乔冠梨树轻简化修剪要素

The Pruning Elements of Simple and Economic Pruning in the Modification of Pear with Standard Rootstock and Big Canopy

依据多年研究和实践总结,重点阐述了乔砧梨树的轻简化修剪技术及操作方法,其中包括乔砧稀植大冠梨树在落头降高、收缩枝展和疏枝清膛等改造更新措施后的修剪要点,以及对乔砧密植中小冠梨树不同品种的修剪模式。研究认为,实现乔冠梨树的轻简化修剪,必须具备3个基本要素:树低冠小,骨干枝级次简化与枝组量化,套路相对固定。

The simple and economic pruning techniques were discussed for pear with standard rootstock and big canopy based on the research and practice for many years including lowering the tree height, shortening the branch length, thinning the inner shoots. The pruning model was also discussed for pear varieties with standard rootstock and medium or small canopy. The conclusion was obtained that three basic elements must be possessed for simple and economic pruning in the modification of pear with standard rootstock and big canopy as follows, low height and small canopy, simplified backbone shoot orders and quantized the branches, simple pruning technology and relatively fixed methods.