1, peach tree pruning at seedling stage. The trunk of peach trees grows very fast at seedling stage, and the trunk of peach trees should not be too high, otherwise it is not conducive to the management of peach trees in the future. When pruning peach saplings, the trunk height of peach trees is mainly controlled by coring and pruning, which promotes multi-lateral branches of peach saplings. Repeated coring and pruning are beneficial to peach trees to bear more fruits.
2. Pruning of peach trees in growth period, the effect of pruning in growth period is very obvious. Pruning can adjust the growth of new shoots, improve light, increase photosynthetic capacity, reduce ineffective growth, save nutrients by pinching or wiping buds, which is more conducive to balancing tree potential. Pruning can adjust the angle of main branches more reasonably, improve the plumpness of flower buds, and promote the differentiation and plumpness of flower buds at the base of new shoots, thus effectively improving the yield and quality of peaches. Pruning techniques are commonly used in core removal, germination, tip twisting and branch pulling.
All the buds in the inner cavity of peach trees should be erased in time, and only the tender branches in suitable positions should be selected and cultivated into fruiting branches, which can improve the illumination in the inner cavity and save nutrients. It is more beneficial to mold peach trees by removing the heart and cultivate fruiting branches than to let new shoots grow. At the top of the new shoot of peach tree, the tender shoot of about 5 cm at the top can be cut off with scissors to complete the coring. The new shoots to be reserved as fruiting branches are too long, which can be turned into ideal fruiting branches by twisting the shoots, and the fruiting branches can be effectively increased by removing the core first and then twisting the shoots. In order to enrich the new branches at the lower part, they are usually pruned after the new branches stop growing. Early coring is easy to form multiple new buds. Generally speaking, two strong branches should be kept for pruning, and the rest should be thinned.
3. Pruning peach trees after flowering should generally prune dead buds after flowering to reduce the consumption of excessive nutrients by useless fruits. Pruning lightly in this period is more beneficial to fruit trees. Some pruning was too light last time, leaving too many fruiting branches, so it is necessary to export the flower branches appropriately to save nutrients. Some fruit trees will be harmed by bad weather such as late spring cold and hail in spring, and timely thinning of injured fruit branches will help to restore tree vigor after the disaster, thus improving yield and quality.
4, peach tree dormancy pruning, this pruning is the most ruthless pruning of peach tree life, peach tree enters dormancy at this time, and grows slowly. Prune branches damaged by pests and diseases, branches that need to be retracted, long white branches, etc. It is more conducive to bearing more high-quality fruits in the coming year. Pruning time is generally arranged from defoliation to germination of peach trees, and the trunk should be painted white before and after pruning to improve the cold resistance of peach trees.