The peach trees in the northern variety group are relatively upright, and the crown is not easy to open. The top edge is obvious, and the top is strong and the bottom is weak. The lower branches are easy to age and die, resulting in baldness, causing the fruiting parts to move outward.

After entering the fruiting period, short fruiting branches will mainly bear fruit. In the early fruiting period, well-developed secondary shoots can also form short fruiting branches. According to the growth and fruiting habits of northern peach trees, the pruning characteristics are as follows:

(1) When pruning young trees, the main trunk should be short and the main branches should be few. Because of its vigorous growth, the abundant auxiliary shoots can be used as backbone extension branches to increase the opening angle of the main and side branches, so that the backbone branches can be bent and extended, and large and medium-sized fruiting branch groups can be cultivated at the turning points.

(2) When pruning main and side branches, in addition to paying attention to the opening angle, attention should also be paid to thinning out competing branches on the backbone branches and vigorous branches at the tips. For extended branches, it is advisable to cut them gently and let them grow longer. Use the method of suppressing the front and promoting the back to prevent the back from weakening. When the back is weak, then shrink the front and promote the strength of the back.

(3) Northern varieties mainly produce short fruiting branches and bouquet-shaped fruiting branches. Therefore, it is better to cultivate large and medium-sized fruit-bearing branches, so the amount of pruning should be appropriate and light. You can use the method of first opening and then shrinking to induce short branches and avoid heavy pruning stimulation, so as not to promote vigorous growth.

(4) When cultivating large or medium-sized fruiting branch groups, weak branches should take the lead. This will help slow down the growth of the branch group and promote the growth of more short branches and bouquet-shaped fruit branches. When thinning out vigorous branches, avoid continuous thinning or large-scale thinning at one time to avoid weakening the tree's vigor due to excessive wounds.

(5) The strong branches should be long, and the secondary shoots can be used to bear fruit. After more short fruit branches are formed, they can be appropriately pruned. Medium and long fruit branches should be lightly shorted; weak short fruit branches and bouquet-shaped fruit branches should be thinned out in an appropriate amount at a timely manner, and should not be short cut to maintain and rejuvenate the tree's growth and fruiting ability.

(6) The flower buds of northern peach trees are more likely to die during overwintering, especially the flower buds on fruit-bearing branches. Therefore, it is necessary to leave some more flower buds appropriately, or to delay the pruning time appropriately. After germination in spring, the dead and alive flower buds can be identified according to the color and shape of the buds, and then pruned to ensure that sufficient flower buds are left.

(7) Make full use of summer pruning. During the rapid growth period of new shoots, use the opening angle of the secondary shoots; when upright strong branches emerge from the backs of weak branches in the inner chamber, they should be removed in time; competitive branches can be continuously topping to control their excessive vegetative growth and keep the inside of the crown in good condition Good ventilation and light transmission conditions; slow down the decline of inner branch branches, prevent the lower part of the backbone branches from being bare, and delay the outward movement of the fruiting parts.