通过测定不同施肥制度下大豆土壤微生物量C、N的动态变化,探讨了不同施肥制度对大豆土壤的培肥效应。研究结果表明,与无肥、单施有机肥、单施化肥相比,有机肥与N、P、K化肥配合施用能显著增加大豆各生育时期的土壤微生物量C、N,促进土壤微生物量显著增长,增强了土壤养分容量的供应强度,有利于培肥土壤。 By measuring the dynamic changes of soil microbial biomass C and N under different fertilization systems, the effects of different fertilization systems on soybean soil fertility were discussed. The results showed that the application of organic manure and N, P and K chemical fertilizers could significantly increase the soil microbial biomass C and N during the growth stages of soybean and promote the soil microbial biomass significantly compared with no fertilizer, single organic fertilizer and single chemical fertilizer Growth and enhance the supply intensity of soil nutrient capacity, is conducive to fertilizing the soil.