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一、烂秧的诊断水稻烂秧是种子、幼芽和幼苗在秧田期烂种、烂芽和死苗的总称,可分为生理性和传染性两大类。生理性烂秧纯属不良环境条件造成的病害,传染性烂秧则多指不良环境诱致腐霉菌、绵霉菌、镰刀菌、丝核菌等弱性寄生菌为害而引起的病害。大面积的烂芽和死苗多属于传染性病害。烂秧主要发生在幼苗期,包括烂种、烂芽和死苗。烂秧是指种谷落田后,不发芽
First, rotten seedling diagnosis Rotten seedlings of rice, seedlings and seedlings in the seedling rotted species, rotten buds and dead seedlings can be divided into two categories of physiological and infectious. Physiological rotten seedlings are purely caused by adverse environmental conditions, infectious rotten seedlings are mostly caused by poor environment induced Pythium, Mucor, Fusarium, Rhizoctonia and other weak parasitic diseases caused. Large areas of rotten buds and dead seedlings are mostly infectious diseases. Rotten seedlings occur mainly in seedling stage, including rotten, rotten buds and dead seedlings. Rotten seedling refers to the kind of field after the fall, does not germinate