Plastic pruning is an indispensable technical measure in pear tree planting management, which is irreplaceable by other technical measures, but it is definitely not omnipotent and unique. Be sure to treat it correctly and use it carefully. If the role of pruning is emphasized unilaterally, other technical measures are ignored, or other technical measures are opposed to pruning, trees are overemphasized and pruned for pruning's sake. In other words, if you don't pay attention to pruning, you can't give full play to the role of plastic branches and get early fruit, high quality, high yield and high efficiency. On the contrary, it will lead to bad consequences such as late fruiting of young trees, low yield of big trees, poor quality and short economic life. Pears with upright growth habits are very important. Usually, the branches are pulled, braced and hung around July, and adjusted to the angle required for raising branches. The pruning of the main branches must be carried out in time, and the season cannot be delayed. Otherwise, the tree will be adjusted too much in the future and the tree will be irregular.
Usually in the stock price, side branches, long branches. Grinding the spiral ring for 2-3 times. When peeling, the peeling width of annual rings should be strictly controlled, and xylem should not be damaged. The width should be within110 of the diameter of eggplant, and the maximum width should not exceed 1.0 cm. May-July, too late, is not conducive to wound healing. After peeling, it can be wrapped in plastic film to heal it. It is suggested that girdling is very harmful to the potential of trees. The use of girdling and foliar fertilizer has no side effects on trees and promotes flowering and fruiting.
In the process of pruning pear trees, no matter which pruning method is adopted, only by paying attention to its comprehensive reaction can we achieve the expected goal. Before pruning a pear, we should first look at the age, intensity and flower amount of the tree and decide what pruning method to adopt. Generally speaking, young trees, aqua regia and trees with few buds should be pruned lightly, while holy spirit trees and medicinal trees, especially trees with many flowers, should be pruned appropriately. Abdominal black disease, black spot disease, Yin Wen's disease, pear trees, pear spider mites and miscellaneous trees are the main diseases and insect pests that cause early defoliation, and one-time harvesting is also one of the reasons for early defoliation. Early defoliation is the main reason for the second flowering of pear. In order to prevent secondary flowering, attention should be paid to fruit picking. Fertilizers should be replenished in time after harvest. It is necessary to strengthen pest control. Irrigation and wooden tray mulching should be strengthened in dry season.