苹果幼树的拉枝开角──兼谈以拉代剪整形法武玉才苹果幼树拉枝开角，改变了有机营养的运输方向，加速碳水化合物的积累和花芽分化，促使早开花、早结果、早成形，一般提高产量４０％左右。其技术要点是：拉枝开角原则一般宜早不宜迟，可从栽植的当年开始拉枝（或拿枝），... Sowing angle of young apple tree ─ ─ Concurrently talked about the young generation of young apple tree with pull generation scissoring method Opening angle changed the direction of organic nutrition transportation, accelerated the accumulation of carbohydrates and flower bud differentiation, prompting early flowering, early result As early shape, the general increase in output of about 40%. The main points of the technique are as follows: The principle of opening the branches and opening the corners should not be delayed as early as possible, and the branches (or branches) can be started from the year of planting.