How to keep northern grape vines warm in winter? Bury them in the soil at temperatures below zero

1. How to keep warm

1. Watering with anti-freezing water: In winter, the plant needs to be buried in the soil. Watering with anti-freezing water about 10 days before burying the plant can prevent its root system from being damaged by frost and avoid drought in early spring. When watering, be sure to water thoroughly and sufficiently to saturate the soil. Cover the soil when it becomes slightly dry.

2. Take down the shelves and bury the plants in the soil in time: In early winter, the temperature in northern China is low and the wind is strong. Pruning should be done in time to avoid excessive evaporation of water from the stems and branches. After pruning, tie up the branches and vines and cover them with soil when the temperature remains at 2 degrees. Don't bury too much soil the first time, just make sure the branches and vines are not exposed.

3. Bury the soil for the second time at the right time: When the temperature is at 0 degrees, bury the antifreeze soil for the second time. At this time, the thickness of the buried soil should be increased to avoid frost damage. You should also prepare an appropriate amount of hay or corn stalks to keep warm and place them on the root system to increase the temperature. Be careful not to dig too close to the roots. At this time, the width of the buried soil is approximately between 1.8 and 2 meters, and the thickness is more than 60 centimeters.

2. Buried in the ground at a few degrees below zero

Although grape vines have a certain degree of cold resistance, the temperature in the northern region is too low and they are easily frostbitten if they are not buried in the soil. The specific minus degree at which it should be buried depends on its cold resistance. Usually, the roots will be frozen when the temperature is minus 6 degrees Celsius, and the plants can easily be killed when the temperature is minus 8 degrees Celsius. Therefore, the temperature should be controlled above -6 degrees Celsius. It is recommended to bury the plants in the soil when the temperature drops by 2 degrees to avoid freezing.