晚稻在孕穗至抽穗开花阶段,抗寒能力较弱,尤以小孢子期和抽穗开花期对温度的反应最为敏感,若遇到冷空气南下袭击,花器官发育不良,不能正常开花散粉,结实率下降,容易造成减产。因此,寒露风是我区晚稻主要气象灾害之一。为了摸清寒露风危害晚稻的规律,找出御防的方法,近年来,我站对寒露风危害晚稻的气象指标,产生空 Late rice in the booting stage to the stage of heading and flowering, cold-resistant ability is weak, especially in the microspore stage and heading and flowering of the most sensitive to temperature, if the cold air attack south, flower organ dysplasia, can not flowering powder, seed setting rate Fall, easily lead to cut. Therefore, the cold dew wind is one of the major meteorological disasters late rice in our region. In order to find out the cold dew and endanger the law of late rice, to find out the method of imperialism, in recent years, I stand on the cold dew late rice weather indicators, resulting in empty