南京市稻茬麥田雜草1次封殺化除配方的藥效和安全性

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關(guān)鍵詞：稻茬麥田；封殺化除配方；藥效；安全性；南京市中圖分類號： S451.22+1 ;S482.4 文獻(xiàn)標(biāo)志碼：A 文章編號：1003-935X（2025）01-0050-07

Efficacy of One - Time Application Scheme for Pre - and Post - Emergent Herbicides and Their Selectivity to Wheat in Rice Stubble Wheat Fields of Nanjing

SUN Ting1，ZHANG Zichang2，WANG Jiansheng3，ZHU Axiu4，GU Tao2，WANG Ke2 XUE Jing5，WU Jiawen4，WANG Hongchun2 （1.Agricultural and Rural Affirs Bureau of Jiangning District，Nanjing City，Nanjing 2111Oo，China;

2.Institute of Plant Protection，Jiangsu Academy of Agricultural Sciences，Nanjing 210o14，China;

3.Plant Protection and Quarantine Station of Nanjing，Nanjing 21Ooo8，China;

4.Plant Protection and Quarantine Station of Jiangsu Province，Nanjing 21Oo36，China;

5.CollegeofLifeSciences，AnhuiNormalUniversity，Hefei23oooO，China）

Abstract：Toidentifysuitablechemicalcontrol formulationsfor weedmanagementinricestubblewheat fieldsin Nanjing，we setupfive diferent herbicides mixtures，and taked manual weeding andanuntreated groupascontrol to carryout a field plot experiment，including diflufenican·isoproturon 48% SC + mesosulfuron- methyl 30g/L OD， diflufenican·isoproturon 48% SC + pinoxaden 5% EC，flufenacet ?? diflufenican 35% SC + flucarbazone - Na 70% （20 WG，diflufenican·isoproturon 48% SC + flucarbazone -Na 70% WG，and flufenacet·diflufenican·flurtamone 33% （204號 SC + flucarbazone-Na7O%WG.This experiment determined effects of these herbicidesmixtures on weeds and their selectivelevels towheat.Theresultsshowedthatplantcontrolefectsandfresh weightcontroleffctsoffiveherbicides mixtures mentioned above aplied once during post - emergence stage on Beckmannia syzigachne （Steud.）Fern.， Alopecurus japonicus Steud.，A.aequalis Sobol.，Geranium carolinianumL.，and Stellria media（L.）Cyr.，were all more than 93% ，and those of total weeds were more than 95% at around leaf stage of wheat，and their wheat yields were all above 424 kg/667 m2 .The tested herbicides applied once effectively controlled weeds throughout the wheat growing season inrice stubble fields，was selectivity to wheat，and demonstrated excellnt yield protection effects.

Key words：rice stubble wheat fields;one-time appication scheme for pre-and post-emergent herbicides;effcacy; selectivity; Nanjing City

雜草不僅與小麥爭奪營養(yǎng)、光照和水分，也會加重病蟲害的發(fā)生，是小麥穩(wěn)產(chǎn)豐產(chǎn)的重要制約因素之一。（剩余7096字）