1、 Winter shear
Winter is the dormancy period of apple trees. After flowering and fruiting, it has consumed a lot of nutrients, and pruning is particularly important at this time. If the tree crown is large, it shall be thinned in time to ensure internal ventilation and light transmission. Young trees should be trimmed slowly to promote the formation of flower buds. Older trees need to be cut short to promote branching. Some branches with more flower buds should be removed to ensure the supply of nutrients p>
2、 Pruning bud
Because the buds in the middle and back of apple branches are not easy to germinate, it is necessary to prune the buds to promote their branching. To carve a trace 0.5cm in front of the bud, the depth is about a quarter. At the same time, the buds on the competing branches and the buds on the back of the auxiliary branches should be deducted to avoid the consumption of nutrients by branching p>
3、 Double shear
Re cutting is a supplement to winter cutting, which is usually carried out after germination. Trees that grow slowly and have not been cut in winter should be re cut at this time. For the trees with vigorous growth, only the bone dry branches are cut in winter, and the others are reserved for re cutting p>
4、 Sparse bud
Bud thinning is to ensure that the fruit has more nutrients and fuller fruit. Before flowering, that is, in mid and late April. Keep only the central flower and 1 side flower, and remove all the others, but keep the cluster leaves p>