Detailed Tutorial on the Latest Techniques and Methods for Winter Pruning of Chestnut

The chestnut tree is a fine dried-fruit tree species native to China, with strong adaptability and extremely strong cold and drought tolerance, and winter pruning is an extremely key part of chestnut cultivation. So how should chestnuts be pruned in winter? Many farmers are asking, so let's take a look together with the editor below.

1. Pruning time

The best time for winter pruning of chestnut is from half a month after leaf fall to half a month before bud break at Spring Festival, that is, from mid-December to early February of the following year. However, if injured by freezing weather, it should be postponed to avoid low-temperature freeze damage causing a relatively large impact on the fruit trees.

2. Pruning of young trees

For winter pruning of young trees, one should grasp the principle of giving priority to pruning during the dormant period as supplementary, preferring light over heavy pruning, and removing few branches without heading back. During winter pruning, all side branches below 40-50 cm on the trunk should be cut off, and at the same time remove excessively dense branches, slender branches, overlapping branches, crossing branches, etc. inside the canopy. At the same time, good fruiting branch groups should be selected and retained, the distance and direction between each branch group should be adjusted well, and the main branches should be cultivated well. The extension branches of the scaffold branches can be left unpruned for one year and headed back in the second year.

3. Pruning of trees in full fruit period

For pruning plants in the full fruit period, diseased and insect-damaged branches, dead and dry branches, crossing branches, and overlapping branches inside the canopy should be cut off to strengthen the permeability within the crown, concentrate nutrients, and make the fruiting branch groups grow thick and strong. For the terminal branches and extension branches, it is advisable to leave 50 cm for heading back, so as to promote the sprouting of side branches, increase fruiting mother branches, and at the same time control the outward shifting speed of the crown. For fruiting mother branches that grow densely, a part should be appropriately thinned out, or a part of the renewal branches should be headed back. For fruiting branches that grow excessively vigorously, appropriate heading back can also be carried out to promote the sprouting of new branches from the lower part and renew and rejuvenate the fruiting branch groups.

4. Pruning of aged trees

For plants that are relatively severely aged, they can be dug out and replanted. If there are sprouting shoots at the base, excellent-variety grafting can be carried out, and after they are cultivated into usable trees, the aged trees can be sawed off. For plants that are not too severely aged, after cutting off dead and dry branches and diseased and insect-damaged branches, the water sprouts and thin weak branches inside the canopy can be headed back, and the aged parts can be retrenchment-pruned. As for the new branches sprouting the following year, well-growing ones can be selected from them for cultivation, so that they become scaffold branches and fruiting branch groups.

The above is an introduction to the winter pruning techniques for chestnut. We hope it can help you. If you want to learn more related knowledge, please stay tuned to us.