First of all, we must master the appropriate pruning period.
Pruning jujube trees in late winter is easy to be damaged by freezing, and sometimes it is prone to slight peeling; Pruning in spring is too late, which leads to great loss of nutrients, enhanced germination ability and decreased branching rate. Therefore, it is best to prune jujube trees in late March and early April, after the soil is thawed and before germination.
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Because of different planting forms.
Take different technical methods. If the stems are fixed, the stems of close-planted jujube orchards should be shorter, generally 40-60 cm, and the height of sparse jujube orchards should be 70- 100 cm. Another example is plastic surgery, which makes high-density jujube orchards into a "ya" shape or a spindle shape; In the dense jujube orchard, open-heart and sparse-layer jujube orchards are selected. The sparse jujube garden selects the trunk to be sparse and layered.
Third, because of the different ages of trees, different technologies should be adopted.
. For 1-2-year-old young trees, dry fixation measures are mainly adopted. When drying, the jujube head is cut off at the strong bud, and the lower 3-4 secondary branches are cut off. For 2-3-year-old young trees, the main task is shaping, and the corresponding shapes are selected according to different planting forms and varieties. Taking nutrition adjustment as the main content, measures such as adjusting branch position, cultivating branch group and improving light were taken to promote the transformation from vegetative growth to reproductive growth of jujube trees at the initial fruit stage. For jujube trees in full fruit period, pruning mainly adopts measures of balancing tree vigor and improving light, so as to achieve the purpose of stable production, nursed back to health and high quality year after year. For jujube trees that have entered the aging stage, the main measure is to take retraction and renewal to rejuvenate as soon as possible and prolong the economic life.