良好的适宜西瓜生长发育的气候条件,是西瓜充分展示自身魅力,农民获得优质高产最为重要的外在因素。反之,异常气候有可能产生严重灾害,使其品质低劣,产量下降,甚至绝收。１９９９年４、５、６三个月,我省淮河以南大部分地区气候异常,４月初至６月初气温较历年平均值偏高１～２ Good suitable watermelon growth and development of climatic conditions, watermelon fully demonstrated its own charm, farmers get high quality and yield the most important external factors. On the contrary, abnormal climate may cause serious disasters, resulting in poor quality, declining output and even absolute failure. 4, 5 and 6 months in 1999, the climate in most of the area south of the Huaihe River in our province was anomalous. The temperature in early April and early June was 1 ~ 2 higher than the average of previous years