摘要
为筛选防治小麦中后期病害的药剂组合,本试验分别在其拔节孕穗期、抽穗扬花期和扬花盛期施用18.7%丙环·嘧菌酯悬浮剂(扬穗)等7种新型药剂和50%苯甲·丙环唑水乳剂(颖越)等6种常规药剂,以不施用药剂为空白对照。调查其对小麦中后期赤霉病等3种病害的防控效果,并观测小麦安全性和产量。结果表明,不同药剂处理组合在试验剂量下对小麦生长安全,对小麦中后期赤霉病、白粉病和锈病有较好的防治效果,增产效果较好,其中T2处理(拔节孕穗期施扬穗750 mL/hm^(2)+力承300 mL/hm^(2)+阿立卡150 mL/hm^(2)+益施帮750 mL/hm^(2);抽穗扬花期施麦甜900 mL/hm^(2)+麦甜伴侣600 mL/hm^(2)+阿立卡150 mL/hm^(2)+益施多金750 mL/hm^(2);扬花盛期施麦甜900 mL/hm^(2)+麦甜伴侣600 mL/hm^(2)+益施多金750 mL/hm^(2))防效最好,小麦产量最高。综上,在小麦赤霉病常发区通过不同药剂轮换施用,可有效防治小麦病害,延缓其抗药性的产生。
To screen out the most efficient combination of control agents for the prevention and control of wheat diseases in the middle to late stages,7 new agents such as 18.7%propyrimidin suspension(Yangsui)and 6 conventional agents such as 50%benzoyl propiconazole aqueous emulsion(Yingyue)were applied at jointing booting stage,heading and flowering stage and blooming stage,respectively,with no application of drugs as blank control.The prevention and control effects of Fusarium head blight in the middle to late stage of wheat were investigated,and the safety and yield of wheat were observed.The results showed that each treatment combination was safe for wheat growth under experimental doses,had good control on scab,powdery mildew and rust in the middle to later stages of wheat,and had good yield increase effect.Among them,the T2 treatment(Jointing and booting stage used Yangsui 750 mL/hm^(2)+Licheng 300 mL/hm^(2)+Alika 150 mL/hm^(2)+Yishibang 750 mL/hm^(2);Heading and flowering used Maitian 900 mL/hm^(2)+Maitian partner 600 mL/hm^(2)+Alika 150 mL/hm^(2)+Yishiduojin 750 mL/hm^(2);Flowering used Maitian 900 mL/hm^(2)+Maitian partner 600 mL/hm^(2)+Yishiduojin 750 mL/hm^(2))had the best control effect and the highest wheat yield.In conclusion,different agents were used in the common areas of wheat Fusarium head blight could effectively control wheat disease and delay the development of its drug resistance.
作者
郑文
王军
金清
章青青
赵华筠
ZHENG Wen;WANG Jun;JIN Qing;ZHANG Qingqing;ZHAO Huajun(Nanqiao District Agricultural and Rural Technology Promotion Center,Chuzhou 239001,China)
出处
《安徽农学通报》
2024年第23期17-21,共5页
Anhui Agricultural Science Bulletin
关键词
小麦中后期病害
组合药剂
防效
小麦产量
wheat mid to late stage diseases
combination drug
preventive effect
wheat yield
