玉米弯孢菌叶斑病发病规律及影响因子研究  

Studies on the Occurrence Regularity of Maize Curvularia Leaf Spot Disease

作　　者：臧少先[1] 张义奇[1] 石丽军[1] 狄继革[1] 赵来顺[1] 

机构地区：[1]保定职业技术学院,河北保定071051

出　　处：《河北农业科学》2005年第2期7-11,共5页Journal of Hebei Agricultural Sciences

摘　　要：2000～2003年对玉米弯孢菌叶斑病的田间发生消长规律及其主要影响因子进行了研究,明确了田间病残体是玉米弯孢菌叶斑病初侵染来源;播种期、施氮肥量、前茬作物和气象因子都会对该病害的发生程度产生影响;提出了以清除病残体为主,化学防治为辅的综合防治措施。The occurrence regularity of curvularia leaf spot and influence factors were investigated in 2000~2003. Results indicated that the diseased plant in field was the initial infestation resource of curvularia leaf spot. Sowing stage, nitrogen content in the soil, rotation crops and weather factor had influences on the occurrence of this disease. The integrated control strategies were put forward through cleaning the field, removing the diseased plant and chemical control.

关 键 词：玉米弯孢菌叶斑病 影响因子 发病规律 发生消长规律 综合防治措施 2003年 初侵染来源 发生程度 气象因子 前茬作物 化学防治 病残体 播种期 氮肥量 田间 病害 

分 类 号：S435.131.4[农业科学—农业昆虫与害虫防治] S157.1[农业科学—植物保护]