自从稳定性同位索~(15)N引进农业化学和生物化学的研究实践中以后,我们可以详细地了解茶树对肥料的吸收过程,同时还可以进一步追迹它在体内的代谢过程。研究肥料氮进入新梢和成茶含氮物质的途径,特别是研究肥料氮进入所有非蛋白质化合物、咖啡因、游离氨基酸、茶酚及复杂的肽类化合物等过程更具有科学和试验的意义。 Since the introduction of the stability isotopes (15) N into agrochemical and biochemical research practices, we can understand in detail the tea plant’s absorption of fertilizers while further tracing its metabolic processes in the body. It is more scientific and experimental to study the process of fertilizer nitrogen entering into shoots and tea-forming nitrogenous substances, especially studying the process of fertilizer nitrogen entering into all non-protein compounds, caffeine, free amino acids, tea polyphenols and complex peptides.