晚春霜是在初春气温回暖时节,受北方强冷空气南下影响,短期内近地面气温骤降至0℃以下,使作物遭受冻害或死亡的一种恶劣天气现象,是春季蔬菜生产的重大灾害,一般发生在3—4月早熟蔬菜定植以后。 Late spring frost is in the early spring temperatures warmer season, affected by strong cold air north of the north, near-surface temperatures in the short term the temperature dropped to below 0 ℃, so that crops suffer frostbite or death of a severe weather phenomenon is a major spring vegetable production disaster, Generally occurs in March-April precocious vegetable colonization later.