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利用生物方法———幼苗法作为比较标准 ,对测定土壤有效磷的 7种化学测定方法进行比较研究 ,确定 7种方法都可用于土壤有效磷的测定 ,而以方法 6—Troug法最好
By using the biological method-seedling method as a comparative standard, seven kinds of chemical determination methods for determination of soil available phosphorus were compared to determine that all seven methods could be used for the determination of soil available phosphorus. However, the method 6-Troug method was the best