Snow in the tree tray of fruit trees has the following advantages: First, it can prevent freezing. To prevent the spread of heat in the soil, but also can prevent the cold air from invading the underlying soil, so that the soil temperature is relatively stable, and the roots of fruit trees are protected from freezing damage. The second is to add nutrients. In the melted snow water, the nitrogen content is 4 times higher than that of the same volume of rainwater, and seeping into the soil can increase the soil fertility and supplement the fruit trees with the required nutrients. The third is to add moisture. After the winter dormancy of fruit trees, the respiration and transpiration were weakened, but the roots still absorbed water and transferred to the shoots for winter transpiration. Winter transpiration of fruit trees is also a form of overwintering adaptation. After the snow under the trees, it will not only reduce the evaporation of surface water, but also increase the soil moisture content and increase the drought resistance of the fruit trees. The transpiration of the fruit trees will not be destroyed due to the insufficient water supply in the underground, which will protect the fruit trees from freezing damage. . At the same time, due to sufficient soil moisture, it can meet the spring water requirement of fruit trees. Fourth, fruit trees can promote growth. The heavy water content of snow water is 1/4 less than ordinary water, and the content of toxic and harmful substances such as phenol and mercury is also less than that of ordinary water; heavy water has an inhibitory effect on the growth of plants. Therefore, the snow melted under the fruit trees is conducive to the growth and development of fruit trees. Fifth, you can freeze overwintering pests. When the snow melts, the temperature of the soil is reduced by absorbing the heat in the surrounding environment, and overwintering pests can be frozen and the earlier the snow is released, the better the disinfestation effect. The snow under the trees should have a thickness of 30 cm or more. The range of snow cover is not less than the vertical projection of the crown, and can be larger than the edge of the crown. If the amount of snowfall is small, the snowfall in the whole orchard within the orchard can be collected and piled under the fruit trees, or collected from the outside of the orchard and transported to the accumulation under the trees, and the accumulated snow can be leveled and compacted to reduce evaporation and melt. Snow infiltrate into the soil and give full play to the effect of snow under the trees. Ground Chili Powder,Chili Powder,Red Chilli Powder,Red Chile Powder Ningxia Ningyang Halal Food Co., Ltd. , https://www.ningyangfood.com