Organic fertilizer is mainly used to provide nutrients for plant growth. Livestock and poultry manure is processed to eliminate toxic and harmful substances in manure and retain a large number of beneficial substances, including a variety of organic matter and trace elements such as nitrogen, phosphorus and potassium. Livestock manure organic fertilizer not only has long fertilizer effect and can provide comprehensive nutrition for crops, but also can improve soil quality, effectively improve soil physical and chemical properties and biological activity, and prevent soil hardening and acidification.

The feed utilization of livestock manure is mainly the feed of chicken manure, and the feed of chicken manure has been commercialized abroad. In traditional agriculture, livestock manure is widely used as fertilizer in agricultural production, but livestock manure is not suitable for direct use as fertilizer. It needs further processing before returning to the field, so as not to cause harm to the environment and crops. The common methods of fertilizer utilization are composting, compounding and drying.

Technical development plan of organic fertilizer production line: ① research and develop the processing technology of livestock and poultry manure organic fertilizer, and develop a set of livestock and poultry manure fermentation device; ② The trial production of livestock manure organic fertilizer was carried out by using the developed livestock manure fermentation technology and device, and the quality of the produced organic fertilizer was better than the relevant national standards; ③ Discuss the complete harmless treatment of livestock and poultry manure and the processing technology and process of livestock and poultry manure organic fertilizer production line, formulate appropriate technical specifications, cooperate with breeding enterprises, and plan to build a livestock and poultry manure organic fertilizer production line, with an annual production of 3000 ~ 5000 tons of livestock and poultry manure organic fertilizer; ④ The successfully developed livestock manure fermentation technology and device were popularized.