Delineating soil nutrient management zones based on ID3 algorithm

Focused on the contents of organic matter, total N, available P and available K in patch data of Dehui city, Jilin Province, this paper studies on soil nutrient management zones using decision tree ID3 algorithm. By experimental analysis, we obtain six partitions and the result shows that sub-area differences in soil nutrient content are similar or less significant but differences between partitions. The method of soil nutrient management zones based on decision tree ID3 algorithm can be used to guide the variable-rate fertilization in precision agriculture, and it also provides an effective classification method for soil nutrient management zones.