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淮南稻麦地区,小麦生育期间降水较多,渍害严重,而且小麦生育后期的五月份,日照百分率仅40～50％,影响小麦高产稳产。
In Huainan rice-wheat area, there was more precipitation and serious soil damage during wheat growth, and the percentage of sunshine in May was only 40-50% in wheat growth stage, which affected high and stable yield of wheat.