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[目的]检测腰果叶片中铁、锰和铜含量的分布规律。[方法]以海南稳定生产的腰果园为对象,系统布置采样点位,在年度生育期内采集叶片样品,分析腰果叶片的铁、锰和铜微量元素含量,明确其叶片铁、锰和铜微量元素含量分布规律。[结果]腰果叶片铁、铜和锰含量与其年度生育周期有关;10月份腰果树体生长开始活跃,为接下来的花芽分化和果实生长积累养分,其叶片微量元素含量逐渐增加,翌年3月份的坐果期养分消耗较大,其叶片养分含量逐渐降低。[结论]该研究为腰果的养分管理提供了思路。
[Objective] The research aimed to detect the distribution of iron, manganese and copper in cashew leaf. [Method] With the stable orchard of orchards in Hainan as the object, the sampling points were systematically arranged and the leaf samples were collected during the annual growth period. The content of trace elements such as iron, manganese and copper in the leaves of the cashew nuts were analyzed. Element content distribution. [Result] The contents of iron, copper and manganese in cashew nut were related to its annual growth period. In October, the growth of cashew nut tree began to be active, which accumulated the nutrients for the following flower bud differentiation and fruit growth. The content of trace elements in leaves increased gradually. During the fruit-setting period, the nutrient consumption is relatively high, and the nutrient content of leaves is gradually reduced. [Conclusion] The research provided the idea for the nutrient management of cashew nuts.