How to prevent frost and cold damage to grapes
Are you curious about the green plant and flower aspects of how to prevent frost and cold damage to grapes? Let's take a look together!
How to prevent frost and cold damage to grapes
Grapes are a very common fruit with high market demand, and many people enjoy buying and eating them, so more and more people are growing them. In winter, grapes are prone to cold damage. So, how can we prevent grapes from getting cold? The editor will tell you next!
Plastic Film Cold Protection Method
In recent years, some grapeyards in the northeast have tried plastic film cold protection with good results. The method involves first covering the branches with wheat straw or稻草 to a thickness of 40 centimeters, then covering with plastic film and surrounding it with soil. However, special care must be taken not to break the film to prevent cold air from seeping in and causing frostbite. This method can ensure safe overwintering in our area (Linyi, Shandong), but it may not be very effective in Liaoning, Hebei, and Gansu.
Underground Ditch Burial Method
Excavate a cold protection ditch 50cm away from the rootstock, 40-50cm wide and 40-50cm deep, and place bundled branches and vines in the ditch; straw can be used to cover first or buried directly in the soil. This method has caused damage to the roots over the years and is labor-intensive but has been widely used in some areas.
Deep Ditch Planting Cold Protection Method
This method is suitable for dry climates and well-drained plots. There are two ways to dig ditches 30-40cm deep before planting: one is for growth and the other is for cold protection.
(1) Burial Cold Protection
Tie the branches and vines together and place them in the ditch. To facilitate上架 and reduce damage to branches and buds, cover the branches and vines with a layer of straw before covering with soil. This method saves soil, labor, and has a high safety factor compared to the ground burial method.
(2) Hollow Cold Protection
First, tie the branches and vines together and place them in the ditch, then place small wooden stakes on the ditch, cover them with straw, and then cover with soil to the required width and thickness. This method has better moisture retention than the burial method and a higher safety factor in winter, but it has higher material costs.
Simple Cold Protection Method
Since the cold resistance of the roots is 2-4 times that of the own-root seedlings, cold protection measures can be greatly simplified, saving 1/3 to 1/2 of the labor. For example, in the northern part of Chengde, Hebei, organic mulch can be removed, and the soil can be directly covered to ensure the safe overwintering of the branches and roots. Therefore, using cold-resistant rootstocks and implementing simple cold protection is the development direction of grape production in cold areas. The cold resistance of the rootstock is BeDa.
The specific content of how to prevent frost and cold damage to grapes introduced above is for everyone's reference and operation.