喷施高脂膜,是防止柑桔冻害发生的一项行之有效的措施(尤其在冰冻较重的年份)。据实验应用,在最低温度达到-11.5℃的情况下,用高脂膜保护的柑桔树,只是叶片稍发黄,无落叶和死枝,而对照柑桔树的叶片全因冻害落光,部分枝条甚至因受冻枯死。 Spraying high-fat film is an effective measure to prevent citrus frost damage (especially in years of heavy ice). According to the experimental application, at the lowest temperature of -11.5 ℃, the citrus trees protected by high fat film showed only slight yellowish leaves, no deciduous leaves and dead branches, while the leaves of the control citrus trees were all exposed to light and freeze, Some branches even died due to freezing.