The latest course on winter shearing techniques of Chinese chestnut

Castanea mollissima is an excellent dried fruit tree specializing in China, which has strong adaptability, strong cold tolerance and drought tolerance, and the cultivation of Chinese chestnut is very important in winter cutting. So how to trim Chinese chestnut in winter? Many farmers are asking, so let's take a look at it with the editor.

1. Pruning time

The best time for winter shearing of Chinese chestnut is from the second half of deciduous leaves to the first half of Spring Festival, that is, from the middle of December to the first ten days of February of the following year, but it should be carried out slowly if the freezing weather is damaged, so as to avoid the great impact of low temperature and freezing injury on fruit trees.

2. Pruning young trees

Young trees should master the principle of winter pruning during hibernation, light rather than heavy, less sparse and non-cut, and cut off all the lateral branches below 40-50 cm of the main trunk during winter pruning, while thinning the over-dense branches, slender branches, overlapping branches and cross branches in the tree chamber, at the same time, we should select a good fruiting branch group, adjust the distance and direction between each branch group, and cultivate the main branches. the extended branches of the backbone branches can be slowed down for one year and cut short for two years.

3. Tree pruning in full fruiting period

The plant pruning in the full fruit stage should cut off the disease and insect branches, dry and withered branches, cross branches and overlapping branches in the tree chamber, strengthen the permeability in the crown and concentrate nutrients to make the fruiting branch group grow stout. On the other hand, 50 cm should be left for cutting off the apical branch and the extended branch to promote the lateral branch, increase the fruiting mother branch and control the outward movement speed of the crown. For the growth-intensive sows, it is necessary to properly remove part of the regeneration branches, or truncate part of the regeneration branches, and for the overgrowing fruit branches, it is also appropriate for Sister Dan to promote the emergence of the lower new branches and renew the rejuvenation group.

4. Pruning aging trees

For more serious aging plants can be dug up and then re-seedling, if there are sprouts at the base can be superior seed grafting, cultivated into wood and then sawed off the aging tree. For the plants with less serious senescence, the dry and withered branches and disease and insect branches can be cut off, and then the long branches and weak branches in the tree chamber can be cut short, and the old ones can be shrunk roughly, while for the new branches that come out in the coming year, the ones that grow well can be selected and cultivated to become backbone branches and fruiting branches.

The above is the introduction of winter shearing technology of Chinese chestnut. I hope it can help you. If you want to know more about it, please follow us.