Pre-control method
Results In the early period of the early period of control, at the beginning of the results, when the lower branches were aligned and the height of the trees was about 2 meters, the leaders of the center should be “swinged once†each year to control their growth. That is, when cutting in winter, the original head with stronger growing vigor should be removed, and another oblique branch with medium growth potential should be selected as the center branch; when the next winter cutting, another oblique branch with different direction should be selected as the center branch to make the center dry. Slightly curved upwards. This not only eases the forces that the center grows upwards, but also effectively controls the height, and it is also conducive to the provision of upper branches and permanent branching, preventing the strong and weak in the early stages.
Pressure crown method
In the middle of the full fruit period, the fruit is pressed to the full fruit stage. When the tree is as high as about 3.5 meters, before the germination in early spring, the center of the Red Fuji apple tree head is pulled to the side with a rope, and the angle is about 85 degrees. It is slightly horizontal. After germination, the back buds are promptly wiped out. If the growing branches are strong, they can be used in conjunction with girdling. Ring cutting and other means, so that vegetative growth as soon as possible to reproductive growth and transformation, in order to achieve fruit crown pressure. The amount of fruit left at the top of the center depends on the strength of its growth, while the strong ones stay longer, and the weak ones stay less or do not stay. Generally, the ratio of fruit to fruit is more appropriate than 7 to 10:1, and each inflorescence stays as a single fruit. the Lord.
Change head method
After the end of the last fall, the top of the central stem after falling heads and changing the head of the Farapine will turn into a dangling and weak branch for several consecutive years. At this time, the head can be dropped during the winter cut, that is, the original center will be sparse. To lose or retract, in the last year of the last fall, a purposeful alternative long branch or subsidiary branch is cultivated to replace the original head, and the steps of “pressing the crown with the crown of the head and changing head†are repeated several times. Keep the canopy at a certain height, avoiding the emergence of the center and the umbrella.
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