鸭梨幼树的冬剪鸭梨树垂直根发达，生长先于水平根，因而树体极性强、枝量少，鉴于这一特点，冬剪时须注意以下４个问题。ｌ控制上强下弱幼树易出现中干强、主枝弱现象，可采用不剪中干，待来年春拉中干，使之缓放成花结果，在较低的位置上培养１个直立枝做新中干，也可采... The vertical root of winter pear cut tree of pear tree is well developed and grows ahead of the horizontal root. Therefore, the tree is strong in polarity and less in the branch. In view of this characteristic, the following four problems should be paid attention to in the winter cut. l Controlling the weak young saplings prone to dry strong, the main branch of the weak phenomenon, can not cut in dry, spring and dry in the coming year, so that the slow release into flowers, in a lower position to cultivate a Stand upright dry branches can also be taken ...