不同除草剂组合对小麦田多花黑麦草的防除效果  

Control Effects of Different Herbicides Combinations on Lolium multiflorum Lamk.in Wheat Fields

作　　者：刘会彪 田宝华 贾少锋 高兴祥[2] LIU Huibiao;TIAN Baohua;JIA Shaofeng;GAO Xingxiang(Syngenta(China)Investment Co.,Ltd,Shanghai 200126,China;Institute of Plant Protection,Shandong Academy of Agricultural Sciences,Ji’nan 250100,China)

机构地区：[1]先正达(中国)投资有限公司,上海200126 [2]山东省农业科学院植物保护研究所,山东济南250100

出　　处：《杂草学报》2024年第3期51-59,共9页Journal of Weed Science

基　　金：国家重点研发计划(编号:2023YFD1400500)。

摘　　要：为了探索麦田多花黑麦草高效防治药剂,于2021—2022年在河南省驻马店市驿城区小麦田共设置17个不同除草剂组合处理进行药效探索试验。结果表明,封闭除草防效最好的是500 g/L丙草胺乳油100 mL/667 m^(2)+50%异丙隆悬浮剂150 mL/667 m^(2),35%氟噻·吡氟悬浮剂77 mL/667 m^(2)和500 g/L丙草胺乳油200 mL/667 m^(2)封闭效果无显著差异;苗后茎叶喷雾防效最好的是5%唑啉草酯乳油100 mL/667 m^(2)+50%异丙隆悬浮剂150 mL/667 m^(2)+含氨基酸水溶肥50 mL/667 m^(2),其次为5%唑啉草酯乳油100 mL/667 m^(2)+50%异丙隆悬浮剂150 mL/667 m^(2),再者为5%唑啉草酯乳油200 mL/667 m^(2)处理;封闭用药+苗后茎叶喷雾用药处理防效最好的为35%氟噻·吡氟悬浮剂77 mL/667 m^(2)+5%唑啉草酯乳油100 mL/667 m^(2)+50%异丙隆悬浮剂150 mL/667 m^(2),其次为500 g/L丙草胺乳油100 mL/667 m^(2)+5%唑啉草酯乳油100mL/667 m^(2)+50%异丙隆悬浮剂150 mL/667 m^(2),再者为500 g/L丙草胺乳油100 mL/667 m^(2)+50%异丙隆悬浮剂150 mL/667 m^(2)+5%唑啉草酯乳油100 mL/667 m^(2)。综上所述,采用封闭+苗后茎叶喷雾方法,可以高效防治小麦田恶性杂草多花黑麦草。在药剂选择时,封闭可用丙草胺、丙草胺+异丙隆或氟噻·吡氟,苗后喷雾选择唑啉草酯或唑啉草酯+异丙隆,通过药剂合理搭配,科学指导麦田多花黑麦草的防治。A trial was carried out to explore effects of different herbicides on Lolium multiflorum Lamk.in wheat fields where 17 herbicides combinations were set up in Yicheng District,Zhumadian City,Henan Province in 2021-2022.The results showed that the best pre-emergent herbicide for weed control was pretilachlor 500 g/L EC at 100 mL/667 m^(2)+isoproturon 50%SC at 150 mL/667 m^(2),while pre-emergent effect of flufenacet·diflufenican 35%SC at 77 mL/667 m^(2)was not significantly different from that of pretilachlor 500 g/L EC at 200 mL/667 m^(2).The best post-emergent herbicide for weed control was pinoxaden 5%EC at 100 mL/667 m^(2)+isoproturon 50%SC at 150 mL/667 m^(2)+water-soluble fertilizer containing amino acids at 50 mL/667 m^(2),followed by pinoxaden 5%EC at 100 mL/667 m^(2)+isoproturon 50%SC at 150 mL/667 m^(2),and then pinoxaden 5%EC at 200 mL/667 m^(2).The best combination of pre-and post-emergent herbicides for weeds control were flufenacet·diflufenican 35%SC at 77 mL/667 m^(2)+pinoxaden 5%EC at 100 mL/667 m^(2)+isoproturon 50%SC at 150 mL/667 m^(2),followed by pretilachlor 500 g/L EC at 100 mL/667 m^(2)+pinoxaden 5%EC at 100 mL/667 m^(2)+isoproturon 50%SC at 150 mL/667 m^(2),and then pretilachlor 500 g/L EC at 100 mL/667 m^(2)+isoproturon 50%SC at 150 mL/667 m^(2)+pinoxaden 5%EC at 100 mL/667 m^(2).In summary,combination of pre-and post-emergent herbicides for efficient control of the invasive weed L.multiflorum in wheat fields.In the selection of herbicides,the pre-emergent herbicides could be used with pretilachlor,pretilachlor+isoproturon or flufenacet·diflufenican,and post-emergent herbicides were selected with pinoxaden or pinoxaden+isoproturon.By carefully selecting pre-and post-emergent herbicides and following scientific guidance,effective control of L.multiflorum in wheat fields could be achieved.

关 键 词：小麦 除草剂 唑啉草酯 多花黑麦草 丙草胺 防效 

分 类 号：S451.221[农业科学—植物保护]