Method for pig manure stacking fermentation

The invention relates to a method for pig manure stacking fermentation. The method comprises the following steps: (1) performing nutrition allocation; (2) regulating the carbon-nitrogen ratio; (3) adding a fermentation bacteria agent; (4) fermenting. The method for the pig manure stacking fermentation, provided by the invention, has the beneficial effects that calcium superphosphate is added in fresh pig manures, so that phosphorus elements are supplemented, the bacteria fertility can be enhanced, the fermentation speed is accelerated, ammonium carbonate easy to volatilize in the fresh pig manures can be converted into ammonium phosphate, the loss of nitrogen elements is prevented, and meanwhile, the defect of low content of phosphate fertilizers in the fresh pig manures is overcome; ferrous sulfate can convert the ammonium carbonate in the ammonium carbonate into the ammonium phosphate with stale property to play a role in preventing the loss of the nitrogen; humic acid in the fresh pig manures can reduce th