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作者1976年倡导氮肥分期定量补差用肥,是用土壤速效氮含量做根据,研究获得经济效益最高的小麦、玉米在关键生育期所需的土壤速效氮含量作为氮肥分期定量指标,其中包括施氮前测定的0～40cm土壤速效氮含量和即将施入的化肥氮合计总量。补差用肥法即:化肥氮的用量、等于氮肥分期定量指标减去土壤速效氮含量所得的差数,每差1ppm亩施化肥氮量0.3斤,差多少补多少。1979～1986年作者用此法指导生产示范78万亩,比现有施肥法提高氮肥利用率30个百分点本项研究结果与1984年以来第九届国际化肥会议、及第六届国际作物营养会议交流的经验及苏联、西德、英、美等国同类研究的报导比较,科学理论与定量指标都很接近。
In 1976, the author advocated that the nitrogen fertilizer staging quantitatively compensating fertilizer is based on the available nitrogen content of soil, and the available nitrogen content of the soil needed for the key growing period of wheat and maize is the quantitative index of nitrogen fertilizer staging, including nitrogen Before the determination of 0 ~ 40cm soil available nitrogen content and the total amount of fertilizer nitrogen to be applied. Compensatory use of fertilizer method that is: the amount of nitrogen fertilizer, nitrogen equal to the quantitative index of the soil minus available nitrogen content of the difference, each poor 1ppm mu fertilizer nitrogen 0.3 pounds, the difference between how much make up. From 1979 to 1986, the author used this method to guide the production of 780000 hectares, which increased the utilization rate of nitrogen fertilizer by 30% compared with the existing fertilization method. The results of this study are the same as the results of the Ninth International Fertilizer Conference since 1984 and the Sixth International Crop Nutrition Conference The experience of exchanges and the reports of similar studies in the Soviet Union, West Germany, Britain, the United States and other countries show that scientific theories and quantitative indicators are very close.