Pruning methods of Chestnut trees in Summer

Chinese chestnut is a kind of fruit with high economic value, which can not only be eaten, but also can be used as a vegetable to cook, and it also has a certain medicinal effect. The market in our country is still relatively large, so now more and more people plant chestnut trees. When planting chestnut trees, we should pay attention to pruning in summer. So what exactly should be done? The following editor brings you the method of pruning chestnut trees in summer. Let's have a look!

1. Pick the heart

For the chestnut trees within 3 years after grafting, we have to pick the heart of the chestnut trees in summer, mainly in order to cultivate the shape of the chestnut trees. Usually in mid-May, we have to pick the hearts of some prosperous branches of the chestnut tree about three times. When the new shoot grows to 0.5m, you can start to pick the heart and remove the tender shoots around the 2cm at the top of the new shoot. Then the second coring is performed when the branches grow to 30cm, and finally the newborn autumn shoots are removed after the Mid-Autumn Festival. The main purpose of this is to dwarf the crown, promote the growth of branches, advance the fruiting time and increase the yield.

2. Pull the branch and open the angle

The top growth advantage of young chestnut tree is relatively large, so we have to pull and open the angle of some erect growing paper and auxiliary branches. When pulling branches at an open angle, the angle should be kept at about 65 degrees. And it should be scratched at the upper and lower end of the bud at about the 30cm on both sides of the branch, and the depth of the wound was mainly to reach the xylem. Increase the number of branches so that the treated branches can sprout sturdy new branches and avoid the phenomenon of bare branches when they bear fruit in the second year.

3. Wiping the buds and soothing the male

When the buds grow to the soybean consignment, about 5 full buds should be retained at the upper end of the developing branches on the plant. Keep about 3 in the middle and lower parts, and then erase all the excess buds. In order to go to the big and stay small, go to stay high and so on as the principle, the nutrition will be concentrated to reduce the phenomenon of female flower abortion. The male inflorescence of Chinese chestnut is more, so the amount of pollen will be more, resulting in too much nutrition consumption. In order to increase the number of female flowers and fruit setting rate. When the male inflorescence grows to about 4 cm, all the male flowers under the mixed inflorescence should be removed and about 10% of the male flowers should be retained.

4. Thinning branches and spiny buds

In summer, we also need to remove some germinating branches in the inner chamber of chestnut trees in time, mainly with weak growth ability and weak vegetative branches. Then it is necessary to do a good job of thinning the buds and do it for the first time in July. The strong branches retain about 3 spiny bracts, and the strong fruit branches retain about two. If it is a weak fruit branch, then all of it should be removed. Then the second thinning was carried out before the Mid-Autumn Festival, mainly to remove the spiny buds of the first omission, and the average prickle buds of each tree branch were retained at about two.

The above is a brief introduction to the summer pruning methods of Chinese chestnut trees. That's all for today's introduction. This article is for reference only. I hope it can help you all.