近儿年来,本地在3月下旬前后,常因气温陡降(最低气温为-38℃左右,距地面10cm处最低地温为-3.9℃左右),使大面积小麦严重遭受春霜冷冻危害,小麦幼穗冻死率一般10％左右,个别早播的春性小麦,其幼穗冻死率达55％～60％。对此,本站对遭受冻害的小麦进行叶面喷肥,收到了显著的效果。 In recent years, around the end of March, the local area is often severely affected by spring frost freezing due to the sudden drop in temperature (the lowest temperature is about -38 ℃ and the lowest ground temperature is about -3.9 ℃ at 10cm above the ground) Early frostbite mortality rate of about 10%, individual early spring wheat, its fry mortality of 55% to 60%. In response, the site suffered frost damage of wheat foliar spray, received a significant effect.