And the order of element concentration was first n, next K, then Ca, P, Mg, Fe, Mn, Zn and Cu in order.

在元素含量的顺序上是氮最高，钾次之，随后依次为钙、磷、镁、铁、锰、锌、铜。

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Salinity negatively affected the growth of wheat; also de-creased the dry weight and the uptake of wheat and foliar application of humic acid increased the uptake of P, K, Mg, Na, Cu and Zn.

对在不同浓度的盐胁迫条件下，叶面喷施液态腐植酸和土壤施用腐植酸类物质对小麦作物生长和矿物营养吸收的影响进行了研究。

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The content of reducing sugar, K, Fe, Mn, Cu and Zn were higher, but that of nicotine, chloride ion and Mg were low in tobacco leaf.

烟叶还原糖、钾、铁、锰、铜和锌含量较高，烟叶尼古丁、氯离子和镁含量偏低。

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