冻害是茶叶生产上的最大灾害，历年来各地都有轻重不同程度的发生，尤其是高寒山区更为严重。茶树一旦发生冻害，轻则减产和降低质士，重则枯死，并连续几年要减少收成。预防茶树冻害措施首先是重施基肥，并掉施磷钾肥、猪牛囊及其他暖性。科以提高地沉。二是在茶树四周（基栽 Frost damage is the biggest disaster in the production of tea, all over the years have varying degrees of severity, especially in the alpine region is more serious. Once the frost damage occurs in the tea tree, the reduction of production and the reduction of the quality of the quality of the tea, while the dead, and for several years to reduce the harvest. Prevention of tea tree frost damage measures first and foremost to re-base fertilizer, and phosphorus and potassium off the pigs, pigs and other warm cattle pigs. Section to improve Shen. The second is around the tea tree (base planted