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通过稀植园和密植园苹果壮旺幼树的修剪试验,明确了长放修剪方法可节省用工,有利于树体生育,成花早,株产高,尤其适用于密植园的苹果栽培。开始采用长放修剪的树龄,密植园苹果树宜在2—3年生;稀植园苹果树宜在株间树冠相距1.5—2m时进行、截放修剪方法适用于既需扩冠又要较早结果的苹果壮旺幼树。短截修剪方法修剪量大,不利于苹果壮旺幼树的生长发育,结果晚,株产低,且费工;但对栽后缓苗期树或衰弱树还是适用的。
Through the pruning experiments of apple seedlings and young plants in the plantation and the densely populated garden, it is clear that the long-cut pruning method can save labor, is conducive to the growth of tree, early flowering and high plant yield, especially suitable for apple cultivation in the close-planting garden. Began to use long-pruning tree age, densely populated apple tree should be 2-3 years; sparsely-planted apple tree should be between 1.5-2m away from the tree when the crown, cut pruning method is suitable for both crown and Earlier results apples thrive on young trees. Pruning method pruning large, is not conducive to apple vigorous sapling growth and development, the results of late, low strain production, and labor; but after transplanting Huanmiao tree or frailty tree is still applicable.