稻茬麥田不同除草劑1次封殺化除的效果與安全性

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中圖分類(lèi)號(hào)： S451.22+1 文獻(xiàn)標(biāo)志碼：A 文章編號(hào)：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 號(hào) 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，受稻麥連作栽種方式改變、極端天氣頻發(fā)、單一作用類(lèi)型除草劑長(zhǎng)期連續(xù)使用等因素影響，稻茬麥田雜草群落演替加快，雜草發(fā)生種類(lèi)多、密度大、出苗時(shí)間長(zhǎng)，嚴(yán)重制約稻茬小麥的高產(chǎn)優(yōu)質(zhì)生產(chǎn)[1]。（剩余7227字）