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讨论了传统的土壤测试方法的弊病，并指出了某些弊病的不可克服性。用阴、阳离子交换树脂来提取土壤中植物有效养分的方法业已引起人们的广泛重视。作者根据多年的研究，论证了这个能反映养分对植物有效性的方法是今后土壤测试的方向。
Discusses the shortcomings of the traditional methods of soil testing, and points out the insurmountable of some ills. The method of extracting anion and cation exchange resin from soil to plant effective nutrient has drawn people’s attention. Based on years of research, the author demonstrated that this method of reflecting the availability of nutrients to plants is the direction of soil testing in the future.