Decomposition Characteristics, Nutrient Release, and Structural Changes of Maize Straw in Dryland Farming under Combined Application of Animal Manure

Straw and animal manure are major organic waste materials from agricultural ecosystems. Different kinds of combined with straw (AM-S) may have varying effects on the decomposition, nutrient release, structural changes maize straw. Using Humic Cambisols soil as experimental area, decomposition characteristics under co-application were studied following nylon net bag landfill method. The experiment involved four treatments: only (S), plus ox (SO), chicken (SC), pig (SP). treatments AM-S accelerated increased release rate nutrients components (cellulose, hemicellulose, lignin). During 240 days study, showed a trend increasing rapidly in first stages then slowly latter all treatments. At d, rates carbon 65.25–71.87% 64.04–69.35%, respectively. end experiment, order for final nitrogen (N), phosphorus (P), potassium (K) was K (93.25–96.56%) > P (42.25–55.08%) N (40.01–52.23%). Moreover, scanning electron microscopy that SP treatment had highest degree compared other purpose this study to screen effective can promote provide reference rational use management. In conclusion, suggested should be adopted systems, especially treatment, it more conducive promoting nutrients.