早春冻害是我省小麦生产上存在的一个重要问题。我省小麦在适宜的播种期(10月下旬—11月上旬)里,早播比迟播产量高,但如遇冬季温度较高,又有“倒春寒”的年份,则早播的受冻害严重,导致减产。 1966年2月底我省出现严重“倒春寒”,小麦受冻成灾。我们3月17日对几个主要推广 Frost damage in early spring is an important issue in wheat production in our province. In our province, wheat in suitable sowing period (late October-early November) has a higher yield of early-sowing than late sowing, but in the case of higher winter temperatures and “late-spring” years, the early-sowing is severely harmed , Resulting in reduced production. By the end of February 1966, there was a serious “late spring cold” in our province, causing the wheat to be frozen and harmed. We March 17 on several major promotions