Abstract: In order to utilize moldy corn silage as a resource and relieve its pressure on the breeding environment,the cow dung and moldy corn silage was mixed with fermenting strains, and then compost fermentationwas carried out and its fermentation effect was explored by stacked composting method. The experimental results showed that compared with the control group, the experimental group could extend the duration of the high temperature period of the pile; The final pH of the compost was between 8.0 and 9.0, and the pH had a certain relationship with the nature of the material and the ratio of different components; The contents of total nitrogen and ammonium nitrogen showed a decreasing trend, while the contents of total nutrients, P₂O₅ and K₂O all showed increasing trends to varying degrees; At the end of composting, all treatment groups failed to reach the standard of non-toxicity to cabbage seeds, it may be related to the pH of the material and the mycotoxins contained in moldy corn silage.

Key words: cow dung, moldy corn silage, mixed compost