According to different seasons, Ginkgo biloba pruning is generally divided into winter and summer pruning.
Winter is the main period of Ginkgo pruning, which is of great significance for cultivating high-yield tree forms and increasing the yield in the second year. Winter cutting is best carried out in early winter or early spring. In severe cold season, it is not allowed to cut, otherwise the wound is difficult to heal, and it is easy to suffer from freezing injury and physiological drought. Once a year, maintain and prune, prune competitive branches, excessive branches, dead branches, sagging and aging branches, so that there are many short branches on the branches, and carry out top tip retraction, etc. The amount of pruning in summer is not big. It can be combined with the work of wiping bud, picking heart, circumcision, girdling and so on.
The male trees of Ginkgo biloba planted and propagated are all reshaped in the way of central leadership, and the skeleton branches with larger opening angle are selected as far as possible, which can make the tree more magnificent. The female plants were shaped by central or multi leader, but the opening angle of the skeleton branch should not be too large, so as not to be burdened when growing up. Every year, when selecting and retaining new auxiliary branches, cut off the lowest auxiliary branches. At the same time, consider some proper arrangement for different tree shapes. Sparse cutting is mainly for miscellaneous branches. Medium short cutting is generally used to change the branch angle, and pay attention to keep the appropriate cutting buds.
