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淮河以南地区春季阴湿害是影响三麦稳产、高产的主要原因，提出确定阴湿系数Ｑ 来判别阴湿害的方法，并将研究结果应用于１９９８ 年春季阴湿害的判别，效果很好。
In the area south of Huaihe River, the overcast wetness in spring is the main reason to affect the stable yield and high yield of Sanmai. The method of determining the negative coefficient of wetness Q to discriminate the wet dampness is proposed. The results are applied to the discrimination of the wet dampness in spring 1998, it is good.