The densely planted jujube garden is suitable for the use of small-sized trees with good light transmittance, such as free-spindle-shaped, happy-shaped, "Y"-shaped, hedge-shaped, and fan-shaped. Among them, the free-spindle shape is easy to be shaped and is suitable for promotion. Taking the densely planted jujube garden with free spindle shaping as an example, the shaping and trimming steps are as follows:
The first step: set dry set dry height is 80 cm. Remove all secondary branches, and 3 to 4 date heads can be drawn in that year.
The second step: pruning The second year of pruning cuts the trunk extension and other main branches to promote extension growth. If jujube heads are drawn from other parts, they will be cultivated into fruiting branches by topping. In the third year, the main branches and fruiting branches are cultivated in the second year, and a certain amount of fruits are left to ease the growth momentum. In the fourth year, the trunk of the pruning grows to 2 to 2.5 meters, and the head is happy. The pruning method of the winter shears no longer adopts the pruning of the head and the short cut, and the back is shortened.
During the growing season, the main buds germinated at the base of the secondary branches under the shears should be removed in time. The focus of this year's work was on the cultivation of fruiting branches, and the tree body changed from growth-based to fruit-based.
The third step: the cultivation of the main branch of the result branch group extends the date head, leaving about 40 cm for topping, and adjusts the main branch angle in time. Generally, the main branch angle is required to be between 70 and 90 degrees, the lower part angle is easy to increase, and the upper part is easy to be small; Or germinate jujube heads on the main branches to cultivate a small fruiting branch group through heavy topping.
Step 4: Maintain a good tree structure. After four or five years of plastic pruning, the tree can basically reach the ideal tree shape. In future pruning, pay attention to adjust the branching between the main branches to keep the center dry Dominant position.
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