论文部分内容阅读
通过对２０个肥力不同土壤样品的测试分析及盆栽试验，得到２０个土壤的钾含量及相对于最佳处理（ＯＰＴ）的百分产量。并就此两项指标，首次应用模糊聚类分析方法，求出土壤钾的亏缺临界值为７０．６μｇ／ｍｌ。
Twenty soil fertility and yield relative to optimal treatment (OPT) were obtained through the test analysis and pot experiment of 20 fertile soil samples. For the first time, fuzzy clustering analysis method was used to determine the critical value of soil potassium deficient to 70.6μg / ml.