The main purpose of pruning is to adjust the tree structure, cultivate high-yield and stable-yielding trees; let light and breathable, reduce the occurrence of pests and diseases; renew and rejuvenate, promote strong autumn shoots, and lay a good foundation for high yield in the coming year.
Young tree
1. The seedlings are set to dry, and the dry height is 30-50 cm.
2. If the main stem is more than 30 cm above the ground, select 3-5 shoots with strong growth and even distribution in different directions as the main branch; branches less than 30 cm can keep the branches, and short cut at 15 cm. .
3. Keep buds. Each main branch leaves only one shoot for the first time, to promote its elongation, and when the main branch reaches 25-30 cm, top off the core to make it shoot again.
4. If new sprouts sprout on the main stem after drying, it should be wiped off in time; if sprouts on the rootstock should be wiped off.
5. For trees that do not arrange fruit in the second year, spray 920 after the autumn shoots are mature to inhibit flower bud differentiation, prevent flower bud formation, reduce nutrient consumption, and promote rapid crown formation.
Result tree
1. Spring cut: dense branches, drooping branches, long branches, diseased branches.
2. Summer cut: April-June summer shoots (control, wipe, kill shoots).
3. Autumn cut: promote autumn shoots, short cut.
4. Enlarge the canopy with measures such as supporting, pulling, wiping off the buds, and short cutting.
5. "Open the skylight" and "open the door", through thinning, short cutting, topping and other methods, delete the dense branch group, cultivate a ventilated and light tree structure; after the fruit is picked, cut off the dead branches, diseased branches, and shrink the weak branch.
Old tree
1. Severe retraction, mainly sparse and delete, promote new shoots and renew the canopy. Aged trees mainly adopt methods such as retraction and short cut to promote new shoots, renew the tree body and prolong the fruiting period. Retraction means cutting off the tip of the old branches. The heavier the retraction, the stronger the germination of the new branches.
2. Cut off diseased and pest branches, dead branches, weak branches, and excessively long branches.
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