The fermentation fertilizer manufacturing process of organic compost can be simply divided into the following four stages:
(1) Fever stage In the early stage of composting, the microorganisms in the compost are mainly of moderate temperature and aerobic types. The more common ones are non-spore-forming bacteria, spore-forming bacteria and mold. They start the fermentation process of composting. Under aerobic conditions, they vigorously decompose and easily decompose organic substances (such as simple sugars, starches, proteins, etc.) to generate a lot of heat. For the fever stage, or the middle temperature stage.
(2) High temperature stage As the temperature increases, the heat-bearing microorganisms gradually replace the mesophilic species and play a leading role. The temperature continues to rise, generally reaching more than 50 ° C within a few days, and enters the high temperature stage. In the high temperature stage, thermophilic actinomycetes and thermophilic fungi become the main species. They strongly decompose complex organic substances (such as cellulose, hemicellulose, pectin substances, etc.) in the compost, heat accumulation, the temperature of the compost rises to 60-70 ° C, and even up to 80 ° C. Then most of the good heat Microorganisms also die in large numbers or enter a dormant state (more
