采用大田和盆栽试验相结合的方法，研究了锌对茶树的生长和生理效应。结果表明，适宜的施锌量能促进茶树生长、早发芽、多发芽。增加叶片叶绿素和新梢氨基酸、可溶性糖等含量，多酚氧化酶活性，尤其是硝酸还原酶的活性增强，使碳氮代谢朝着有利于茶叶产量和品质提高的方向发展，而过量施锌，其效果则相反。碳代谢所要求的锌浓度比氮代谢低。茶园土壤施锌和叶面喷锌均有良好效果，但叶面喷施对茶叶品质的作用优于土施。叶面喷锌（ＺｎＳＯ４·７Ｈ２Ｏ，下同）浓度以０．２％－０．５％，土施锌量以１００ｋｇ／ｈｍ２左右为宜。文中还对碳氮代谢对外源施锌的敏感性问题进行了讨论。 The combination of field and pot experiment was used to study the growth and physiological effects of zinc on tea plant. The results showed that appropriate amount of zinc can promote the growth of tea trees, early germination, and more germination. Increased leaf chlorophyll and shoots amino acids, soluble sugar content, polyphenol oxidase activity, especially nitrate reductase activity increased, so that carbon and nitrogen metabolism in favor of tea yield and quality improvement direction, and excessive zinc, The effect is the opposite. The zinc concentration required for carbon metabolism is lower than that for nitrogen metabolism. Tea plantation soil zinc application and foliar zinc spraying are good, but the effect of foliar spray on tea quality is better than that of soil. Foliar zinc (ZnSO4 · 7H2O, the same below) concentration of 0.2% -0.5%, soil zinc content of about 100kg / hm2 is appropriate. The paper also discussed the sensitivity of carbon and nitrogen metabolism to external zinc application.