Korean Journal of Agricultural Science (농업과학연구)

Institute of Agricultural Science, CNU (충남대학교 농업과학연구소)
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Herbicidal efficacy of various formulations and application timings of imazosulfuron+fentrazamide mixtures in rice

벼 재배에서 imazosulfuron+fentrazamide 합제의 제형 및 처리시기에 따른 제초활성

  • Kang, Kwang Sik (Dongbangagro, Technical Research Institute) ;
  • Won, Ok Jae (Department of Crop Science, Chungnam National University) ;
  • Park, Su Hyuk (Department of Crop Science, Chungnam National University) ;
  • Eom, Min Yong (Department of Crop Science, Chungnam National University) ;
  • Hwang, Ki Seon (Department of Crop Science, Chungnam National University) ;
  • Suh, Su Jeong (Department of Crop Science, Chungnam National University) ;
  • Pyon, Jong Yeong (ReSEAT Program, Korea Institute of Science and Technology Information) ;
  • Park, Kee Woong (Department of Crop Science, Chungnam National University)
  • 강광식 ((주)동방아그로 기술연구소) ;
  • 원옥재 (충남대학교 식물자원학과) ;
  • 박수혁 (충남대학교 식물자원학과) ;
  • 엄민용 (충남대학교 식물자원학과) ;
  • 황기선 (충남대학교 식물자원학과) ;
  • 서수정 (충남대학교 식물자원학과) ;
  • 변종영 (한국과학기술정보연구원) ;
  • 박기웅 (충남대학교 식물자원학과)
  • Received : 2014.03.10
  • Accepted : 2014.03.31
  • Published : 2014.03.31
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Abstract

This study was conducted to evaluate the efficacy of formulations and application timings of imazosulfuron+fentrazamide in rice field. Weeding efficacy of imazosulfuron+fentrazamide SC (75+300 g a.i./ha) was more than 95% except Bidens tripartita. The efficacy of this formulation was not related to its formulations but was highly related to application timing. Herbicide application before 5 days after transplanting was best timing to get a maximum weed control. Systemic application before and after transplanting was much higher than single application for weed control. Second leaf stage of Echinochloa spp. and sulfonylurea resistant Monochoria vaginalis was controled over 90% in the imazosulfuron+fentrazamide SC (75+300 g a.i./ha). Based on these data, imazosulfuron+fentrazamide can be applied to provide effective weed control especially in the field infested with herbicide resistant M. vaginalis.

Keywords

References

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