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采用不同方式将~(89)Sr引入茶树-土壤系统。结果表明,由茶树地上部引入的~(89)Sr,其在茶叶中的浓度比由土壤引入的高得多;其次,在同一处理中,老叶中的~(89)Sr浓度要比嫩梢高。~(89)Sr在不同处理的茶叶中的消长规律也不同:由地上部引入的~(89)Sr,其在老叶、嫩梢中的浓度随时间延长而单调减小;而由土壤引入的,嫩梢中的~(89)Sr浓度起初随时间延长而增高,但在经历某一最大值后便缓慢降低,而老叶中的~(89)Sr浓度起初增加较快,一定时间后便逐渐趋缓并达一饱和值。此外,还确定了嫩梢、老叶对~(89)Sr的CF值。
Different ways were adopted to introduce ~ (89) Sr into the tea-soil system. The results showed that the concentration of ~ (89) Sr in tea leaves was much higher than that of the soil introduced from the top of the tea plant. Secondly, the concentration of 89 Sr in the old leaves was higher than that in the tender leaves High shoots. ~ (89) Sr in different treatment of the law of the growth and decline of tea is also different: the introduction of aboveground (89) Sr, which in the old leaves, young shoots monotonous concentration decreases monotonically with time; The concentration of 89 Sr in young shoots initially increased with time, but decreased slowly after experiencing a certain maximum, while the concentration of 89 Sr in old leaves increased rapidly at first. After a certain period of time It will gradually slow down and reach a saturation value. In addition, the CF value of ~ (89) Sr was also determined in young shoots and old leaves.