Fruit tree winter cut wrong
Some fruit farmers have made some mistakes in the winter shears of apple trees, which leaves a problem for fruit tree production. Specific performance and correction methods are as follows for reference. Too many branches are too messy. Some fruit farmers think that the more branches they have, the better. They do not control and reform the branches in time, and let them grow for a long time. The specific manifestations are as follows: the trees are disorderly, the primary and secondary are not separated, the verticillate branches are severely stuck, the large branches are severely crossed, and the back is bare. Causes weak central weakness or severe skew.
Correction method: According to the planting density, clear the tree shape again according to the planting density during winter shearing, and then determine the main branch according to the requirements of the tree shape. After adjusting the angle and orientation of the main branch, handle the branches other than the main branch. Select the necessary branches on the tree, and thin the whip branches with few branches, few flower buds, and uniaxial extension every year. The fruiting branches that do not affect the growth of the main branch group are taken corresponding measures and used temporarily for fruiting, and then are gradually dredged or retracted into branch groups in stages and batches.
The ultra-high and large tree body is specifically manifested in the low-density orchards that fail to fall down in time after being reshaped, and the crown is out of control, super tall and super large. After such a fruit tree enters the full fruit period, the interplantation is closed and closed, and the inner cavity and the lower layer rarely see light, forming the crown result, and the peripheral result, which becomes the "empty tree" with "no fruit in full fruit".
Correction method: thin out large branches other than 1 or 2 main branches in the big year, and remove large branches with severe shading on the upper part, and retract for other branch groups; choose a suitable part to be happy and pay attention to the cultivation of compact results Branch group; through retraction and dredging, the problem of light in the inner chamber is solved, and the result part is stabilized in the middle of the crown.
The unreasonable coordination of the branch group is specifically manifested by the uniaxial branch group formed by continuous slow release, which results in loose branch groups, poor continuous fruiting ability, and weak tree body. This will cause the apple tree production to be unstable, the rise and fall will be large, and the size will be obvious.
Correction method: The fruiting branch group is cultivated in a planned way. Pruning not only depends on the output of next year, but also prepares for the output of the third and fourth years. Renewing the second and third branches of the fruit shoot's apices and the winter shearing techniques such as changing from large to small branches of successive fruit groups can also solve this problem well.
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