各地的板栗树 ,多数都从未进行过整形修剪 ,因此大多树形紊乱 ,主枝过多 ,侧枝小而着生远 ,极性生长旺盛 ,通风透光不良。形成外围和上部枝多而密集 ,内膛和下部枝枯死、光秃、无实、大小年明显 ,产量不稳。为此 ,要进行合理的整形修剪。现将其主要修剪技术要点介绍如下 :1　因 Chestnut trees around the country, most of them have never been plastic trim, so most of the tree disorder, the main branch is too much, collateral small and students far, strong polar growth, poor ventilation and light. The formation of peripheral and upper branches of more and more dense, bore and lower branches withered, bare, no reality, the size of the year, yield instability. To this end, to make a reasonable plastic trim. Now the main pruning techniques are as follows: 1 because