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在提出土壤养分有效性测定概念的基础上 ,本文对各种土壤养分有效性的测定方法进行了总结 ,讨论了这些方法的测定机理、测定效果及近几年的进展。这些方法包括用于磷钾等元素测定的树脂法、用于氮测定的生物培养法和化学提取法、磷测定的氧化铁试纸法和氢氧化铁透析管法和钾的四苯硼钠法
Based on the concept of measuring soil nutrient availability, this paper summarizes the determination methods of various soil nutrient availability, and discusses the determination mechanism, the measurement results and the progress of these methods in recent years. These methods include the resin method used for the determination of elements such as phosphorus and potassium, the biological culture method and chemical extraction method for nitrogen determination, the iron oxide test paper method for phosphorus determination, the ferric hydroxide dialysis tube method and the potassium tetraphenylborate sodium method