(1) Promote fruit and early harvest: Pruning can promote the early formation, early fruiting and high yield of young trees, and recover the investment in garden construction early.
(2) Cultivation of skeleton and improvement of resistance: plastic pruning can cultivate the skeleton structure of trees, enhance the load capacity, improve the development quality of branches, buds, leaves, fruits and other organs, enhance the adaptability of trees to the environment, and improve the ability to resist natural disasters and pests.
(3) Adjusting tree potential to ensure high yield: for trees with large fruit, pruning can balance tree potential in time, straighten out the subordinate relationship of skeleton structure, and adjust the reasonable proportion of growth and fruit; Improve the ventilation and light transmission conditions of the crown, reduce ineffective consumption and increase nutrient accumulation; Maintain the long-term high-quality and high-yield state of trees.
(4) Renewing branches and delaying senility: The drooping and weak backbone branches and fruiting branches can be renewed in time by pruning the aged trees, so as to maintain the high quality and high yield of the trees and prolong the fruiting life.
(5) Controlling the tree body, by controlling the crown size, it is convenient for close planting and tree body management, increasing yield, reducing cost and improving orchard production efficiency.