几种除草剂组合对机插田杂草的防治效果

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中图分类号 S451.21 文献标识码A 文章编号 1007-7731（2025）17-0080-04

DO1号10.16377/j.cnki.issn1007-7731.2025.17.020

Controleffectsofseveral herbicidecombinationsonweeds inmachine transplanted fields

HU Xianjin1DU Liang1YANG Mengchi1 WANG Gaolin²LI Chengzhong³ （ 1 Chizhou Guichi District Agricultural Technology Promotion Center， Chizhou 247Oo0， China; 2Wang Shiqing Family Farm of Chizhou，Chizhou 2470o0， China; 3Wangxing Family Farm of Chizhou， Chizhou 247000， China）

AbstractTo explore suitable herbicides for machine-transplanted ricefields，therice varieties Tailiangyou 1332 （test site1） and Weiliangyou 8612 （test site 2） were used as test subjects.12 herbicides，including 6% bensulfuronmethyl·pretilachlor·oxadiazon，were selected，witha blank treatmentasthecontrol.Thefolowingtreatments were applied： treatment1（ 6% bensulfuron-methyl·pretilachlor·oxadiazon at 7.5kg/hm2+6% quinclorac·pretilachlor·pyrazosulfuron-ethyl at 9 kg/hm²）;treatment2[ 35% oxadiargyl ·butachlor at 1.5 L/hm² +（19% triafamone at 0.5L/hm2 （20 +10% pyrazosulfuron-ethyl at 0.3kg/hm2） ]; treatment 3 （ 60% pendimethalin·butachlor at 3kg/hm2+ 60% bensulfuron-methyl at 75g/hm2）+2% bensulfuron-methyl·acetochlor at 4.5kg/hm2 ）; treatment 4 （ 37% oxadiargyl·butachlor ·oxaziclomefone at 1.35kg/hm2+40% pretilachlor ·oxadiargyl ⋅⋅ clomazone at 1.05kg/hm2 ）; treatment 5 （ 85% butachlor at 2.25kg/hm2+25% bensulfuron-methyl ⋅⋅ butachlor at 1.5kg/hm⋅4 ）.The safety of different treatments on rice growth was observed，and weed species were investigated to calculate weed density and control eficacy.The resultsshowed thatallherbicide treatments were relativelysafefor rice growth at normal application rates.The weeds in the paddy field belonged to1O familiesand13 species，with Poaceae，broadleaf weeds，and Cyperaceae accounting for 23.08% ， 61.54% ，and 15.38% ，respectively.Treatments1，2，3，and 5 exhibited high overall weed control efficacy and fresh weight control efficacy，with overall weed control efficacy exceeding 88% and fresh weight control efficacy exceeding 97% . Treatment 3 demonstrated excellnt control efficacy against Poaceae weeds，broadleaf weeds，and Cyperaceae weeds，all exceeding 84% .In summary，treatments1，2，3，and 5 are all suitable for weed control in machine-transplanted rice fields.

Keywords herbicide;machine transplanted fields;weeds;control effect：

水稻是安徽池州贵池区重要的粮食作物之一，其产量和质量受到多种因素的影响，其中杂草危害是一个关键因素。（剩余4249字）