1. Autumn pruning: The autumn pruning of apple trees is essential to improve the quality of the fruit of the following year and to ensure high and stable yields. The autumnal pruning of apple trees mainly adopts technical measures such as branching, thinning and light cutting. (1) Pulling branches to ease. The pull branches are pulled to the desired angle for branches that are not suitable for the angle, and pull branches are generally performed before the autumnal equinox. The branching angle generally requires the main branch to be drawn at 70 degrees to 80 degrees, and the auxiliary branches and temporary branches are drawn at 90 degrees to 100 degrees. The specific situation depends on the varieties, land conditions, and moderate tree vigor. (2) Lightning and light transmission. Sparse inner branches, backless branches, erect branches and competing branches, and weak branches. In this period, cutting and cutting are not easy to prevent stripping, which avoids the phenomenon that the more pruning and stripping in winter are more frequent. (3) Lightly cut flowers. The use of light shears on young shoots of new shoots or wearing short caps at the blind spot at the junction of the spring and autumn shoots can reduce nutrient consumption, contribute to nutrient accumulation, and promote flowering effects. 2. Autumn basal fertilization: Generally, it can be carried out in early September. At this time, the root of fertigation cutting can heal quickly and it can germinate a large number of roots to absorb and increase the absorption rate of fertilizer. Fertilizers are mainly organic fertilizers, with a small amount of inorganic fertilizers. The general young plant strains apply 50~100 kg of high-quality mixed fertilizer, 1~1.5 kg of special fertilizer for fruit trees, 150~300 kg of high-quality soil-fertilizers for mature trees and 2~4 kg of fruit-specific fertilizers. Jin Fei. Autumn basal fertilization should not be too deep, not more than 50 centimeters is appropriate, the young fruit tree can be used ditch cast method, Sheng fruit period tree should adopt the whole garden spreading method. If there is a deficiency, the trace element should be mixed into the organic fertilizer when applying base fertilizer. 3. Qingyuan deep-turning tree tray: After falling leaves in autumn, clean up the dead branches, leaves, weeds, etc. in the orchard, and burn them in a concentrated manner to eliminate the overwhelming insect sources and bacterial sources. It is advisable to deepen the tree tray before the peak of the root growth in autumn. Deeply turning the tree plate at this time, the wound is easy to heal and grow fast, can increase the amount of deep roots, water retention, increase the temperature, but also to eliminate part of the overwintering pests.
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