Method for composting cow dung and fruit and vegetable straws

The invention discloses a method for composting cow dung and fruit and vegetable straws. The method specifically comprises the following steps of S1, composting early stage preparation; S2, carbon-nitrogen ratio adjustment, wherein the cow dung, the fruit and vegetable straws and high carbon auxiliary materials are mixed according to weight ratio of 2:1:1, and the carbon to nitrogen ratio is controlled to be 20:1 to 30:1; S3, water content adjustment, wherein the initial water content of a waste pile is adjusted to be about 50%-70%; S4, microbial inoculation, wherein microbial bacteria is added, the dosage is 0.1%-0.4% of the mass of the pile, a straw decomposing agent is added, and the dosage of the decomposing agent is 5 kg per ton of the straws; S5, piling, wherein materials are mixed and piled into 3-4 layers, each layer has a thickness of 30-40cm, each layer of the materials is evenly sprinkled with the straw decomposing agent, and the ratio of the lower layer to the upper layer is 4:4:2 and 3:3:3:1; S6,