冬小麦冻害死苗,在沧州地区不是有无问题,而是轻重之分。建国三十五年,平均三年一遇,尤其是七十年代末和八十年代初,冻害更加频繁,并有加重的趋势。1977、1980、1981和1984年、分别折实死苗面积为80万亩、108.2万亩、90.2万亩、111.7万亩(不包括沧州市和沧县)。今年冻害面积大、级别高、涉 Winter wheat cold damage dead seedlings in Cangzhou area is not without problems, but the severity of the points. Thirty-five years after the founding of the PRC, an average of once every three years, especially in the late seventies and early eighties, frost damage was more frequent and aggravated. In 1977, 1980, 1981 and 1984, the area of ​​800,000 mu, 1,082,000 mu, 912,000 mu and 1,117,000 mu (Excluding Cangzhou and Cangxian) were respectively converted into dead seedlings. Frost damage area this year, high level, involving