大水之年防大冻据历史资料记载，一般当年发大水，冬季有较大冻害发生。１９９６年７月，长江流域遭受洪水袭击，故今冬发生冻害的可能性较大，应充分作好柑桔树的防冻工作。１于秋梢展叶期喷施一次“年年丰”（长沙东湖经济作物高产用品研究所生产），促使秋梢及早老化；... According to historical records, floods generally occurred in the same year and larger frost damage occurred in winter. In July 1996, the Yangtze River Basin suffered a flood attack. Therefore, it is more likely that freezing damage will occur in winter and winter, and orange trees should be adequately prepared for antifreeze work. 1 in the autumn shoots sprayed a “Year Feng” (Changsha East Lake Economic Crops Institute for the production of high-yield products), prompting the autumn tip and premature aging; ...