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棉花原产于热带,是纤维、蛋白质、油料三者并重的经济作物;它要求温暖、湿润的气候条件。我省棉花播种面积近年来为100万亩左右,单产自1984年起超过百斤。历年来棉花产量波动较大,其原因一方面由于品种、栽培水平、土壤等的变更;另一方面也与气象条件密切相关。影响我省棉花产量的关键气象因子是:4月春雨低温引起烂种缺苗;伏秋干旱和高温导致花铃脱落;秋季阴雨、少日照造成烂铃烂桃。按照江西省棉花生产农业气候区划的结论,瑞昌、永修、波阳、彭泽一线以北的县
Native to the tropics, cotton is a cash crop with equal emphasis on fiber, protein and oil; it requires warm, humid climates. Cotton sown area in our province in recent years for the 1000000 acres, yield since 1984, more than jin. Over the years, cotton production fluctuates greatly due to changes in varieties, cultivation levels and soil, on the one hand, and on the other hand, weather conditions are also closely linked. The key meteorological factors affecting the cotton yield of our province are as follows: the low temperature in April rains lead to the lack of seedlings; the drought and high temperature in autumn leads to the fall of flowers; the rainy autumn and the less sunshine result in rotten peach. According to the conclusion of agricultural climate division of cotton production in Jiangxi Province, the counties north of Ruichang, Yongxiu, Bo Yang and Pengze