培养树形骨架,加快长枝扩冠:每年选好延长枝头,进行中截,促发长枝,加速扩冠。采取多种措施,拉开分枝角度:如拉枝、撑枝、坠枝、选外芽等,因为“丰产不丰产,开角是关键”。平衡树势,理顺主从:如果树势不均衡,强枝益强,弱枝益弱,养分、长势、产量、光照都会出问题。修剪时要使中心干强于主枝,主枝强于侧枝,骨干枝强于辅养枝。对强树强枝采用缓势修剪,即多放少截,只疏不堵,去强直枝,留平斜枝,开角度用弱枝弱芽代头。特别要疏除争夺能力最强最旺的直立多年生枝。对弱树弱枝,则采用助势修剪法,即多截少放、重缩、轻疏、去弱留强,保留改造徒长枝,抬高角度,利用极性,用强枝上芽代头。改善冠内光照:梨树盛果期,最易出现“上遮下,外包内,前抢后”的争光、夺养的情况,所以必须及时去掉中心 Cultivate the tree skeleton, accelerate the expansion of long branches: Each year choose to extend the branches, in the cut, and promote long branches, accelerate crown expansion. Take a variety of measures to open the branch point of view: such as pull branches, branches, fall branches, the election of the outer bud, etc., because “high yield is not high yield, open angle is the key.” Balance the tree potential, straighten out the Lord: If the tree is uneven, strong branches and strong, weak branches and weak, nutrients, growth, yield, light will be a problem. Pruning should make the center dry stronger than the main branch, the main branch is stronger than the side branches, branch branches stronger than the supporting branch. On the strong branches of strong tree pruning, that is, put more and less truncated, only sparse non-blocking, to strong straight branches, leaving oblique branches, opening angle weak branches of the spleen head. In particular, we should remove the strongest perennial branches that have the strongest and most competitive power. Weak weak branches on the tree, then the use of manicure pruning method, that is, cut more than a few, re-shrinking, light sparse, weak to stay strong, to retain the transformation of leggy branches, raise the angle, the use of strong branches on behalf of the bud . Improve the crown light: pear fruit, the most prone to “on the cover, outsourcing, before the grab ” glory, the situation of nourishment, it must promptly remove the center