20世纪 90年代初新建的红富士苹果园 ,一般都在 12 0 0株 / hm2 ～ 16 50株 / hm2 ,在“轻剪、长放、多留枝”的理论指导下 ,由于相应技术没跟上 ,从而使树体形成大枝多、小枝少 ,外围枝多、内膛枝少 ,纵横交叉、外强内弱的不良结构 ,出现了在初果期甚至未结果已形成了密闭 ,树 In the early 1990s, the newly-built Red Fuji apple orchard was generally in the range of 1200 plants / hm2 to 1650 plants / hm2. Under the guidance of the theory of “light cutting, long cutting, leaving many branches”, due to the lack of corresponding technology , So that the tree form a large number of branches, less twigs, peripheral branches and more, less broom branches, vertical and horizontal crosses, the weak outside the strong weak structure, appeared in the initial fruit period or even the results have not formed a closed tree