短截在梨树修剪中如何具体运用?

#N/A
2025-04-08 05:48:51
推荐回答(1个)
回答(1):

短截是梨树修剪中常用的手法,短截程度不同,效果是不一样的。

为提高成枝力和在预定部位促发新枝,可根据需要进行短截;为削弱上强下弱树的顶端优势,可对上部强旺枝条进行极重短截可疏除部分上部旺枝;为增加枝条的粗长比,稳定枝组和骨干枝的角度,增强树体的负载能力,也需进行短截;为增加枝条的着生密度,充分利用空间和光热资源,可适度短截,以增强被截枝条的成枝力并增大粗长比,从而使整个树冠或局部的枝条密度增加,使枝组紧凑,并增加结果部位;通过选留不同方向的剪口芽进行短截,可以有效地改变枝条的开张角度和延伸方向;为了控制生长量过大的部分枝条,可以通过短截减少枝、叶量,从而减少这些枝条的生长量,以保持各主枝间长势的相对平衡;为促进局部枝条或枝组的生长势力,可短截部分过密或弱枝,并选壮枝壮芽带头,此法还可对局部枝条和枝组进行复壮更新;为稳定结果部位不使过快外移,可适当短截辅养枝和枝组,以缩小其占有的空间;为减少大年的花芽数量和提高花芽质量,短截部分果枝,也是有效措施。

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