不同复配药剂对小麦穗期病害的控害提质效果  

Control Efficacy and Economic Benefits of Different Composite Fungicides on Wheat Diseases at Heading Stage

作　　者：吴惠秋 刘晓娜 杨爱国 张海燕 李爱国 许莉 王琪[2] 刘宝慧 WU Huiqiu;LIU Xiaona;YANG Aiguo;ZHANG Haiyan;LI Aiguo;XU Li;WANG Qi;LIU Baohui(Plant Protection and Inspection Station of Jiangyan District,Taizhou 225500,China;Nanjing Agricultural University,Nanjing 210095,China)

机构地区：[1]泰州市姜堰区植保植检站,江苏泰州225500 [2]南京农业大学,江苏南京210095

出　　处：《大麦与谷类科学》2023年第1期53-56,共4页Barley and Cereal Sciences

摘　　要：为了明确40%丙硫·戊唑醇SC、32%氟啶·丙硫SC、48%氰烯·戊唑醇SC、200 g/L氟唑菌酰羟胺SC+250 g/L丙环唑EC、50%戊唑·百菌清SC对小麦穗期赤霉病、白粉病、锈病的防病、保产、控毒效果,开展了田间试验。结果表明:32%氟啶·丙硫SC50 g/667 m^(2)、40%丙硫·戊唑醇SC 50 g/667 m^(2)、50%戊唑·百菌清SC 50 g/667 m^(2)不但对小麦赤霉病的防效理想,对呕吐毒素(DON)控制效果优异(90%以上),而且对小麦白粉病、锈病有较好的兼治效果;产量分别较对照增产73.23%、58.82%、53.84%;投入与产出比分别为1︰14.3、1︰13.7、1︰21.8。以上药剂配方可作为小麦赤霉病等穗期病害绿色减量控害提质增效的优选方案。A field trial was carried out to investigate 40%prothioconazole·tebuconazole SC,32%fluazinam·prothioconazole SC,48%cyanoprost·tebuconazole SC,200 g/L fluazolamide SC+250 g/L propiconazole EC,and 50%tebuconazole·chlorothalonil SC for their efficacy in controlling wheat scab,powdery mildew,and rust at heading stage,as well as their economic benefits.As a result,32%fluazinam·prothioconazole SC at the application rate of 50 g/667 m^(2),40%prothioconazole·tebuconazole SC at the rate of50 g/667 m^(2),and 50%tebuconazole·chlorothalonil SC at the rate of 50 g/667 m^(2)not only very significantly inhibited wheat head blight but also remarkably reduced the content of DON toxin by over 90%,and they also produced noticeably inhibitory effects on wheat powdery mildew and rust,increasing the yield by 73.23%,58.82%,and 53.84%,respectively,compared with the control,whose ratios of input to output stood at 1:14.3,1:13.7,and 1:21.8,respectively.In summary,the above fungicides have significant effects of controlling multiple wheat diseases and improving economic benefits;hence,they are recommended for controlling wheat diseases at heading stage such as wheat head blight in an environmentally friendly manner,and improving wheat yield and economic benefits.

关 键 词：小麦赤霉病 防效 产量 毒素 

分 类 号：S512.1[农业科学—作物学]