Winter apple tree pruning measures

Wanghui Village, Yanghong Town, Qianxian County, Shaanxi Province: How to operate apple tree pruning in winter? Can experts give guidance and provide detailed pruning measures?

Expert suggestion Han Mingyu, professor at the College of Horticulture, Northwest A&F University: In the apple tree pruning winter season, the selection of the tree pattern should be targeted, mainly according to lifting, falling head, removing too many large branches, and removing large lateral branches on large branches. Such as pruning principle, scientific and reasonable winter pruning work.

Joe tree pruning tree pattern: free spindle

Annual fruit tree pruning For annual branches, leave a short cut every 15 to 20 centimeters upward from the trunk 80 centimeters, and remove all remaining branches. The golden tree was cut at half of its buds and the weak trees were cut at full buds. Conditional fruit growers can use a hacksaw to horizontally pull a saw at 0.5 cm above their buds in the spring of the following year, deep to the xylem, to sprout buds.

Two-year fruit tree pruning Select one branch every 15 to 20 centimeters from the trunk 80 centimeters upwards, branches and branches inserted empty, and the distance between the main branches above and below the same side is more than 60 centimeters. The central leaders cut the half full shoots in the middle of their year, and the competing branches on the stems of the stems and stems of the main stem and auxiliary branches were all removed, and the uniaxial extension was maintained.

The larger lateral branches and dorsal branches grown on the main branch of the 3-5-year-old pruning fruit tree were all removed to cultivate single-axis long loose-type branch groups. The new branch issued by the central leadership has left one branch every 15 to 20 centimeters, and the remaining branches are generally removed. The competing branches on the heads of stems in the trunk, main branches, and auxiliary branches were all removed and the uniaxial extension was maintained. In the case of missing shoots, replenish the shoots before budding in the spring of next year.

In the period of fruit tree pruning for more than 5 years, the central leadership has a large number of main stems, which can be lightly cut. However, attention must be paid to solving the phenomenon of light and baldness in the internal hernia. Excessive secondary rearing branches can be eliminated, and the side branches can be retracted. Transform into a small result branch to improve the ability to produce results. In the periphery of the canopy and the dense branches in the middle and upper part, appropriate dredging was carried out.

Dwarf tree pruning tree pattern: high spindle

For the one-year and two-year-old fruit trees, select branches suitable for branch length (1:3) and branch spacing (15-20 centimeters), slowly release middle branchlets, and remove all branches from the central stem, in the second year In the spring, buds ranging from 10 to 20 cm in diameter are selected to induce new shoots.

For fruit trees with a too low dry height, the primary branch of the first layer is susceptible to contact with the ground after the result, which makes the fruit difficult to color. Therefore, when pruning, the main branch of the first layer should be controlled more than 50-60 cm above the ground. When the tree is under high height, the branches should be raised as much as possible, and the lower redundant branches and skirts should be removed. After several years of pruning, the tree shape can be improved and restored. It is necessary to pay attention to the updating of some lateral branches to promote vigorous tree growth.

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