How to ensure safe winter vines

1. Grasp the Cold Resistance of Grapevines Only by knowing the temperature indicators of vine damage can one get a good idea. When the ground temperature at the grape roots drops below -6°C, the root system will suffer from various degrees of frost damage; when it falls below -8°C, it will be completely frozen. Therefore, the temperature of the grape's roots during hibernation should be kept below -6°C, which is a safety indicator of grapevines not being passively frozen. 2. Pay attention to the timely pouring of frozen water In the winter before the grapes are buried in the cold-proof soil for 10 days, the frozen water should be poured once. The purpose is to prevent root freezing injury and drought in early spring. When irrigation, it is necessary to fill the soil. When the soil reaches a saturated state, it should be buried and kept cold when the soil on the ground is slightly dry. 3, timely off the shelf on the first layer of the cold-proof soil suitable for the cold-proof period is after the winter pruning, to the soil before freezing. It usually begins in mid-October and ends in late October or early November. After the grapes are first fallen, they should be cut in time. After the autumn cut, the dead branches and leaves in the garden are cleared, and then the grapes are removed from the rack. The branches and branches are placed on the ground, and the branches are tied with a straw rope or a tear film to overwhelm them. Keep the first cold soil before the frost. Do not overfill the ground for the first time. 4, timely buried the second time to prevent the cold soil buried in the second cold soil, not only in time to master, but also must strictly control the good quality, which is the key to determine the success or failure of grape cold, that is buried before freezing The second time the cold soil. At the same time, attention should also be paid to early burial of saplings, and large trees can be properly buried late. When burying the second cold-proof soil, cover the corn stalks or hay and then bury it. According to experiments, this can significantly increase the temperature of the roots of the grapes and help prevent the cold. The width of the buried soil shall not be less than 1.8-2 meters, and the thickness of the buried soil shall not be less than 60 centimeters. The front of the cold soil is trapezoidal, with a width of 1.2 meters. For the sake of safety and cold protection, it is best to keep the depth of the cold soil 80 centimeters deep. 5, pay attention to take the land and back to protect the trench to prevent the cold soil must be in the vine outside the trunk on both sides of the line taken, not too close to the roots, so as not to damage the roots and frozen roots. Where there are irrigation conditions, the fetching ditch should be filled with water and frozen into ice after being frozen. This will not only reduce the thickness of the frozen soil, but also help the wintering of the root system and drought prevention in the late spring. Where there is no irrigation condition, it can also be used to cover the ditch with items such as grass, etc., to prevent the grape from being frozen. When it is found that cracks appear on the cold-proof soil after entering the winter, the cracks should be covered with soil in time. When entering the January-February of the Jubilee, especially when the weather is particularly cold, some cold-proof materials such as fireweed or horse dung can be piled on the cold-proof soil to ensure that the grapes are not frozen.

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