不同组合用药处理对小麦赤霉病及DON毒素影响  

Controlling efficacy of different fungicide combination for Fusarium head blight and deoxynivalenol toxin

作　　者：董红刚 王晓芸 史晓莉 陆彦 吴佳文 DONG Honggang;WANG Xiaoyun;SHI Xiaoli;LU Yan;WU Jiawen(Agricultural Technology Promotion Center of Hanjiang District,Yangzhou 225009,Jiangsu,China;Syngenta(China)Investment Co.,Ltd.,Shanghai 200120,China;Agricultural Technology Promotion Center of Jiangdu District,Yangzhou 225202,Jiangsu,China;Plant Protection and Quarantine Station of Zhangjiagang Station,Zhangjiagang 215600,Jiangsu,China;Plant Protection and Quarantine Station of Jiangsu Province,Nanjing 210036,Jiangsu,China)

机构地区：[1]扬州市邗江区农作物技术推广中心,江苏扬州225009 [2]先正达(中国)投资有限公司,上海200120 [3]扬州市江都区农业技术推广中心,江苏扬州225202 [4]张家港市植保植检站,江苏苏州215600 [5]江苏省植物保护植物检疫站,江苏南京210036

出　　处：《世界农药》2021年第9期43-48,共6页World Pesticide

基　　金：国家重点研发计划(2018YFD0200505);江苏省现代农业(小麦)产业技术体系绿色防控创新团队(JATS[2020]310)江苏现代农业-重点及面上项目(BE2018378)。

摘　　要：通过不同杀菌剂组合对小麦赤霉病防治效果、小麦产量及DON毒素控制效果的试验研究,明确不同杀菌剂组合在小麦赤霉病与毒素控制中的价值。结果表明,在小麦扬花初期使用200 g/L氟唑菌酰羟胺SC 60 mL+25%丙环唑SC 40 mL,8 d后又使用200 g/L氟唑菌酰羟胺SC 60 mL+25%丙环唑SC 40 mL的处理和扬花初期使用200 g/L氟唑菌酰羟胺SC 50 mL+25%丙环唑SC 32.5 mL,8 d后再使用48%氰烯菌酯·戊唑醇SC 50 mL的处理对小麦赤霉病及DON毒素的总体控制效果良好,2个处理对赤霉病的防效分别为94.59%、93.76%,对DON毒素的控制效果分别为91.76%、94.41%.,并对小麦都有一定的增产效果,小麦容重增幅达4.57%、3.74%,千粒重增幅为18.41%、16.14%,单位面积产量增幅为38.61%、33.09%。综合抗药性治理和科学用药等因素分析,在小麦抽穗扬花初期先使用200 g/L氟唑菌酰羟胺SC 50 mL+25%丙环唑SC 32.5 mL,8 d后再使用48%氰烯菌酯·戊唑醇SC 50 mL配方是有效控制小麦赤霉病、降低DON毒素的良好用药方式,保障小麦产量和质量安全。To clarify the control effect of different fungicide combination for Fusarium head blight,field trials have been carried out and assessments on Fusarium head blight incidence rate,grain yield and the content of DON toxin were conducted.At the beginning of heading and flowering period,pydiflumtofen 200 g/L SC 60 mL+propiconazole 25%SC 40 mL were applied in plot A(acreage 667 m2),and pydiflumtofen 200 g/L SC 50 mL+propiconazole 25%SC 32.5 mL for plot B(acreage 667 m2).After 8 days,apply pydiflumtofen 200 g/L SC 60 mL+propiconazole 25%SC 40 mL again in plot A,phenamacril·tebuconazole 48%SC 50 mL in plot B.The result shows that these two combination of treatments both had well control efficacy for Fusarium head blight and DON toxin,the control effect were 94.59%and 93.76%,the deduce rate were 91.76%and 94.41%,the increment of grain yield volume weight were 4.57%and 3.74%,the increment of Thousand Kernel Weight were 18.41%and 16.14%,the increment of field yield were 38.61%and 33.09%.The treatment which is pydiflumetofen 200 g/L SC 50 mL+propiconazol 25%SC 32.5 mL was applied at the beginning of heading and flowering period and after 8 days phenamacril·tebuconazole 48%SC 50 mL was applied can has a good control on Fusarium head blight and DON toxin.Meanwhile,the treatment is safe for wheat production.

关 键 词：小麦赤霉病 氟唑菌酰羟胺 DON毒素 防治效果 

分 类 号：TQ455[化学工程—农药化工]