【摘要】 分别用ASI法与我国常规分析方法测定了湖北省3大类旱地土壤共153个样品的有效P、K、Fe、Mn、Cu、Zn、Ca和Mg的含量,并进行了相关性研究。结果表明,虽然由于提取剂本身的特性、浸提浓度、水土比和作用时间等测定条件不同,由两种方法得到的土壤有效养分含量数值也各不相同,但是ASI法对土壤有效养分的测定值与我国常规分析方法的测定值呈极显著正相关。更多还原

【Abstract】 Available P, K, Fe, Mn, Cu, Zn, Ca and Mg of some upland soils in Hubei province were determined by both ASI and routine methods. Results showed that the contents of soil available nutrients tested by the 2 methods were different, due to different measuring conditions (characteristics and concentration of extracting solution, water to soil ratio, processing time, etc), but the contents of soil available nutrients tested by ASI method was significant positively correlated to those tested by routine method used in China.更多还原