稻茬麦田不同除草剂1次封杀化除的效果与安全性
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中图分类号： S451.22+1 文献标志码：A 文章编号：1003-935X（2025）02-0046-07
Efficacy and Selectivity of Different Herbicides Combinations for One - Time Application at the Pre -/Post - Emergent stages inRiceStubble WheatFields
WANG Ke 1 ，ZHU Axiu²，LI Wenyao³，WU Jiawen²，SUN Yuchen4，XUE Jing5， WANG Likun4，ZHOU Jinxin4 ， WANG Hongchun1 （1. Institute of Plant Protection，Jiangsu Academyof Agricultural Sciences，Nanjing 21oo14，China; 2. Jiangsu Plant Protection and Quarantine Station，Nanjing 21ooo3，China; 3.ScholofEcologyandApliedeteorology，anjing UniversityofInformationScience&Technology，Nanjing4，Cina; 4. Xinghua Modern Agricultural Development Service Center in Jiangsu Province，Xinghua 2257oo，China; 5. College of Life Sciences，Anhui Normal University，Wuhu 2410oO，China）
Abstract：To screen out suitable herbicides combinationsfor one-time applicationat the pre-/post -emergent stages inricestubblewheatfields，fieldplotexperiments wereconducted inXinghua City，JiangsuProvince，from2O23to2024， using Ningmai1astheprimarywheatcultivar.A totalof1O treatments combining pre-emergent herbicidesand postemergent herbicideswereestablished.Theefficacyandselectivityof herbicides combinations，primarily containing activeingredients suchasisoproturon，pretilachlor，diflufenican，andflufenacet，onweedsinricestubble wheatfields were assessed.The results indicated that，during the approximately2-leaf stage of wheat and Poaceae weeds，a single spray application of isoproturon 50% WP at 120 g/667 m² + pretilachlor 50% EC at 100 mL/667 m² + diflufenican 号 50% WPat 20g/667m2 ，diflufenican·isoproturon 48% SC at 150 mL/667 m2Ω+ flufenacet 41% SCat 20mL/667m²，flufenacet ⋅⋅ diflufenican ⋅⋅ furoxypyr 33% SC at 80 mL/667m² + mesosulfuron-methyl 30g/L OD at 20 mL/667 m²，or flufenacet·diflufenican 35% SC at 80 mL/667 m² + flucarbazone-sodium 70% WG at 4 g/667 m² achieved over 95% of plant and fresh weight control effects on aboveground parts on weeds such as Beckmannia syzigachne （Steud.）Fernald，Alopecurus aequalis Sobol.，Galium spurium L.，Myosoton aquaticum （L.）Moench.，and total weedsin rice stubble wheat fields，while ensuring selectivity towheat.
Key words：rice stubble wheat fields;herbicides combination;pre-/post-emergent herbicides applied once;efficacy; selectivity
目前，受稻麦连作栽种方式改变、极端天气频发、单一作用类型除草剂长期连续使用等因素影响，稻茬麦田杂草群落演替加快，杂草发生种类多、密度大、出苗时间长，严重制约稻茬小麦的高产优质生产[1]。（剩余7227字）
