First, pruning time The pruning season of fruit trees can be divided into three periods: spring pruning, summer pruning and autumn pruning. Second, pruning methods and measures The methods and measures often used for pruning in the growing season are: The tips of the new shoots have been picked up, scratched, cut, pulled branches and so on. Strong control and promotion of flower bud differentiation have twisted shoots, branches, twigs, branches, branches and girdling. The conservation of nutrients and the improvement of fruit setting rate include sparse buds, sparse flowering, sparse flowering, fruit thinning and girdling. Open angles, air and light propped branches, pull branches, hanging branches, fallen branches, pressed branches, thin branches and so on. Third, pruning tasks and purposes 1, summer trim (1) Thinning of fruit. For tree species or varieties with high fruit setting rate or fruit weight, the fruit thinning should be carried out as early as 2 to 3 weeks after flowering, which has the effect of preventing premature aging of tree vigor and improving fruit quality. (2) Thinning. Weed out excess, buddy, and pests. After the thinning, the spot under the canopy (sunshine) is evenly distributed on the ground. The area of ​​light spots is preferably 10% to 15% of the total projected area of ​​the whole tree. (3) girdling. Large auxiliary branches or trunks, main lateral branches, which are excessively vigorous. Perform girdling treatment to promote flower bud differentiation and increase fruit setting rate. The width of girdling is controlled to be 1/10 of the thickness of the peeled branches, otherwise it is not easy to heal. (4) twist the tip, take the branch, litchi, all branches, circle branches. For legible branches with useful value on various levels or on upright shoots that are more prosperous, promptly carry out twisting, branching, twigs, branches, and branches to control the growth and promote flower bud differentiation. 2, autumn trim Same as the summer shearing requirements, continue to sparse dense, leggy, and diseased shoots and sprouts so that the canopy has good ventilation and light transmission. This ensures that the fruit can see the light directly, and that all kinds of branches in the internal canopy are adequately visible. Flower buds. Fourth, trim objects and targets Tree species, species, age, tree vigor, etc. Trimming objects and targets are also different. The main purpose of pruning trees and trees with vigorous tree branches during the growing season is to control leggy and ensure the ventilation of the canopy. Apples mainly use twisted shoots and pull-branches. Grapes are dominated by controlled shoots, while pomegranates are developed around the goal of removing sprouts, increasing fruit setting rate and promoting flower bud differentiation. The main objective of pruning during the growth season of young tree is to use the auxiliary shoots to expand the crown to form the branches at various levels as early as possible so as to prepare for the early results: the results of the tree around the high-yield, stable production, high quality and tree vigor doctrine robust, airy and translucent make a fuss : The senescence tree is to rejuvenate, restore the tree potential, and cultivate new results. Components Of Infusion Set
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