In winter, the weather is cold and freezing of vegetables can occur due to careless cultivation and management. In order to ensure that winter vegetables are free from freezing damage, here are ten ways to introduce winter vegetables to prevent freezing: The wind barrier method uses straw to make a wind barrier of 1 to 1.5 meters high adjacent to the vegetable culm, and sets a wind barrier every 3 to 4 inches. Coverage method In the afternoon before the onset of frost, straw, rice straw, etc. are used to cover vegetables and vegetables, which can reduce wind and cold mechanical damage. Use 100 kg of straw per acre. To sparsely disperse, must not cover all vegetables to prevent affecting photosynthesis. Winter irrigation before the frost irrigation, after the cold can make the temperature rise 2 °C ~ 3 °C. Soil cultivators combined with cultivators before soil cultivation, cultivating roots with crushed soil, can loosen the soil, increase soil temperature, and can directly protect the roots, but the cultivator must be soil before the soil is frozen, the depth of 7 to 10 cm is appropriate. Open ditch drainage method to open a good "three ditch" to ensure that the ditch, canal, field open, in order to promptly eliminate frozen water. Pouring soil with pre-frost combined with cultivator and cultivating roots with crushed soil can loosen the soil, increase soil temperature, and directly protect the roots, but the cultivator soil must be carried out before the soil is frozen. The depth should be 7-10 cm. The first method is to sprinkle a thin layer of ash on the vegetables before the low-temperature freeze injury occurs; the second is to sprinkle wood ash between the rows. Apply organic manure and spray nutrient solution. Before the frost, use pig cow dung or soil heterotrophic fertilizer to incubate the farmyard manure. Circle the roots of the vegetable crop to increase the soil temperature by 2°C～3°C. 1000 to 1500 kg. At the same time spraying "cloud 120" meat, green Fenwei, love more than other plant nutrient solution, in order to improve the plant's ability to resist cold. Smoke method uses weeds, straw, dead branches, fallen leaves, etc. to be stacked around the vegetable fields. Before the frost comes, smoke is smeared at the corners of the wind head to disperse the cold current. But forbidden to burn vegetables. The nitrogen control method will reduce the amount of nitrogen fertilizer in the seedling stage and it must not be applied to nitrogen fertilizer to avoid the cold resistance of the plants. Top dressing is early to promote vegetable seedlings. Before the advent of low temperature, do not use nitrogen fertilizers. Apply phosphorus and potassium fertilizers once to enhance the cold resistance of vegetables. China Extract Powder For Use As Dietary Supplement Extract Powder, Extract Powder Manufacturer Shaanxi Kang New Pharmaceutical co., Ltd. , https://www.bio-pharmacies.com