broth of rhodopseudomonas palustris, fermentation broth of cryptococcus sp., fermentation broth of bacillus subtilis and fermentation broth of nitrosomonas sp., and mixing the fermentation broth of the rhodopseudomonas palustris, the fermentation broth of the cryptococcus palustris, the fermentation broth of the bacillus subtilis and the fermentation broth of the nitrosomonas palustris, the fermentation broth of the nitrosomonas palustris and the fermentation broth of the nitrosomonas palustris and the fermentation broth of the nitrosomonas palustris and the fermentation broth of the nitrosomonas palustris and the fermentation broth of the nitrosomonas palustris; preparation of a fermentation mixture: uniformly mixing the straw and the slu