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采用正交多项式、灰色系统关联分析等方法，对沿江棉区气候与产量的关系进行了分析。得出沿江棉区棉花产量受气候波动的指数ｙ＿Ｆ值为０．３１７４；气候对棉花产量作用的百分比为３６．６２％；５月１日至入梅前光照、温度，出梅后至早秋连阴雨前的光、热、水，９月中旬至１０月底的光照、大于等于棉纤维沉积的下限温度１５℃的有效积温等３时段７要素，对棉花产量影响最大，并依据１９８７年以来初霜期推迟、９月下旬至１１月底光照、日均温增高、≥１５℃有效积温增加，１０月份降永减少的趋势，提出了沿江棉区在棉花栽培上应采取“前期配套争早发、攻７月现蕾强度；后期配套争一只顶，攻伏桃、早秋桃和铃重”的对策，充分利用气候资源时空优势，因势利导夺高产。
Using orthogonal polynomials, gray system correlation analysis and other methods, the relationship between climate and yield in the area along the Yangtze River was analyzed. We can draw the conclusion that the index y_F of the cotton yield fluctuated in the Yangtze River cotton area is 0.3174; the percentage of the effect of the climate on the cotton yield is 36.62%; from May 1 to the light before the plum, the temperature, Of light, heat, water, light from mid-September to the end of October, and effective accumulated temperature equal to or greater than the minimum temperature of cotton fiber deposition of 15 ℃ have the greatest impact on the cotton yield. According to the postponement of the initial frost period since 1987, From late September to the end of November, the daily average temperature increased, the effective accumulated temperature increased ≥15 ℃, and the decreasing tendency of the temperature dropped in October. It was suggested that cotton plantations along the Yangtze River should take the following measures: Bud strength; the latter part of the fight to fight a top, peach peach, early autumn peach and boll weight "strategy, make full use of the advantages of spatio-temporal climate resources, high yield advantage lead.