The old jujube tree should be renewed. The long, thin branches should be rejuvenated and rejuvenated; dry and thin branches that have no use value should be removed; old wounds or broken piles of broken branches should be trimmed and painted. Protective agent. Specific trimming varies from tree to tree.
First, the general branch has severe baldness, and there are no secondary backbone branches available in the middle and lower parts. Two main branches are selected according to the sparse layer shape or 4 to 5 main branches are selected according to the round head shape. Each retraction is 2/3 to 1/2. If there are no branches under the saw mouth, choose to leave one upright or slanted date crucible, and choose a suitable direction at the base of the jujube stock at the short cut, as cut out branches.
Second, the old branch with less severe baldness, it is best to retain the main branches and branches of the two branches, and then according to the law on the main side of the retraction.
Third, the large branches and the main trunk are damaged and cannot be used, but the large branches with good roots can be sawed off from the ground to make it sprout. It can grow to more than 1.5 meters that year, faster than replanting saplings. In addition to eradicating it in summer, one or two buds are selected to be selected to accelerate the healing of wounds and protect the soil to prevent breakage or damage.
When the old trees are renewed, no matter which method is adopted, the management of soil, fertilizer and water must be strengthened in order to achieve the purpose of updating and rejuvenating.
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