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1980年我省小麦冻害严重,招致减产。过去我省也曾多次发生冻害,影响夏收,尤以北部麦区减产最甚。因此,有必要对多年冻害情况进行分析,探讨冻害规律,提出预防措施。唐山地区处于北方晚熟麦区的东北部边缘,属温带大陆性季风气侯,冬季寒冷,春季干燥,与小麦安全越冬关系密切,在一般非冻害年份,小麦也常因冻伤,死苗5%左
In 1980, severe damage to wheat in our province led to a cut in production. In the past, many frost damage occurred in our province, affecting the summer harvest, especially in the northern wheat area. Therefore, it is necessary to analyze the situation of perennial frost damage, discuss the law of frost damage and put forward the precautionary measures. Tangshan is located on the northeastern edge of northern late maturing wheat area. It belongs to the temperate continental monsoon climate. It is cold in winter and dry in spring, which is closely related to the safety of winter wheat. In general non-freezing-thawing years,