水稻纹枯病病丛率与病株率病情指数之间的关系李熙英，全顺子，张晶敏，金世锋（延边农学院）（蛟河种子公司）（汪清县农业局）水稻纹枯病（Ｒｈｉｚｏｃｔｏｎｉａｓｏｌａｎｉ）是世界各产稻区普遍发生的一种病害。近年来，随着施氮水平的提高，延边地区水田中也普遍发... Relationship between sheath blight rate and disease index of rice sheath blight Li Xiying, Quan Shunzi, Zhang Jingmin, Jin Shifeng (Jiaohe Seed Company) (Wangqing County Bureau of Agriculture) Rhizoctonia solani (Rhizoctonia solani) It is a common disease in various rice producing areas in the world. In recent years, with the improvement of nitrogen level, paddy fields in Yanbian are also commonly ...