The latest winter freeze prevention measures for chestnut trees

Chinese chestnut is a common food in China, in which wild chestnut is mainly distributed in the south. Of course, there is also a large planting area, in the planting of Chinese chestnut, management must be very important. Especially in winter, because the winter temperature is very low, if the management is not in place, then the chestnut tree is extremely vulnerable to frostbite. So the editor below brings you measures to prevent the freezing injury of chestnut trees in winter. Let's have a look!

1. Clear the garden and prevent frost

At the end of autumn and the beginning of winter, it is the period of defoliation of Chinese chestnut. The main picking time of Chinese chestnut is usually in October, but although it has been picked, there are still some scattered chestnut fruits on the branches when the leaves fall. Therefore, if you want to ensure that the chestnut trees survive the winter safely, then the garden cleaning work is very important. First of all, the fruit should be picked, and then the old, sick and withered branches should be cut off, and some weak branches should also be cut off. Improve the permeability of the tree, and then burn the fallen leaves and dead branches.

2. Ploughing woodland

Then turn the young chestnut tree shallowly and keep the depth around 15cm. If it is an adult tree that has borne fruit, then it is necessary to deeply expand the hole, and then add the right amount of humus soil to create a good growth welcome for the root system. The deep turning depth of adult chestnut trees should be kept at about 32cm, and be careful not to hurt the roots of chestnut trees during deep turning. Moreover, comprehensive arrangement should be done to protect soil and water facilities from damage, avoid soil erosion caused by rainy days, lower ground temperature, and cause chestnut trees to be frozen in winter.

3. Rational fertilization

Before entering winter, we should do a good job of applying base fertilizer after harvest. Fertilizer should be based on farm manure, combined with the right amount of chemical fertilizer. Through the method of ditch application, dig a circular ditch around each tree and apply it. The depth and width of the groove are kept at about 40 cm. Then the amount of fertilizer should be controlled according to the age and growth of the tree. for example, if it is a big tree in the full fruit stage and the yield is about 20kg, then it is necessary to apply fertilizer about 120kg. It is necessary to cultivate the soil in time after fertilization, which can not only make the root system absorb effectively, but also achieve the purpose of increasing soil temperature.

4. Scraping and whitening

Scraping and whitening is also an effective measure to prevent frost injury of chestnut trees in winter. As long as the chestnut is more than ten years old, it can be scraped, and it should be scraped after the fruit is harvested. If it is in the north and other very low temperature areas, then it should be early spring alkaline shave. Because the warped bark and old bark of the main branches of fruit trees are lurking pest bacteria, which have a great impact on the growth of the tree, resulting in the decline of cold resistance, freezing injury and so on. After scraping, the big branches and trunks of chestnut trees are painted white, which can not only prevent freezing, but also prevent diseases and insect pests.

The above is a brief introduction to the preventive measures of freezing injury of chestnut trees in winter. That's all for today's introduction. This article is for reference only. I hope it can help you all.