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用ASI法和常规方法对128个紫色土样的微量元素Cu、Zn、Fe、Mn进行提取测定,经简单相关分析得出:ASI法提取的有效Cu、Zn、Fe、Mn与常规方法提取结果均呈极显著相关;而从土壤的酸碱性来看,两种方法在酸性土上对Cu、Zn、Fe、Mn的测定值分别都达到极显著相关,在中性和石灰性土上只有Cu、Fe分别呈极显著相关。小麦盆栽试验结果表明,ASI法与常规方法分析的Cu、Zn、Mn含量与小麦吸收量间都呈显著或极显著的正相关关系,但是ASI法和常规方法分析的Fe含量与小麦对Fe的吸收量均无显著相关关系。
The contents of Cu, Zn, Fe and Mn in 128 purple soil samples were determined by ASI method and conventional method. The results of simple correlation analysis showed that the available Cu, Zn, Fe and Mn extracted by ASI method were the same as conventional methods Were extremely significant correlations; from the soil acid-base point of view, the two methods on acid soil Cu, Zn, Fe, Mn measured values were extremely significant correlation, respectively, in the neutral and calcareous soil only Cu and Fe were significantly correlated. The results of pot experiment in wheat showed that the content of Cu, Zn and Mn in wheat leaves analyzed by ASI method and conventional method showed a significant or very significant positive correlation with the amount of wheat absorbed. However, the contents of Fe and AS and AS No significant correlation between absorption.