1. Pruning young fruit trees mainly adopts the methods of "wiping summer shoots, cultivating autumn shoots, restraining winter shoots and transforming long branches" to balance the relationship between vegetative growth and reproductive growth. After the summer shoots are pulled out, they can be pulled out when they grow to 2 cm ~ 3 cm, once every 34 days. It was not until autumn that the release time of new shoots was determined according to the strength of trees and the number of fruits.

If there are many trees, the weak shoot early, but if there are few trees, the strong shoot late. For the elderly, the fruit tree can be released around midsummer. The opposite winter buds can be cut off from the base after 65438+February, or when there are no flowers in the next spring. Long branches drawn from the trunk or main branch should be erased in time. However, if the crown is vacant, the slender branches extracted from the inner branches or main branches of the crown can be picked up or shortened to promote the germination of new branches to make up for the vacancy.

2. Pruning the fruiting tree in the full fruit period After the citrus is transferred to the full fruit period, the nutritional growth and reproductive growth reach a relative balance. At this time, according to the characteristics of this period, thinning or short pruning should be carried out to enhance the ventilation and light of the crown, update the aging branch order, increase the inner branches, realize three-dimensional fruit and prolong the fruiting period. Generally, summer shearing and winter shearing are carried out.

Summer pruning: it is mainly to cut off useless branches such as fallen flowers and fruit branches, and promote the emergence of strong late summer branches or autumn shoots as future fruiting mother branches. Pruning in summer is usually carried out 15 ~ 20 days before the release of autumn shoots, with thinning and cutting as the main methods, supplemented by short cutting. Branches with a thickness of 0.5 cm ~ 1 cm around the middle and upper part of the tree can be drained to promote autumn shoots; Vegetables prune fruitless cross-closed branches between plants. Don't cut down trees that have just been put into production in summer.

Pruning in winter: 15 ~ 20 days after fruit picking, but before spring shoot bolling. Cut off the dense horizontal branches, dead branches, pest branches, broom branches, cone branches and declining branches in the middle and upper part of the crown, and leave 6 cm ~ 10 cm branches to promote the germination of new branches. The thickness of the incision is 0.8 cm ~ 1.2 cm. For some weak fruiting branches and fruiting mother branches, "one fruit and two cuts" can be implemented in early harvest, and the weak branches are cut off from the base to reduce the number of invalid branches.