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苹果幼树期的整形修剪,要注意两个主要问题,第一是适当多截,各级骨干枝头必须中截,以促进树体生长和树冠的扩大,尽快形成良好的树形。第二是对一般枝条采取轻剪缓放,使树势趋于缓和,增加总枝量和早期封顶枝的比例,提早结果丰产。具体的整形修剪技术包括以下几点。一、树形的培育幼树定植株行距4—5米以上应采用基部三主枝邻近半圆形;4—5米以下的可采用自由纺锤形;2—3米以下的可试用细纺锤形或圆柱形。临时加密株可采用折叠式树形。狭面梯田上的幼树可用“四主枝”或“六主枝”十字形树形。幼树干高50—60厘米,干上部还要留有15—20厘米的整形带。在选
Apple sapling plastic trim, pay attention to two major issues, the first is more appropriate cut, the backbone of the branches at all levels must be cut in order to promote the growth of the tree and the crown to expand, as soon as possible to form a good tree. The second is to take a gentle cut on the general branches slowed down, so that the trend tends to ease the branches to increase the total amount of branches and the proportion of early tops, the early results of high yield. Specific shaping pruning techniques include the following points. A tree-shaped cultivation of young trees Planting spacing of 4-5 meters above the base should be used three main branches near the semicircle; 4-5 meters below the free spindle can be used; 2-3 meters below the trial fine spindle Or cylindrical. Temporary encrypted strains can be folded tree. Slender terraced saplings available “four main branches” or “six main branches” cross-shaped tree. Young trunk height of 50-60 cm, but also left the upper part of the 15-20 cm plastic band. In the election