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大樱桃幼树生长3～4年时,就要控制树冠的扩大,以免果园郁闭,现介绍五种控制大樱桃密植园树冠的技巧。一、摘心短截。1摘心。新梢摘心可控制大樱桃的旺枝生长,增加小枝量,冬季不抽条,利于提早结果。未成形的幼树,在生长季,利用摘心来增加枝量控制生长,促进早结果:主干延长枝长50厘米时摘心,摘除10厘米。主枝长40厘米时摘掉10厘米(留下芽),对摘心后长出的直立枝留10厘米摘心。基本成形的幼树,对于生长旺盛的新梢一般留10～15厘米长摘心,1年可摘2～4次,到秋季新梢停滞生长为止。2短截。5月下旬至6月上旬对直立枝或过壮的侧枝进行三叶剪(基部留3片大叶剪除),个别壮条可连续两次短截。
Large cherry tree growth of 3 to 4 years, we must control the expansion of the canopy to prevent the orchard canopy, are introduced five kinds of control cherry crown plant tips. First, topping short cut. 1 topping. Topping shoots can control the vigorous growth of cherry, increase the amount of twigs, not pumping in winter, which will help early results. Untyped saplings, in the growing season, use topping to increase the amount of branches to control growth and promote early results: the main branch extension of 50 cm in length topping, removal of 10 cm. When the main branch grows 40 cm, it picks off 10 cm (leaves the bud), and leaves the center of the topping to 10 cm. The basic shape of the saplings, the growth of the new shoots generally stay 10 to 15 cm long topping, 1 year can pick 2 to 4 times, until the fall stagnant growth of new shoots so far. 2 short cut. From late May to early June, the trilobate scissors of the upright branches or overly strong branches (with 3 large leaves removed at the base) can be cut shortly in succession.