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经过５年６４点次的田间氮磷化肥试验，应用电子计算机对试验资料进行分析整理，初步得出了平凉地区旱地冬小麦平衡施肥中有关参数的计算方法。应用土测值确定地力产量和土壤养分校正系数，根据地力产量确定目标产量和养分吸收量，根据冬小麦产量对土壤的依赖率确定肥料利用率，最后应用计算机和施肥参数提出施肥建议
After five years of 64-point field nitrogen and phosphorus fertilizer experiments, the computer data were analyzed and analyzed, and the calculation methods of the balanced fertilization of winter wheat in dryland in Pingliang were obtained. According to the yield of soil, the target yield and nutrient uptake were determined. According to the dependency rate of winter wheat yield on soil, the fertilizer utilization rate was determined. Finally, the fertilization recommendation was put forward based on the computer and fertilization parameters