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我省配方施肥采用四种方法,即养分平衡法、地力差减法、回归设计法和氮磷比例法。1986年我们在互助县不同地区,主要作物上设置了养分平衡法、地力差减法与当地习惯施肥或等价施肥相比较的大田验证试验,以探讨这两种配方施肥方法的可行性、实用性和具体增产效果。通过互助县10个验证试验结果的分析,初步确定了当前适宜在
Four methods of formula fertilization in our province, namely, nutrient balance method, soil subsidence method, regression design method and the proportion of nitrogen and phosphorus method. In 1986, we set up field validation experiments in different regions and main crops in Huzhu County to compare the nutrient balance method, the field subtraction method with the local custom fertilization or equivalent fertilization to explore the feasibility and practicability of the two kinds of formula fertilization methods And specific stimulation effect. Through the analysis of the results of 10 verification experiments in Huzhu County, it is preliminarily determined that the current situation is suitable