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怎样调控鸭梨树势整形修剪法梨树的树形一般分为三挺身形，多主枝开心形，多主枝分层形等，对树势较强的梨树修剪时应以换头、拉枝、环剥等技术为主；对树势较弱时应以疏枝、回缩、落头为主，调控树势，促进花芽分化，提高产量。一、树势较强时技术换头：中央领导过强，在...
How to control the pear pear plastic surgery pruning tree pear tree is generally divided into three body shape, multi-main branch happy-shaped, multi-layered main branch, etc., on the strong tree pear pruning should be replaced, Pull the branch, girdling and other technology-based; on the weaker when the tree should be thinning, retraction, falling head-based control of tree vigor and promote flower bud differentiation and increase production. First, the stronger the tree when the technical change: the central leadership is too strong, in ...