近几年来,随着双季稻的发展和趸秧的推广,早稻插秧季节提前。插秧早,气温较低,若水肥管理不当,则影响水稻生育,而导致早稻赤枯病发生为害。特别是湖区和山区改种双季稻的地方,早稻发病较普遍,有些地方还比较严重;少数地方的中稻和晚稻也有发病的。 一、水稻赤枯病的类型 赤枯病是一种生理性病害,群众称为“坐蔸”、“发噤”、“发瘘”等。水稻发病后, In recent years, with the development of double cropping rice and the promotion of single seedling, the season of early rice replanting is advanced. Transplanting early, the temperature is low, if the improper management of water and fertilizer, then affect rice growth, which led to the occurrence of early rice blight damage. Especially in the lake areas and mountainous areas where double cropping of rice is changed, the incidence of early rice is more common, and in some places it is still relatively serious. In a few places, there are also cases of middle and late rice disease. First, the type of rice berry disease Blight is a physiological disease, the masses known as the “sit up”, “hair”, “fistula” and so on. After the onset of rice,