本刊讯（特约通讯员）在２０世纪的最后几天里，因受北方强冷空气的影响，江西省南丰县绝对低温达到－６．６℃，低温霜冻持续了一周；加上南丰蜜桔１９９９年结果量多，持续４个月没有下一场透雨，肥水管理没跟上，南丰蜜桔遭受了严重冻害。据初步调查，在南丰县１．１万ｈｍ In the last few days of the 20th century, due to the strong cold air in the north, Nanfeng County in Jiangxi Province reached an absolute low temperature of -6.6 ℃ and the low-temperature frost lasted for a week. With the addition of Nanfeng Orange Results in 1999 and more, for 4 months without the next rain, fertilizer and water management did not keep up, Nanfeng orange suffered a serious freeze injury. According to a preliminary survey, Nanfeng County 11,000 hm