What is the significance of promoting the combination of planting and raising?

In recent years, in the development of planting, due to the use of large quantities of fertilizers, on the one hand, the phenomenon of super-concentration into the soil is becoming more and more serious; on the other hand, excessive ammonia and nitrogen with the rain into the rivers, lakes, reservoirs, resulting in eutrophication of the water body, seriously polluting the water supply. In livestock and poultry farming, with the development of large-scale, intensive, concentrated discharge of livestock and poultry manure on the pollution of water sources more and more by the community's concern. Data show that agricultural surface pollution has accounted for 2/3 of the total pollution sources. therefore, in order to promote the sustainable and healthy development of China's agriculture, it is urgent to solve the agricultural surface pollution. The combination of planting and farming is a kind of environmentally friendly, green and ecological circular agriculture based on the rational utilization of resources and the organic combination of planting and farming. The model through the intermediate product of bio-fertilizer, on the one hand, for the planting industry to provide fertilizer raw materials, to solve the chemical fertilizer brought about by agricultural pollution; on the other hand, for the livestock and poultry manure to provide a way to dissipate, to solve the environmental problems of the farming industry; third, to improve the quality of the soil, to solve the phenomenon of soil sloughing.