锌对茶树体内无机元素含量及分布的影响

测定了不同浓度处理的水培茶苗根、茎、叶中及土施和喷施Zn的茶树叶中P、K、S、Ca、Mg、Mz、Al、Zn、Mo、Na、B、Cu、Fe的含量。结果表明，茶苗对Zn有较强的吸收能力，Zn处理＜0.50ppm时，茶苗体内Zn大多运往叶中；当叶中达生理需要量后，Zn也在根、茎中积累；当生长介质中Zn达一定量后，Zn在叶中积累。茶树Zn-P间有明显的拮

The Effects of Zinc on Content and Distribution of Inorganic Elements in Tea Plants

The content of P,K,S,Ca,Mg,Mn,Al,Zn,Fe,Cu,Mo,Na,B in root,stem and leaf of wa-ter-cultured tea seedlings tveated with Zn in solution,and in new shoots of by tea plant spraying and roil application of different concentrations of Zn,were determinated. The results showed that the ability of Zn absorption was stronger in tea seedlings, when the concentration of Zn > 0. 50 ppm,the more Zn translocated to leaves from roots. Zn accumulated in roots and stems when the concentration of Zn was at the critical level in leaves; Zn accumulated in leaves when the concen-tration of Zn in culture medium reached a certain level. There was significant antagonism between Zn and P,but the antagonism was in some extent. Zn decreased the content of Ca,Mg,Cu,Mn, K,S,Al,B in water-cultured seedlings and increased the content of K,S,Al, B in new shoot of tea plant treated by spraying and soil application. Meanwhile, Zn decreased the content of Mo and Na in tea plants significantly. There was an antagonism between Zn and Mo,Na in tea plants.