More precipitation amount and rain days helped to increase effective stalks and fiber fineness.
雨日和雨量较多能增加有效株数，提高纤维支数。
The percentage of summer, spring, autumn, or winter heavy rain days to annular heavy rain days is 60, 29, 10, or 1, respectively.
夏季、春季、秋季及冬季区域暴雨日 数占总日数的百分比依次为60%、29%、10%及1%。
Crop yield had a quadric correlation with the rainfall and rain days. which correlation coefficient with rainfall was higher than that with rain days.
产量与降水量和降水日数均为二次曲线关系，与降水量的相关系数高于降水日数。
Crop yield had a quadric correlation with the rainfall and rain days. which correlation coefficient with rainfall was higher than that with rain days.
产量与降水量和降水日数均为二次曲线关系，与降水量的相关系数高于降水日数。
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