1. Smoking method. When the cold air affects, light the smoke-producing objects around the tea garden. The smoke shielding can reduce the heat radiation of the ground and the surface of the tea tree body at night, save a lot of heat, and play a protective effect. 2. Water spray method. In the frosty night, when the surface temperature of tea leaves reaches the freezing point, spray water on them to release latent heat, which can slow down the temperature drop. As long as the water is continuously sprayed until the temperature rises at dawn, it can prevent the temperature of the tea leaves from falling below the freezing point; if it stops halfway, the temperature of the tea leaves will drop to the freezing temperature. Because the tea buds are exposed to water, they are more susceptible to freezing damage than when they are not exposed to water. . 3. Covering method. Paving grass on the ground of tea garden can reduce the depth of frozen soil and reduce the degree of freezing of tea roots. The use of sunshade nets to cover the canopy of tea trees can also achieve the same antifreeze effect, but it must be removed in time after the low temperature period to avoid insufficient light and affect the growth of tea buds. 4. Other management measures. One is the construction of plastic greenhouses, which is a better anti-freezing measure, but the use area is limited. Second, deep plowing and soil cultivation can promote the extension of fine roots to the lower layer of the soil, while increasing the thickness of the soil layer to protect the root system from freezing damage. Third, the fertilization of tea gardens should be timely and reasonable, and no or less quick-acting fertilizers should be applied at the end of autumn to avoid freezing of new shoots in winter; base fertilizer should be applied as soon as possible after the fall, which will increase the freezing damage of tea trees in winter. Fourth, tea gardens in areas prone to frost damage can be pruned before or after the spring of the following year. Once frost damage occurs, the frost damage layer can be cut off in early spring to promote the shoot out of the lower buds. Disclaimer: Some articles on this website are transferred from the Internet. If the legal rights of third parties are involved, please inform this website for handling. phone Hcg Pregnancy Strip,Pregnancy Strip Test,Urine Pregnancy Test Strip,Hcg Level Test Strips Weihai Kangzhou Biotechnology Engineering Co.,Ltd , https://www.weihaikangzhou.com
Tea Garden: Keep Four Points on Cold and Freeze Resistance