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Fact-Finding Survey of Herbicide Use at Farmer's Level and Distribution of Herbicide Resistant Weeds in Paddy Field of Jeonbuk Province, Korea

전북지역 제초제 저항성 논 잡초 발생분포 및 제초제 사용실태

  • Cho, Seung-Hyun (Jeollabukdo Agricultural Research and Extension Services) ;
  • Kwon, Seog-Ju (Jeollabukdo Agricultural Research and Extension Services) ;
  • Song, Young-Eun (Jeollabukdo Agricultural Research and Extension Services) ;
  • Lee, Deok-Ryeol (Jeollabukdo Agricultural Research and Extension Services) ;
  • Song, Young-Ju (Jeollabukdo Agricultural Research and Extension Services) ;
  • Kim, Chung-Kon (Jeollabukdo Agricultural Research and Extension Services) ;
  • Lee, In-Yong (National Academy of Agricultural Science, RDA)
  • Received : 2014.11.14
  • Accepted : 2014.12.08
  • Published : 2014.12.31

Abstract

This study was conducted to obtain basis information for effective weed control by the fact-finding survey of herbicides use at farmer's level and distribution of herbicide resistant weeds in paddy field of Jeonbuk province, Korea. The distributions of major paddy field weeds and frequently used herbicide according to the survey were as follows. The dominant weeds in rice paddy field were Echinochloa crus-galli, Eleocharis kuroguwai, Scirpus juncoides, Monochoria vaginalis, etc.. Preferred herbicides widely used by farmers were ranked in the following order, early and middle treatment (48.0%), treatment before transplanting (36.7%) and foliar treatment (15.3%). The occurrence of herbicide-resistant weeds according to collected paddy soils was as follows. The occurring area of herbicide-resistant weeds was 24,413 ha, approximately 18.4% of rice cultivation area. Herbicide-resistant weeds were occurred in four species. The order of occurrence were Scirpus juncoides (39.0%) > Monochoria vaginalis (27.8%) > Echinochloa crus-galli (16.6%) and Cyperus difformis (16.6%). This information could be useful for estimation of future herbicide-resistant weed and establishment of herbicide-resistant weed control methods in Jeonbuk province, Korea.

Keywords

Herbicide-resistant weed;Jeonbuk;Paddy field;Weed control

Acknowledgement

Grant : Research Program for Agricultural Science & Technology Development

Supported by : National Academy of Agricultural Science

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