Short cut thick branches. For young cherry trees in the greenhouse, the central stem and the extension branches of each main branch should be short-cut, and about 1/2 of the branch length should be cut off, and the cut buds should leave full outer buds, which is beneficial to expand the crown. Lightly short truncate the developmental branches with weak moderation, such as horizontal branches and oblique branches, and cut off about 1/4 of the branch length, which is beneficial to increase the amount of short branches, form fruit branches, and produce early fruit.
For the upright shoots and strong vigorous shoots to be preserved, short cut (cut 2/3) or extremely short cut (leave 2 to 3 buds) should be cultivated into small and medium-sized fruiting branches. After entering the fruiting period, the mixed branches should be regarded as the position of the flower buds, and cut at 2 to 4 leaf buds before the flower buds to facilitate the upper part to branch and the lower part to bear fruit.
Lightly thin branches. Greenhouse cherries should have fewer branches during the sapling period, which is beneficial to early fruiting. Ensure there is enough leaf area to promote the healthy growth of young sweet cherry trees. In the initial fruiting period, on the basis of not affecting the yield, the thin branches, diseased branches, over-dense branches, whorled branches, competing branches, elongated branches and auxiliary branches that affect the growth of the main branches should be removed in time without affecting the yield.
By removing useless branches, the lighting conditions in the inner chamber of the canopy are improved, the nutrient consumption is reduced, and the fruit branches become good flowers and produce good fruits. When thinning branches, thin out early. Avoid growing thick branches and then thinning, causing big wounds, causing gum flow and weakening the tree's vigor.
Slowly release the flowers. Young cherry trees bear fruit early and late, depending on the gentle pull of the branches. Generally, the annual growth of the middle and upper branches should be flattened and laid, and some bases should be laid slowly, such as the tree is more vigorous, and the branches should be "four slow, three not slow". It can be slowed down for flat, oblique, thin and weak branches, but not for upright branches, competing branches, and elongated branches. It should be thinned out to avoid growing trees on the tree, disturbing the tree shape and affecting the results.
Top buds broken. The top buds of cherries are mostly leaf buds. For the branches that are weaker to the golden mean, the large leaf buds at the top can be cut to concentrate nutrients and promote the transformation of the branches into fruiting branches, and the early flowering and fruiting. Cutting the top buds of the long fruit branches can increase the fruit setting rate, but the top buds of the flower clustered fruit branches cannot be cut, so as to prevent the flower clustered fruit branches from being unable to elongate and die early.
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