苹果单轴延伸修剪法,就是对主枝、辅养枝上的当年生枝不短剪或破顶甩放,对枝条上旺枝多疏不截、刻芽抠芽、去直留斜的修剪方法。 一、单轴延伸的好处 1.削弱顶端优势、促发短果枝 苹果顶端优势是生长发育规律中的一种枝芽特性。顶端优势过强,树势过旺而不易成花;单轴延伸修剪,能极大地削弱顶端优势,促进枝条下部生长健壮, Apple uniaxial extension pruning method, that is, on the main branch, supporting branch of the year branches are not short cut or broken top throwing branches on the branches more sparse, carved buds to shoot straight to the left ramp pruning method . First, the benefits of uniaxial extension 1. Weakened the top edge, to promote short-limbed Apple top edge is a law of growth and development of buds characteristics. Top superiority is too strong, the tree is too strong and difficult to flowering; uniaxial extension pruning, can greatly weaken the top edge and promote the growth of robust branches,