梨幼树时期主要任务是整形,选留和培养各级骨干枝;通过修剪促生结果枝,使幼树早期丰产。其关键措施有:一、培养合理骨架,加快长树扩冠快速成形的原则是:因树修剪,随枝造形,有形不死,无形不乱。选留 The main task of pear saplings is shaping, selection and cultivation of backbone branches at all levels; pruning to promote the results of the branches, early saplings so young. The key measures are: First, to develop a reasonable framework to speed up the expansion of the tree crown rapid prototyping principle is: tree pruning, with the stick shape, visible undead, invisible chaos. Choose to stay