In order to allow Apple to achieve high yields and stable production as soon as possible, most of the current fruit growers are planted in trunk form.
First, the tree structure The trunk shape, also known as cylindrical, suitable for high density cultivation, row spacing of about 3 meters, plant spacing of 1.5-2 meters, more than 111-148 per mu, suitable for short-stem type. Now some use dwarfing anvil - short branch type combination, the density reaches 200 above. The trunk-shaped tree structure is simple, and the pruning and management are relatively easy. The ventilation and light transmission result in early results, stable yield, and high quality. In this tree, there is only one backbone branch in the whole tree. On the backbone branch, there are 30-50 branches and branches. The length of the branch group depends on the planting density, which is generally 15-120 cm and 30-40 cm. The number is more. The diameter of the crown is 1-2 meters, and the lower branch is longer than the upper branch. The opening angle of the branch group is 90-120 degrees, and the branches and branches of the whole tree are full and not dense, and the buds are full. If they are well managed, there are almost no new shoots. Because of good light, the red fruit rate is higher.
Second, shaping
1. If it is a strong seedling, if it does not dry in the first year, it will be budded by buds or treated with budding bud No. 2 buds at a distance of more than 40 cm from the ground to 3-4 buds at the top. In this way, due to the large amount of branches and nutrient dispersion, there are few prosperous branches. Such as weak seedlings can be set at 90-100 cm.
2, the summer management A topping, in mid-May, when the lateral shoots grow to 15 cm or more, on the strong, remove the tender tip 1 cm, while removing the top 2-4 leaves, leaving the petiole. B. When the branches are half-woody, hold the branches in the same section with both hands and twist them 90-180 degrees horizontally. For long branches, turn them once every 3-4 times. C. Take the branch and take the branches in the upright Changwang branch in the fall, so that the branches are mature and the buds are full.
Third, if the winter cut is not carved buds (point buds), picking up the heart and take the branches and other work, only the new shoot levelers, winter shear should be removed from the lateral branches of the year, the main extension of the branches in the full bud at the short cut, enhanced The influence of the Chinese Communists increased branches and dryness ratio.
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