Adjustment and transformation of backbone branches

For some jujube trees that have never been pruned before, according to the shaping principle, overlapping branches, staggered branches, parallel branches and thin backbone branches with poor fruiting ability can be removed in batches within 3 to 4 years, and some regenerated branches can be cultivated at the same time. Make all kinds of branches grow and develop in a certain direction, improve the ventilation and light transmission conditions in the crown, and increase the yield. After sprouting, the sparse parts often sprout more developing branches, and pruning should be carried out in time, such as sprouting, thinning, coring and so on, so as to turn the disordered tree into a tree structure with orderly branches, ventilation and light, and reasonable area.