摘要
水稻纹枯病属于中心式传播型。病菌的菌核及病害在田间水平分布不均匀，稻田中央菌核量最少，发病程度较轻；稻田下风池角和池边菌核量较多，发病程度较重。深水串灌未晒田和排水不良的深水地块发病严重。
Rice sheath blight were central disseminate pattern diseases in field.The horizontal distribution of the fungus sclerotia and diseases were not proportional in field. The fungus sclerotia quantity and incidence of a diseaseswere minimum in middle of field, and it was maximum in borderland. The incidenceof a disease was maximum in water depths and a good many of nitrogenous fertilizer.
出处
《黑龙江八一农垦大学学报》
1998年第4期11-15,共5页
journal of heilongjiang bayi agricultural university
关键词
水稻
纹枯病
分布规律
Rice
Pellicularia sasakii
Rhizoctonia solani
Distribution regularity
