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土壤中的Cu、Zn、Fe Mn、B等化学元素是植物生长发育所必须的微量元素。营养元素就是指能被植物所吸收利用的有效微量元素。近年来多采用二乙三胺五乙酸、氯化钙和三乙醇胺混合浸取液(简称DTPA浸取液)浸提土壤中的有效性微量元素。浸出液可采用比色法、原子吸收法、等离子发射光谱法和极谱法等进行分析。本文建立了
Cu, Zn, Fe Mn, B and other chemical elements in the soil are necessary trace elements for plant growth and development. Nutritional elements refer to effective trace elements that can be absorbed by plants. In recent years, the use of diethylenetriaminepentaacetic acid, calcium chloride and triethanolamine mixed leaching solution (referred to as DTPA leaching solution) leaching soil effective trace elements. The leachate can be analyzed by colorimetry, atomic absorption spectrometry, plasma emission spectroscopy and polarography. This article was established