叶面Fe肥对平欧杂种榛树营养元素含量的影响

Influence of Applying Foliar Fe Fertilizer to Hazelnut Tree on the Content of Nutritional Elements in the Leaves of Hybrid Hazelnut

为初步确定榛园榛树叶片黄化是否由缺Fe或缺Cu引起,对9个不同品种(系)、叶片黄化程度一致的平欧杂种榛树进行了叶面增施Fe肥处理,测定了处理前后榛树叶片内叶绿素和N、P、K、Ca、Mg、Fe、Cu、Mn、Zn的含量,并对两次测定结果进行了比较分析。结果表明,增施Fe肥能有效地使榛树黄化叶片转绿;单独增施Fe肥效果优于合施Fe、Cu肥;增施Fe肥在一定程度上降低了黄化榛树叶片内K、Zn的含量。

In order to initially identified if the etiolation of hazelnut leaves in hazel park caused by the lack of Fe or Cu, nine varieties （lines） were used as materials. Foliar Fe fertilizer and Fe＋Cu fertilizer were sprayed to etiolated hybrid hazelnut tree and the contents of chlorophyll and concentration of N, P, K, Ca, Mg, Fe, Cu, Mn, Zn in the leaves both before and affter applying Fe fertilizer were tested. Two replicates were analyzed. The results showed that the Fe fertilizer could effectively promote hazelnut leaves turn green. The effect of applying Fe fertilizer in turning leaves green was better than that of applying Fe＋Cu fertilizer. Applying Fe fertilizer significantly reduced the content of Zn and K in leaves.