Livestock/poultry manure-straw coupled field returning method

The invention provides a livestock/poultry manure-straw coupled field returning method. Cellulase, proteinase, lipase, microzyme, deodorizing bacterium and other fermentative bacteria are added into livestock/poultry manure to shorten the manure fermentation time; the livestock/poultry manure is used as a carrier for production, reproduction and application of the straw decomposing bacterium, so that the quantity of the fermented decomposing bacterium is increased by 8-20 times; and no odor emits in the manure fermentation process under the actions of the proteinase and lipase. By organically combining the livestock/poultry manure field returning and straw mechanical pulverization field returning, and the livestock/poultry manure is used as a crop straw accelerator to accelerate the rotting of the straws under the action of the mixed bacteria in the manure. Compared with the single straw mechanical pulverization field returning process, the method obviously shortens the straw rotting time, solves the problem that the emergence of seedlings of the seeds can be influenced during seed sowing since the straws can not be easily rotten and returned to the field, and is capable of obviously improving the aggregate structure in soil and enhancing the contents of organic matters, nitrogen, phosphorus and potassium in the soil. Compared with the straw pulverization-stack retting fermentation field returning process, the method is simple, simplifies the application links, is easier to operate, and saves abundant human resources and material resources.