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在高寒地区草甸暗棕壤耕地设置肥料定位试验,经七年轮作施肥结果表明,有机肥、麦秸及化肥对作物产量和土壤肥力都有不同程度的良好效果;有机肥、麦秸对大豆、化肥对小麦的增产效果尤佳。单施化肥 N、P_2O_5各5斤/亩,与有机肥配施化肥 N、P_2O_5各5斤/亩的经济收益高。要在短期内把大面积土地的土壤肥力水平全面提高是不容易的。单施化肥只能维持耕层土壤有机质含量,但不能提高有机质水平。对化肥培肥土壤的观点应具体分析,全面研究。
Fertilizer experiment was set up on meadow dark brown arable land in alpine area. After seven years of fertilization, the results showed that organic fertilizer, wheat straw and chemical fertilizers had different effects on crop yield and soil fertility. Organic fertilizer, Increased yield of wheat is particularly good. Single fertilizer N, P_2O_5 each 5 kg / mu, with organic fertilizer with fertilizer N, P_2O_5 each 5 kg / mu of high economic benefits. It is not easy to comprehensively raise the level of soil fertility in large areas of land in a short period of time. Fertilizers alone can only maintain soil organic matter content, but can not increase the level of organic matter. Fertilizers fertilize the soil point of view should be specific analysis, a comprehensive study.