Rotating 4 to 5 branches at the base, causing the tree body to jam, causing the center of the tree to be dry and weak, affecting the growth of the tree. Solution: Dredging one lower branch of the whorled branch, retracting one, and then leveling the remaining two to three branches.
Second, it is too high
The fixed height of the apple tree is more than 120 cm. The lower part of the trunk is bare. The growth of the tree body is weak, and the formation is late, which is not conducive to early high yield. Solution: Carve buds on the appropriate parts of the trunk, or perform abdomen grafting on the appropriate parts.
Third, set too low
The fixed height of the apple tree is less than 60 cm. The large branches in the lower part of the trunk are many and strong, but the new shoots in the lower position grow very long. The center stem of the tree body is not obvious. The quality of the ground sticks is poor, which affects the formation of the crown. The solution: Short cut the upper branches of the tree to increase the amount of branches; ring peel the lower large branches, and then dredge them year by year to enhance the growth potential of the upper part of the fruit tree.
Fourth, the trim is too heavy
Due to the clutter of the tree body, after trimming and pruning, most of the useless branches were removed, resulting in excessive pruning, the main branch of the trunk was scarred, the tree was weak, and the growth of the leading branch was weak, which affected the growth of the tree. Solution: Useless large branches on the trunk can be partially removed, retracted again, and the "three consecutive saws" method can be used to reduce a portion. For the branches on the back of the main branch, there is no space to remove them. Heavy cut flattened.
Five, spindle-shaped tree body, too many branches
Some fruit farmers in the production of the spindle-shaped plastic body are flattened in addition to thinning branches, thinning out useless branches, and the other parts are completely flattened, resulting in overgrown branches on the back, slowing the flattening of branches, which affects the expansion of the crown. This method is incorrect. of. Solution: The length of the elongated branch in the lower part of the tree is more than 100 cm, and the length of the elongated branch in the upper part is 50 to 60 cm. The branches are stretched to reach the length of the branch; those that do not reach the length of the branch are full The bud is short and can be allowed to continue freely.
6. Attach importance to winter scissors and despise summer scissors
Winter shears have a lot of sparse branches and cuts, and the amount of pruning is large. After entering the growing season, there is a lot of buds near the shears. The back of the branch is long and the branching work can not keep up. The vicious cycle of clearing the bores not only wastes a lot of nutrients on the tree body, but also delays the results. The fruit quality is poor, which affects economic benefits. Solution: When cutting trees in winter, moderate thinning. Carving buds of the lacking parts before budding; erasing useless buds at the cutting mouth in time in mid-late April; ring-stripping of the stronger auxiliary cultivation branches in late May; softening the branches to adjust the angle from July to August; autumn The backbone branches with small angles open at the base, thinning upright branches, long branches and competing branches.
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