茶树在生长发育过程中,需要氮素多,施用氮肥增产作用也最显著。据湖南省茶叶研究所资料,与不施肥比较,茶园单施氮肥,平均增产4.75倍,单施磷肥,平均增产仅2.7％,而单施钾肥,平均增产为21.8％。同时氮素肥料的形态不同,也显著影响茶叶的产量和品质。乌山光昭以砂培试验证明,NH_4—N和NO_3—N的比例为1:1时,茶叶的产量最高,而NH_4—N比例愈高,氨基酸含量也愈高。因此,茶园土壤和茶树植株保持一定的氮素水平,以及注意NH_4—N和NO_3—N的比例,是关系到茶叶增产和提高品质的一个重要问题。本研究是对茶园土壤和茶叶的氮素动 Tea tree in the process of growth and development, need more nitrogen, fertilizer application of nitrogen is also the most significant effect. According to the data from Hunan Tea Research Institute, compared with non-fertilization, tea plantation alone applied 4.75 times of average N fertilizer, only applying phosphate fertilizer only increased by 2.7% on average, while applying K fertilizer alone increased the average yield by 21.8%. At the same time different forms of nitrogen fertilizer, but also significantly affect the yield and quality of tea. The experiment of sand culture in Wushan light Zhao proved that when the ratio of NH_4-N and NO_3-N was 1: 1, the yield of tea was the highest, and the higher the proportion of NH_4-N, the higher the content of amino acid. Therefore, keeping a certain nitrogen level in tea plantation soil and tea plantation, and paying attention to the ratio of NH_4-N and NO_3-N is an important issue that relates to tea yield increase and quality improvement. This study is about the nitrogen movement of tea plantation soils and tea leaves