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研究了叶面喷施亚硒酸钠对低硒茶园茶叶含硒量、茶树生长发育和茶叶产量的影响。结果表明，在茶树新梢生长过程中，叶面喷施亚硒酸钠可以显著提高茶叶的含硒量，其提高幅度与亚硒酸钠的喷施浓度成线性正相关。喷后第６天新梢含硒量达到最大值，以后以８％─１０％的日速率递减；至第１０天，新梢中的有机硒含量达到８５％，即从喷后第１０天─第１８天内可采摘富硒茶。每公顷喷施亚硒酸钠０．１０ｋｇ─０．４０ｋｇ时，对茶树生长和茶叶产量无明显影响。
The effects of foliar application of sodium selenite on the selenium content in tea leaves, the growth and development of tea trees and the tea yield were studied. The results showed that foliar application of sodium selenite could significantly increase the selenium content of tea leaves during the growth of tea shoots. The increase rate was positively correlated with the concentration of sodium selenite sprayed. On the 6th day after spraying, the selenium content of the shoots reached its maximum value, and then declined at a daily rate of 8% -10%. On the 10th day, the organic selenium content in the shoots reached 85% Selenium-rich tea can be picked in the 18th day. Per hectare spraying sodium selenite 0.10kg ─ 0.40kg, the tea tree growth and yield no significant effect.