苹果树冬剪需要巧纠错内容摘要:
2、早疏除。 不影响主要枝组生长的结果枝,采取相应措施,暂时用来结果,然后逐步分期、分批地疏除或回缩成枝组。 大。 具体表现为:中密度果园采用疏层整形后未能及时落头开心,树冠失去控制,超高、超大。 造成后果:进入盛果期后,株行间交接郁闭,内膛和下层很少见光,形成冠上结果,外围结果,成为“满树果不见产”的“空喜树”。 纠错措施:在大年时疏除 12 个主枝以外的大枝,上部遮光严重的大枝也应取掉,对于其它枝只缩不截;选定适宜部位落头开心,注意培养紧凑型结果枝组;通过回缩,疏除解决好内膛光照问题,使结果部位稳定在树冠中部。 体表现为:只依靠连续缓放形成的单轴枝组结果,造成枝组松散,连续结果能力差,树体易衰弱。 造成的后果:产量不稳定,升降幅度大,大小年明显。 纠错措施:有计划地培养结果枝组,修剪不但要看到明年的产量,更要为第二年、第三年的产量做准备。 比如,果台副梢的二枝、三枝更新,连年结果枝组的由大变小等冬剪手法能很好地解决这一问题。 专利查询。苹果树冬剪需要巧纠错
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