戊唑醇不同处理方式对夏玉米褐斑病空间分布及产量影响  

Effect of Tebuconazole on the Spatial Distribution of Corn Brown Spot and the Yield to Summer Maize

作　　者：李俊虎[1] 姜兴印[1] 王燕[1] 戈大庆[1] 聂乐兴[1] 吴淑华[1] 

机构地区：[1]山东农业大学植物保护学院,山东泰安271018

出　　处：《农药》2010年第7期533-535,542,共4页Agrochemicals

基　　金："十一.五"科技支撑计划项目(2007BAD31B04)

摘　　要：在田间小区试验条件下,研究了戊唑醇拌种(有效成分1g/kg种子)和5～9叶期喷雾(193.5ga.i./hm2)等不同处理方式对玉米褐斑病发生的空间分布影响、防效和增产作用。结果表明:戊唑醇在玉米5～9叶期喷雾处理能有效抑制玉米褐斑病的发生,发病叶片均控制在第5展开叶内,控制效果显著好于拌种处理,尤其是8叶期喷雾处理防效达94.2%,处理小区玉米增产效果明显,增产率达33.2%,可见8叶期为防治玉米褐斑病的最佳用药时期。Field plot experiment was conducted to evaluate the effects of different application methods of tebuconazole on the spatial distribution,the control of corn brown spot(Physoderma maydis) ,and the increase of maize yields.Application methods of tebuconazole were coating seeds(active ingredient 1 g/kg seeds) and spraying it at 5 to 9 leaf stage(active ingredient 193.5 g/ha) .Results indicated that spraying tebuconazole at 5 to 9 leaf stage could suppress the occurrence of corn brown spot by the first five lea...

关 键 词：戊唑醇 玉米褐斑病 施药方式 空间分布 产量 

分 类 号：S435.131[农业科学—农业昆虫与害虫防治]