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水稻在各个生育阶段会因不良环境条件,或栽培管理不当而引起种种生理障碍。常见的主要有烂秧、发僵、早穗、早衰、翘稻头以及空、秕粒等,每年天津市华明镇发现水稻存在生理障碍的面积约8000亩,不仅影响水稻正常生长,同时严重影响产量和品质。一、烂秧烂秧的诊断: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
Rice at various stages of development will be due to adverse environmental conditions, or improper cultivation and management caused by a variety of physiological disorders. Commonly there are rotten seedlings, stiff hair, early spike, premature senility, Alice head and empty, nodules, etc. Each year, Huaming Town, Tianjin found that rice has physiological barriers to an area of about 8000 acres, not only affects the normal growth of rice, while serious Affect yield and quality. First, rotten seedling Rotten seedling diagnosis: Rotten seedlings of rice is seed, sprouts 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 refers to poor environment induced Pythium, mulberry mold, Fusarium, Rhizoctonia and other weaknesses