为了从茶园常规技术管理中寻求有效措施,增加正常芽叶生产量,提高可采鲜叶的品质,我所从1981年至1983年采用L_9(3)~4正交表排列田间小区进行了四因素三水平的正交试验。试验方法及头两年的试验结果已有初报(见本刊1983年第一期)。现将三年试验结果分析简结如下: In order to seek effective measures from the conventional technical management of the tea plantation, increase the production of normal shoots and improve the quality of the freshly picked leaves, we used the L_9 (3) ~ 4 orthogonal table to arrange field plots from 1981 to 1983 Factor three levels of orthogonal test. The first two years of test methods and test results have been reported (see the first issue of 1983). Now the three-year trial results are summarized as follows: