In spring, with the temperature rising, some buds will sprout on chestnut trees, such as fruiting branches or male flower branches. Some buds will sprout at the mouth of the trimmed scissors; There will be some buds on the newly grafted trees; The newly planted chestnut seedlings will send out some buds. Some of these buds are what we want and some are redundant. Excess buds should be erased in time to avoid waste of nutrition, and nutrition should be concentrated on the remaining buds. This is what we call wiping buds. What kind of buds should be erased?

1. For the buds growing on the newly planted chestnut seedlings,

The buds below 40cm above the ground need to be smoothed to facilitate the smooth part of grafting in the future.

2. In order to sprout on the blade.

After cutting short the annual, biennial and triennial branches, the young buds of chestnut trees are used to cultivate preparatory branches. Generally, we need to keep two and erase the extra ones. If there is space, you can leave one or two buds at the big incision, and all the buds at the lower part without space can be wiped off.

3. The bud on the mother branch is the fruit of the weak tree.

Results Several full buds at the front end of the mother branch germinated and grew into fruiting branches, while the lower buds germinated and grew into male flower branches. The number of male flowers on chestnut trees is far more than that of female flowers, and a large number of male flowers will waste nutrition. After germination in spring, the number of female flowers is increased and the yield is improved by smearing buds on the lower part of the bearing mother branches of weak trees.

4. Because the buds germinate after cutting off the branches of the annual coarse growth zone.

Branches with carved buds are weak and need to be erased. Nutrition should focus on carved buds.

5. Graft the new buds on the tree.

When chestnut trees are grafted, a large part of the above-ground parts will be removed, and the supply exceeds the demand. After grafting, many buds will grow on the tree. The buds of grafted young trees need to be erased, and the nutrition should be concentrated in the grafted yard. Grafted large and medium-sized trees are easy to get sunburned on the back and southwest upper part of upright branches, so they need to be kept in the buds sprouting on the back and southwest, and the rest should be wiped off. At the same time, it is beneficial to relieve the tree vigor and prevent the grafted new shoots from growing vigorously.

The function of bud smearing is to reduce the number of new shoots in the crown, prevent the crown from closing, improve ventilation and light transmission products, or smear buds where branches are not needed, so that nutrients can be supplied to the reserved branches and promote the growth of the reserved branches and buds. Bud smearing should be carried out as soon as possible to avoid the waste of nutrition, which is usually carried out when the buds germinate and ends when the branches are semi-lignified.