Anti-cold methods and matters needing attention of grape buried in soil

In winter, the common cold protection measure for grapes is to bury the soil against the cold. At this time, the key link in grape cultivation is not only to protect the branches and vines safely through the winter, but also to prevent the roots from freezing. But when burying the earth to prevent the cold, we should also pay attention to a few points. Let's take a look at the detailed introduction together with the editor.

1. Preparatory work

Grape is a temperate plant and belongs to temperature-loving crops with poor cold tolerance. Generally, 17 degrees below zero in winter is the dividing line between grapes overwintering with buried soil and those without burying soil. Grape burial is usually carried out 10-15 days before soil freezing after autumn pruning, that is, before the ground temperature is close to zero but before freezing, of course, the specific time should be flexible according to the local weather. Before burying the soil to prevent cold, it is necessary to prune and disinfect the grapes, irrigate frozen water and press vines.

2. Burying method

The method of burying soil is also divided into a variety of, commonly used is the direct burying method, this method is more suitable for winter temperature is not very low, the soil is more delicate. Another is to cover organic matter first, then cover a layer of plastic sheet or color strip cloth, and then bury the soil, this method uses less soil, and the safety factor is high. At present, mechanical burying has been widely used in most grape producing areas in China, but we should pay attention to the distance between grapes and not damage the roots at the same time. If it is a cold shed grape or cold-free areas in winter, you only need to solve the problem of vine extraction, or you can press the soil at the edge of the plastic sheet to keep the air from leaking.

3. Points for attention

First of all, after burying the soil, we should pat the mound and strictly prohibit the occurrence of air leakage. in addition, the soil is taken as far away from the root system as far as possible, and it is generally necessary to be 1 meter away from the root stem to avoid frost damage to the root system. When pressing the vine to bury the soil, you can pad it at the bend of the trunk to avoid breaking the base, and the loss caused by this is also great. Because of the difference of region and environmental temperature, the thickness of buried soil is also different, and because the cold tolerance of different grape varieties is also different, it is necessary to determine the thickness of buried soil according to the local climatic conditions and grape varieties. After burying the soil, the soil should be checked frequently before freezing, and special attention should be paid to the northwest part of the mound, and the soil should be mended in time after being hung up, so as to avoid the soil layer being too thin and causing the plant to suffer frost damage.

The above is the grape buried cold prevention methods and points for attention, hope to help you, want to know more related knowledge, please pay attention to us.