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我国麦区辽阔,除青海和新疆等地麦收季节天气干燥、晴朗、气温偏低外,其他大部麦区,都有可能遇到不同程度的阴雨天气,如果收割不及时,或收割后不能及时脱粒晒干等,都有可能发生霉烂发芽,遭受不应有的损失。发过芽的麦粒,不但不适于作种子,也不适于粮食加工,甚至不能食用。1977年北京郊区在麦收期间连续阴雨,使不少社队的小麦发芽霉烂,不仅粒重减轻,品质变劣,严重的基本无收成;
China’s vast wheat area, except Qinghai and Xinjiang wheat harvest season dry, sunny, the temperature is low, most other wheat areas, are likely to encounter varying degrees of rainy weather, if the harvest is not timely, or after harvest can not be timely Threshing, drying, etc., are likely to germinate, suffer undue losses. Seeds of wheat germinated, not only not suitable for seed, it is not suitable for food processing, or even can not eat. In 1977, the continuous rainy and rainy conditions in the suburbs of Beijing during the wheat harvest caused a lot of clubs to sprout mildew, which not only reduced the grain weight and worsened their quality, but also had serious and basically no harvest.