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离子交换树脂在农业上的应用已有近５０年的历史，早期的研究主要集中在用阴离子交换树脂提取土壤中的磷；然后用阳离子交换树脂研究了土壤中钾的有效性及缓效钾的释放，后来开始用离子交换树脂测定土壤中营养元素。离子交换树脂在测定土壤养分的研究方面经历了树脂颗粒、、树
Ion exchange resins have been used in agriculture for nearly 50 years. Earlier studies focused on the extraction of phosphorus from soils by anion exchange resins. Then the cation exchange resins were used to study the availability of potassium in soil and the effects of slow-acting potassium Released, and later began to use ion exchange resin determination of soil nutrients. Ion exchange resins have been subjected to resin particles and trees in the study of the determination of soil nutrients