The separation and purification were carried out on aerobic cellulose decomposition strains group in natural cow compost,and 2 mildew were screened,combined with the original compound microorganism strains of laboratory(The silicate bacterium,azotobacter,organic phosphorus bacterium,microzyme),the 4 combinations were designed,and the experiment of cow dung compost was carried out,meanwhile tracking determined the temperature,thick fibre and cellulose enzymatic activity in the process of compost.The results ...