作者针对肯尼亚一些小生产者茶场施肥过量经济效益低的问题,在 Kericho 进行的高量施肥试验的初步结果表明:①第一年高量施肥后将每年施氮素提高到每公顷500公斤,成年茶树能产生效应,超过这一水平则会引起毒害;②能获得高利润的最经济的施氮量是每年每公顷150～200公斤,高于这一用量,尽管茶树仍有效应,但赚利降低,由于投入的 In response to the low economic benefits of over fertilization in tea plantations in some small producers in Kenya, the preliminary results of the high-level fertilization experiments conducted in Kericho showed that: ① In the first year after high-level fertilization, annual nitrogen application was increased to 500 kg per hectare, Tea trees can produce effects beyond which toxicities can be caused. ② The most economical nitrogen fertilizer to achieve high profits is 150 to 200 kg per hectare per year. Above this level, although tea trees are still effective, profits Lower, due to the investment