Symptoms occur Pomegranate tree frost damage and freeze-drying often occur mixed, but the two have obvious symptoms. Frost damage caused the formation of tree trunks to become brown, especially the branches and branches of the trees are vulnerable to freezing damage. Freezing damage gradually increases from winter to spring. Freezing drought, also known as pumping, is caused by both cold and drought. Freezing and drying caused dehydration and shrinkage of the epidermis of the branches. The xylem of the xylem changed from green to yellow-white and the xylem was dry and dead. Freezing damage is caused by the extremely low temperature in winter, and the drawing-out occurs in the early spring, when the weather is warm, the temperature rises, and the wind is dry and windy. cause 1. Tree age. Pomegranate trees grow more than 5 years old. The branches have a high degree of lignification and are not susceptible to freezing damage. The young trees with a younger age of 1 to 3 years are more prosperous due to the growth of tree vigor, and the degree of lignification of the shoots is low, resulting in serious frost damage. 2. Weather reasons. Low temperature, frost, and late spring are all very likely to cause frost damage. Precaution 1. Buried against cold. Applicable to 1 to 2 years old young trees, the pomegranate tree piled about 30 cm on one side, and then press the upper part of the trunk bent down, the upper cover of the soil, insulation and water retention effect is obvious, for more than 3 years is not easy to bend Big trees are not suitable. In the spring of the following year, when the temperature rises, the soil in the rhizosphere soil of the plant is timely planed to prevent the ground temperature from picking up too slowly and the temperature rising too fast. 2. Grafting cold-resistant rootstocks. The use of hard seedlings with strong cold resistance as the rootstock grafted pomegranate tree fine varieties, can be a good way to improve the frost resistance of seedlings, the production of acid pomegranate as the rootstock, grafting in the ground from 50 to 70 cm high access. 3. Tree trunks are tied. Before the roots and necks were soiled, the height was about 30 cm and they were compacted. Then the corn stalks and straws were tied on the trunks, and the outside was covered with cotton cloth or plastic cloth. There should be gaps, not too strict, to prevent the branches from suffocating death. In the second year of spring, in late March, when the pomegranate germinates, it removes the ties and prevents it from freezing and causing freezing injury. 4. Site selection. When constructing a park, we should choose lands with sunny leeward conditions and good microclimate environment, and construct protective forests on the north side and northwest side of the gardens, or plant and plant mixed with other fruit trees to increase their antifreeze capacity and avoid frost damage. 5. Increase organic fertilizers to improve the ability of the tree to resist freezing. After the pomegranate tree germinates and sprays 2 to 3 times of potassium dihydrogen phosphate solution in the growing season and growing season, the tree can grow robustly. Reduce the application of fast-acting fertilizers, especially fast-acting nitrogen fertilizers, in the near-mature stage of fruits to avoid plant growth and ensure normal dormancy. After harvesting fruits in autumn, rational application of decomposed organic fertilizers will help the tree to accumulate nutrients and improve cold resistance. 6. Spray plant growth regulators. Paclobutrazol can effectively control the growth of plants, inhibit the apical dominance, promote the development of the root system, and enhance the plant's resistance to drought and drought. In early August, the pomegranate tree was sprayed with paclobutrazol 400 times, sprayed every 7-10 days, and sprayed continuously for 3 times, which could have a good antifreeze effect. Botanical Extract refers to the material extracted or processed from plants (all or part of plants) with appropriate solvents or methods, which can be used in the pharmaceutical industry, food industry, health industry, beauty industry and other industries. Botanical Extract ,Andrographolide Powder ,Kaempferol Powder, Isolated Soy Protein Meat Xi'an Double H Health Technology Co., Ltd , https://www.dhextract.com