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一、偏冠树的改造 苹果偏冠树即一边有枝,一边无枝,或一边枝多,较强;一边枝少,较弱,该现象是当前苹果生产中普遍存在的问题。由于偏冠树的形成原因较多,我们在总结本地生产实践的基础上,借鉴外地的经验,针对其形成原因而提出改造措施如下: 1.因苗木一侧穿子秕,瘦不萌枝的偏冠树。①在定干或中心延长干剪截后,新梢长20～30厘米时摘心,第2叶留向缺枝面,使腋芽抽生新枝,第1叶腋芽萌发中心延长枝。
First, the partial crown transformation apple partial crown that is a branch, while no branches, or side branches and more strong; while branches less, weaker, the phenomenon is the current widespread problems in apple production. As there are many reasons for the formation of crown crowns, on the basis of summing up the local production practices, we draw on the experience of other countries and put forward the reform measures according to the reasons for their formation. Partial crown tree. ① in the dry or center to extend the cut after the cut, the new shoots 20 to 30 cm long topping, the second leave to the lack of branches, axillary buds to make new branches, the first leaf axillary bud germination center to extend the branch.