高密度设施栽培果树的整形原则应该矮干、窄冠和少主枝。根据这个原则,目前设施果树所采取的主要树形有圆柱形、自然开心形、“丫”字形及丛状形等。1.圆柱形整形过程如下:接芽萌发后,不摘心,使其保持中央领导干自然生长。侧枝按自然状态在主干上错落排列,一般不摘心。当中央主 Shaping high-density fruit trees cultivation principles should be short stem, narrow crown and less main branches. According to this principle, the main trees taken by the present fruit trees are cylindrical, naturally happy, “Ah” -shaped and plexiform. 1. Cylindrical shaping process is as follows: Bud bud germination, do not pick the heart, so that the central leadership to maintain its natural growth. Collateral according to the natural state of the trunk on the patchwork, generally not topping. When the central Lord