富士苹果近几年发展迅速,河北省已有2.7万hm~2(公顷)左右。在冀中南地区,幼树生长旺盛,枝量少,枝类不合理,不易成花结果。因此控制其旺长,增加枝量,改善枝类组成,促进花芽形成是幼树早期丰产的重要问题。已有资料证实,多效唑可以控制苹果树的营养生长,但对应用浓度、时期及花芽形成的作用报道不一;乙烯利有提高金冠等苹果品种枝量的作用;环剥可以促进苹果花芽形成。我们设想三者配合使用有可能解决富士苹果幼树早期丰产的问题。因此我们于1989-1990年对富士苹果幼树进行了本项试验。1 材料和方法试验在石家庄郊区西营果园进行,该园土质沙壤,土层浅,下为纯沙。供试树为长富2品种,海棠砧,行株距5m×3m,1989年树龄为3年生,生长旺盛,未结果,年新 Fuji Apple has developed rapidly in recent years, Hebei Province has 27,000 hm ~ 2 (hectares) or so. In Jizhongnan area, saplings grow strong, fewer branches, branches unreasonable, difficult to flower results. Therefore, the control of its flourishing, increase the amount of branches, improve the composition of branches, and promote flower bud formation is an important issue early seedling yield. Data have been confirmed that paclobutrazol can control apple tree vegetative growth, but the application concentration, period and the role of flower buds reported different; ethephon can improve the golden crown and other branches of apple varieties; girdling can promote apple flower bud formation. We assume that the combination of the three may solve the problem of early yield of Fuji apple saplings. Therefore, we conducted this test on young Fuji apple trees from 1989 to 1990. 1 Materials and methods The experiment was carried out in Xiyuan Orchard, a suburb of Shijiazhuang. The soil sandy soils were shallow in soil and pure in the sand. The test tree for the long rich 2 varieties, Begonia anvil, line spacing 5m × 3m, 1989 years old, 3 years, vigorous growth, no result, new