梨树盛年如何修剪?


盛果梨树的修剪原理是什么?梨树满果怎么修剪?高峰期修剪梨树需要注意什么?下面简单介绍一下,供网友参考。

盛果期的梨树如何修剪?

一般12~13年生后,梨树将进入结果期,树形已完成,骨架已形成,树势趋于稳定,有大量的果实和稳产优质的条件。此时修剪的主要任务是:保持适度健壮的树势和良好的树体结构,改善光照,调节生长与结果的矛盾,更新复壮结果枝群,防止大小年结果,尽可能延长结果期。

适中健壮的梨树是稳产高产优质的基础。树势中等的标准是:外围新梢生长30 ~ 50cm,长枝占总枝数的10% ~ 15%,中短枝占85% ~ 90%,短枝占总枝数的30% ~ 40%。叶厚,芽满,枝壮,布局合理。如果树势偏强,用慢修剪手法,多疏少伐,直立走平斜,弱枝带头,多留花多结果,以果压势。如果树势较弱,就用修剪的手法来帮助它,提高枝条的角度,加强枝条和芽的带头作用,把过于密集的枝条削薄削薄,加强回缩和修剪,少留花少果,使树恢复活力。中度树的修剪要稳,不能忽视重,各种修剪方法要配合使用,并及时更新复壮结果枝组,保持树势的适度健壮。

盛果期的梨树如何修剪?

梨树结果枝群中的枝可分为三类:结果枝、储备枝和营养枝,各占1/3。修剪时应区别对待,进行平衡修剪,以保持结果枝群的持续结果能力。对于新培育的结果枝群,要抑制前者,促进后者,使枝群紧凑;衰老枝组应及时更新复壮,采取去弱留强、去斜留直、去密留稀、少花少果等方法恢复其生长势。多年生枝条结果后会及时回缩,加强枝芽牵拉,缩短枝轴。去掉细而密的枝干,压缩重叠的枝干,打通空间和光路。

盛果期的梨树如何修剪?

梨树是喜光树种,保持树冠通风透光是盛果期树木修剪的主要任务之一。解决树冠内光照问题的方法有:

1.由于各种原因,梨树中心的领导种植了过多的枝条,导致树冠内枝条过于密集,不仅影响通风透光,也不利于树木作业,如喷洒化学药剂等。还会导致大树枝下部出现秃带。然后要根据预定的树形和实际情况重新选择主枝和其他骨干枝。去除多余的大枝和辅助枝,或将辅助枝改造成结果枝,但大枝要逐年去除改造。锯断大树枝要注意锯法。因为大树枝体积大,伤口也大,容易撕裂树皮。应该使用保护剂来防止伤口被细菌感染。冬季修剪时,最好给被修剪的枝条留30cm长的木桩。春天过后,树液会流出来,然后把树桩锯掉,伤口就容易愈合了。锯开的伤口更大。表面粗糙。用锋利的修枝刀将银口的树皮和木质部削平,然后用2%硫酸铜溶液或0.1%升汞水或刘诗混合原液消毒,并使用煤焦油、石蜡、铅油或防诱漆等保护剂。

2.门口梨树侧枝的形成主要是由于

4.留花留果是提高果实品质、降低果龄的重要措施。一般弱梨树在采取促花措施后,往往会形成花蕾过多、花果过多的现象,因此要采取疏花疏果措施。否则会加重大小年现象,折断大枝,树势衰弱,易干腐,尤其是西洋梨(巴厘)。梨树的开花顺序是先开花。与苹果相反。一般先开的花,它的幼果大,发育好,要留着。

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