How to prevent frost in northern grapes and how to deal with frost

1. Antifreeze Methods

1. Water the plants in time to prevent frostbite: The temperature in the north is relatively low, so the plants must be buried in the soil to avoid frostbite. It is necessary to water the plant with anti-freezing water 10 days before burying it in the soil. The purpose is to prevent its roots from freezing and to prevent drought in early spring. When watering, be sure to water thoroughly and sufficiently to saturate the soil. After watering, wait until the soil is slightly dry before covering it with soil.

2. Cover with anti-freeze soil in time: After the temperature drops in autumn, pruning should be carried out in time and the branches and vines should be tied up. Because the temperature is low and the wind is strong in early winter, the moisture in the branches and vines easily evaporates, which is not conducive to the later wintering and growth in the second year. In addition, if the temperature remains stable at two degrees, bury the plant in anti-freeze soil. The soil doesn't need to be too thick for the first burial, as long as the branches and vines are not exposed.

3. Bury the second anti-freeze soil: The second anti-freeze soil is carried out when the temperature remains at zero degrees. At this time, the buried soil needs to be thickened, and the specific thickness depends on the temperature. If the temperature 80 cm below the ground is minus 2 degrees Celsius, then the thickness of the anti-freeze soil should be between 20 and 30 cm. For every degree the soil temperature drops, the thickness of the buried soil should be increased by 10 cm. And so on, this way you won't get frostbite. Pay attention to the width of the anti-freeze soil, which should not be less than 1.2 meters. In addition, cover the roots with corn stalks or hay to increase the temperature of the roots and avoid frostbite.

2. Method of burying soil

There are two common methods of burying soil: above-ground burial and underground burial. The ground burying method is to press the pruned branches and vines on the ground and then cover them with soil. The underground burial method is to dig a deep trench where the branches extend, with a depth and width of approximately 30-50 cm, and then press the branches into the trench and cover them with soil.