The main purpose of pear tree winter shear is to cultivate tree shape, adjust the crown structure, cultivate fruiting branches, adjust the amount of flower buds, adjust the quality and number of shoots, promote air and light transmission, update the rejuvenation crown, continue aging, achieve growth, balance results, and High yield laid the foundation.

Sapling pruning: Generally take a long-branch light-shear release, flatten the upright Zhuangzhi, retain the short and mid-stem, use the extracted shoots as much as possible, and expand the canopy. Except for sparse shearing of the dense branches, sparse shearing is generally not performed. The main branches and sub-main branches of the dense branches, thin branches, pests and branches and all disturbing the tree cut off. Long-branches and short-cut cultures are the result of branches; medium and short branches are those with strong shears and weak ones are placed slowly; small-angle branches are supported, pulled, and suspended to expand branching angles, ease the top growth advantage, and promote the early formation of flower buds. .

Fruit pruning: For plants with vigorous tree vigor, prolong vigorous growth, remove more slashes, cut short, cut branches, leave branching branches, leave flower buds, and keep fruit trees to make them tend to moderate tree vigor. For heavier plants, use heavier pruning methods to cut the strong branches and remove weak branches; take short cuts for some medium and short fruit branches, remove some of the flower buds, change the result into vegetative branches, and increase nutrition. Branch ratio; For stabilizing plants, the emphasis is on the trimming of the resulting branches; for pears with a large amount of flowers, cut off the inferior flower buds, shorten the flowering branches, and adjust the proportion of the resulting branches and vegetative branches.

Aging pruning: different amounts of pruning according to the degree of aging. Retract the pendulous perennial branches, and select the good back branches for the retracted parts. When the head sticks should grow strong buds, make them grow upwards, cut off some flower buds, and remove weak branches. Try to make use of leggy branches to fill incomplete canopies, restore vigor, and regain high yields. Severely aged trees saw the canopy, leaving only the main lateral branch skeleton, promoting the germination of the bud, recultivating the canopy, and restoring production. For the transformation of aging trees, it is necessary to strengthen the management of fertilizer and water and pest control.

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