植物保护2026，Vol.52Issue(2)：398-404,7.DOI:10.16688/j.zwbh.2025143
氟砜草胺对稻田杂草的除草活性及田间药效评价
Evaluation of herbicidal activity and field efficacy of flusulfinam against weeds in rice fields
摘要
Abstract
Flusulfinam is a novel hydroxyphenyl pyruvate dioxygenase(HPPD)-inhibiting herbicide developed by Shandong Qingyuan Agrochemical Crop Science Co.,Ltd.To assess its application potential in paddy fields,whole-plant bioassays were conducted to evaluate its bioactivity against dominant weeds in rice fields and its effects on rice growth.The results indicated that flusulfinam exhibited high herbicidal activity against Echinochloa crus-galli,Digitaria sanguinalis,Ludwigia prostrata,Pontederia vaginalis,Eclipta prostrata,Cyperus difformis and Cyperus iria,with GR50 values of 8.69,9.50,11.70,26.43,12.15,10.89 and 9.85 g/hm2,and GR90 values of 30.05,42.86,63.16,61.39,65.86,52.26 and 48.67 g/hm2(active ingredient,the same below),respectively.Additionally,flusulfinam demonstrated good inhibitory effects on Leptochloa chinensis and Ammannia auriculata,with GR50 values of 34.37,22.94 g/hm2,and GR90 values of 120.51 and 113.61 g/hm2,respectively.Safety tests showed that flusulfinam was safe to rice when applied at rates of 90,180,and 360 g/hm2 at the 2-leaf to 2-leaf-1·heart stages.In field trials,application of flusulfinam at the 2-3 leaf stage of weeds at 72 g/hm2 achieved control efficacies exceeding 93％against E.crus-galli,D.sanguinalis,and C.difformis 28 days after application,while application at 108 g/hm2 achieved nearly 90％control efficacy against A.auriculata.Compared with the untreated control,application of flusulfinam at 72-180 g/hm2 increased rice yields by 14.2％—18.0％.关键词
氟砜草胺/水稻/HPPD抑制剂/抗性杂草Key words
flusulfinam/rice/HPPD-inhibiting herbicide/resistant weeds分类
农业科技引用本文复制引用
范洁群,陈谊君,左军,陈卫兵,魏丽,李涛..氟砜草胺对稻田杂草的除草活性及田间药效评价[J].植物保护,2026,52(2):398-404,7.基金项目
上海市农业科技创新项目(沪农科(I2023008)) （沪农科(I2023008）
上海市农业科学院卓越团队建设计划(沪农科卓(2022)017) （沪农科卓(2022）
