根据土壤养分含量指导农田施肥,农业发达的国家早已应用于生产。近年来国内不少单位也开展了这方面的研究工作,取得了一些结果。本文在大量田间试验的基础上,通过统计分析拟定一系列的数学模型,对利用播前土壤养分含量预测土壤供肥能力的问题做了一些探讨。 According to the soil nutrient content to guide the fertilization of farmland, developed agriculture has long been applied to the production of countries. In recent years, many domestic units also conducted research in this area and achieved some results. Based on a large number of field experiments, this paper developed a series of mathematical models through statistical analysis, and made some discussions on predicting soil fertility by using soil nutrient contents before sowing.