Fruit tree pruning is a unique technical measure in fruit tree cultivation management, and it is also an irreplaceable complex and meticulous work. At the same time, it is closely related to the growth and fruiting habits of tree species and varieties, tree age, different site conditions, comprehensive management level of soil, fertilizer and water, and timely comprehensive prevention and control of pests and diseases. Only by strengthening the comprehensive management of soil, fertilizer and water and the comprehensive prevention and control of pests and diseases can the plastic pruning work achieve obvious yield-increasing effects.

Appropriate light cutting of young fruit trees is conducive to timely formation, early fruiting and early high yield, but only under the premise of suitable ecological conditions, thick orchard soil layer, high level of water and fertilizer management, more branches and leaves of trees and sufficient nutrient accumulation, the effect of appropriate light cutting on yield increase is more obvious. On the other hand, if the above conditions are not met, no matter how heavy and meticulous pruning is, it will be difficult to bear fruit, let alone early high yield.

After entering the full fruit stage, the main factor affecting the yield and quality of big trees is the amount of nutrients stored in the trees. The storage of nutrients is related to the adequacy of fertilizer and water supply and the suitability of branches and leaves. Therefore, when pruning technology is used to adjust the appropriate amount of branches and leaves, it is also necessary to increase fertilization moisture in time to improve the nutritional level of trees, so as to ensure high quality and high yield. But if there is enough fertilizer and water, too many branches and leaves, and there is no pruning adjustment, it is difficult to form flower buds, even flowers are difficult to bear fruit. Therefore, the pruning adjustment function of mature trees can not be ignored. For adult trees with more fruits, in addition to increasing fertilization water, they should be adjusted by pruning, thinning flowers and fruits. In the process of pruning adjustment, we should pay attention to keep the total number of branches of the whole tree relatively stable, and the pruning amount should not be too light or too heavy, so as to narrow the range of variable yield, ensure high quality and high yield in successive years, and achieve high economic benefits, and also prevent and overcome the phenomenon of bearing fruit in different years.

The vegetative growth of aging fruit trees is gradually weakening, the crown is shrinking year by year, and the yield is also decreasing year by year. In addition to paying attention to fertilizer and water management, the amount of pruning should be appropriately increased to maintain vigorous growth and stable yield, and attention should be paid to updating pruning.