文档介绍：河西走廊制种玉米褐斑病的田间防效测定陈广泉 1 ,陈占伟 1 ,邢会琴 1 ,张建超 2 ,王多成 3 ,费永祥 2 ( 1 河西学院农业与生物技术学院, 甘肃张掖 734000 ; 2 张掖市植保植检站, 甘肃张掖 734000 ; 3 张掖市多成种业有限责任公司,甘肃张掖 734000 ) 摘要: 目前在生产田中控制褐斑病的关键是发病初期的药剂防治, 所以应加强田间病情调查, 把握好防病时期, 选用高效的杀菌剂, 以减少该病引起的损失。本实验选用多种杀菌剂, 通过药效试验比较各种杀菌剂的防治效果, 明确其对产量的影响, 综合评价其田间效果。为筛选出适合河西走廊气候条件下的玉米褐斑病高效杀菌剂提供依据,同时加快当地玉米褐斑病的防治工作进展。关键词: 玉米褐斑病;杀菌剂;病情指数;田间防效 Hexi Corridor seed corn brown spot of field efficacy determination Chen Guangquan 1, Chen Zhanwei 1, Xing Huiqin 1, Zhang Jianchao 2, Wang Duocheng 3, Fei Yongxiang 2, ( 1 College of agriculture and biotechnology, He Xi University, Gansu Zhangye 734000; 2 Zhangye plant protection and quarantine station, Gansu Zhangye 734000; 3 Zhangye city into a limited pany, Gansu Zhangye 734000) Abstract: the key control spot field production is the chemical control of early onset, so should strengthen the field investigation, grasp the control period, choose effective antimicrobial agent, in order to reduce the losses caused by the disease. This experiment chooses several fungicides, control effect by experiment parison of various fungicides, clarify its effect on yield, comprehensive evaluation of the field effect. In order to select suitable for Corn Brown Spot efficient fungicide climatic conditions in Hexi Corridor and provide the basis for, and accelerate the progress of local maize leaf spot disease prevention and control work. Keywords: Cor