Effect of long-term fertilization on soil fertility
长期施肥对土壤肥力的影响

This paper reviewed the study advances on the effects of long-term fertilization measures on soil fertility indexes, such as soil organic matter, nitrogen, phosphorus and potassium content, microbial biomass and counts as well as enzyme activities. It proves that organic manure and organic manure applied with chemical fertilizers were important for sustaining and improving soil fertility and beneficial for the sustainable development of agroecosystem.