How to keep trees warm in winter in the north?

Cover with protective material: wrap the trunk with straw or wheat straw and tie it tightly with rope. Trunk paint: Paint the trunk with white paint containing quicklime. Bagging insulation: the height of the tree is about 1 m, which can be bagged for insulation in winter. Maintenance and management: cut off weak branches, diseased branches and dead branches to improve light transmission conditions.

Method of keeping trees warm in winter in northern China 1, covered with protective material.

The winter climate in the north is cold. In order to avoid freezing injury of trees, during the period of 10- 1 1, the trunk can be wrapped with materials such as straw or wheat straw and tied with ropes, or wrapped with plastic film.

2. Trunk painting

After winter, applying white paint containing quicklime on the trunk of trees can not only reduce the temperature difference between day and night, avoid frostbite of plants, but also kill insects and sterilize them, reduce the probability of pests and diseases, and help trees spend the cold winter safely.

3. Bagging for heat preservation

If the plant shape of the tree is small and the height is about 1 m, it can be bagged to keep warm in winter. When the weather is clear and sunny, the bag mouth should be opened to strengthen air circulation. After the temperature rises, an appropriate amount of water is needed.

4. Maintenance management

If trees want to overwinter safely, they need to be watered at 1 1 at the beginning of the year, and mounds should be piled at the base, which can effectively improve the cold resistance of plants, cut off weak branches, diseased branches and dead branches, improve ventilation and light transmission conditions and promote the formation of photosynthesis.