In order to ensure the production of tea in spring, we must do a good job of preventing cold and freezing in spring tea gardens.
Countermeasures 1. Manual coverage. Before the low temperature and cold wave comes, use straw, mulch, etc. to cover the rows of tea gardens or the surface of the tea canopy to prevent the soil and the canopy surface from freezing and freezing. After the temperature has risen steadily, remove the covering in time.
2. Water spray irrigation. Conditional tea gardens can be irrigated with continuous spray water to prevent the temperature of tea leaves from falling below the freezing point and causing freezing damage.
3. Spray antifreeze. Spray tea antifreeze on the tea canopy surface, such as 0.5% potassium dihydrogen Phosphate and brassinolide mixed water.
Remedial measures 1. Newly-built tea gardens are prone to freezing damage, so we must pay close attention to timely replenishment of seedlings in early spring, especially new tea gardens on high mountains, windward, and shady slopes.
2. According to different degrees of freezing, adult tea gardens should choose different pruning depths such as light pruning and heavy pruning. The pruning time should be carried out after the temperature has risen and stabilized. When pruning tea trees with serious frost damage, “prun the deep but not shallow”.
3. Strengthen water and fertilizer management. Frozen tea gardens need a lot of nutrients during the restoration process. The follow-up fertilization of tea trees should be mainly organic fertilizers, supplemented by quick-acting fertilizers.

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