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1999年 1 2月 1 9～ 2 8日广西各地出现了一次大范围的霜冻、冰冻天气 ,使龙眼等多种南亚热带果树遭受严重冻害。霜冻出现之后各地纷纷采取多种措施对受冻果树进行处理 ,但效果差别较大 ,笔者根据生产实践体会 ,在如下几个技术问题上谈一些粗浅看法。1 龙眼冻害症状及其发展
From January 29 to February 28, 1999, a large area of frost and freezing weather appeared across Guangxi, causing serious frost damage to the various south subtropical fruit trees such as longan. After the advent of frost, various localities have taken various measures to deal with the frozen fruit tree, but the effect is quite different. According to production experience, the author talks about some technical issues as follows. 1 longan frost damage symptoms and its development