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RISS 인기검색어
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- 저자 : 황기선(Ki Seon Hwang) (검색결과 14 건)
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황기선,엄민용,박수혁,원옥재,서수정,이인용,박기웅,Hwang, Ki Seon,Eom, Min Yong,Park, Su Hyuk,Won, Ok Jae,Suh, Su Jeoung,Lee, In Yong,Park, Kee Woong 충남대학교 농업과학연구소 2014 Korean Journal of Agricultural Science Vol.41 No.4
This study was conducted in order to utilize the basic data for weed control by surveying the occurrence of weed species. Total 63 sites of upland Chinese cabbage fields in Chungnam Provinces were investigated. The result of survey, 71 weed species in 25 families were identified and classified to 39 annuals, 16 biennials and 16 perennials. Based on the occurrence ratio, the most weed species belonged to Compositae (20 species). 8, 6 and 5 weed species belonged to Poaceae, Cruciferae and Polygonaceae, respectively, and these 10 weed species in the most six families accounted for 50% of total weed occurrence. The most dominant weed species in upland Chinese cabbage fields were Portulaca oleracea (8.07%), followed by Digitaria ciliaris (7.54%), Rorippa palustris (6.44%), Chenopodium album (5.73%), Echinochloa crus-galli (5.02%) and Cyperus amuricus (3.95).
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벼 담수직파 시 Benzobicyclon 혼합제와 Carfentrazone-ethyl 혼합제의 제초활성
박수혁,허유리,원옥재,황기선,엄민용,한성민,박기웅,Park, Su Hyuk,Heo, Yu Ri,Won, Ok Jae,Hwang, Ki Seon,Eom, Min Yong,Han, Sung Min,Park, Kee Woong 충남대학교 농업과학연구소 2013 Korean Journal of Agricultural Science Vol.40 No.3
This study was conducted to evaluate the efficacy of herbicide mixtures of benzobicyclon and carfentrazone-ethyl in direct-seeding flooded rice. The efficacy of benzobicyclon mixtures and carfentrazone-ethyl mixtures was greater than that of pyrazosolfuron-ethyl + pyriminobac-methyl GR. Herbicide mixtures with benzobicyclon controlled average 97% and herbicide mixtures with carfentrazone-ethyl controlled average 95% 60 days after application. When compared with untreated control, no visual injuries were detected at single and double dosage of herbicide mixtures. The yield of rice increased in both benzobicyclon and carfentrazone-ethyl treatments when compared with pyrazosolfuron-ethyl + pyriminobac-methyl GR. Based on these data, combinations of these herbicides can be applied to provide effective weed management in rice field.
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벼 담수직파에서 Carfentrazone-ethyl 혼합제의 제초활성
원옥재,박기웅,박수혁,엄민용,황기선,김영태,변종영,Won, OK Jae,Park, Kee Woong,Park, Su Hyuk,Eom, Min Yong,Hwang, Ki Seon,Kim, Young Tae,Pyon, Jong Yeong 충남대학교 농업과학연구소 2015 Korean Journal of Agricultural Science Vol.42 No.2
This study was conducted to evaluate the herbicidal efficacy of carfentrazone-ethyl mixtures in direct-seeding flooded rice. The efficacy of three different carfentrazone-ethly mixtures was greater than pyrazosulfuron-ethyl pyriminobac-methyl GR (PP GR). Weeding efficacy of three different carfentrazone-ethly mixtures was more than 96.9%. No phytotoxic effect was observed in the rice based on the plant height and the number of tillers. Yield of rice un three different carfentrazone-ethly mixtures application was more than both in the PP GR and in the hand weeding. Based on these data, three different carfentrazone-ethly mixtures can be applied to provide an effective weed management in direct-seeding flooded rice.
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벼 재배에서 imazosulfuron+fentrazamide 합제의 제형 및 처리시기에 따른 제초활성
강광식,원옥재,박수혁,엄민용,황기선,서수정,변종영,박기웅,Kang, Kwang Sik,Won, Ok Jae,Park, Su Hyuk,Eom, Min Yong,Hwang, Ki Seon,Suh, Su Jeong,Pyon, Jong Yeong,Park, Kee Woong 충남대학교 농업과학연구소 2014 Korean Journal of Agricultural Science Vol.41 No.1
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.
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Benzobicyclon 혼합제의 제형 및 처리시기가 제초활성 및 벼 생육에 미치는 영향
원옥재,정종휘,송재은,박수혁,황기선,한성민,변종영,박기웅,Won, Ok Jae,Jeong, Jong Hee,Song, Jae Eun,Park, Su Hyuk,Hwang, Ki Seon,Han, Sung Min,Pyon, Jong Yeong,Park, Kee Woong 충남대학교 농업과학연구소 2013 Korean Journal of Agricultural Science Vol.40 No.4
This study was conducted to evaluate the efficacy of two different formulations and application timings of benzobicyclon+penoxsulam+pyrzaosulfuron-ethyl (BPP) in rice field. BPP granule (GR) and tablet (TB) controlled more than 90% of four weed species 10 and 15 days after sowing in direct seeding when compared with untreated control. BPP TB was highly effective to control herbicide resistant Scirpus juncoides and Monochoria vaginalis both 10 and 15 days after transplanting (DAT). BPP GR controlled 94.0 and 96.5% of S. juncoides and M. vaginalis, respectively 10 DAT, but its efficacy decreased to 88.5 and 49.8% respectively 15 DAT. When compared with untreated control, no visual injuries were detected at 255 and 510 g a.i./ha of BPP. The yield of rice increased in both BPP GR and TB in transplanting and direct seeding rice cultivation when compared with untreated control. Based on these data, early application (10 DAT) of BPP GR and TB can be applied to provide effective weed control, especially in the field infested with herbicide resistant weed species.
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오지원(Ji-won Oh),황기선(Ki-seon Hwang),이정(Jeng Lee),김수영(Sooyoung Kim) 대한전자공학회 2007 대한전자공학회 학술대회 Vol.2007 No.7
In this paper, we propose a design of the layered coding with block turbo codes. The proposed scheme can be used efficiently for multimedia broadcasting and multicasting services by adaptive selection of a modulation and coding scheme at a receiver. This paper demonstrates various design examples of the layered coding using rate compatible block turbo codes.
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농업용 무인 헬기를 이용한 benzobicyclon 혼합제의 잡초방제 효과
박수혁,원옥재,엄민용,한성민,황기선,서수정,박기웅,Park, Su Hyuk,Won, Ok Jae,Eom, Min Yong,Han, Sung Min,Hwang, Ki Seon,Seo, Su Jung,Park, Kee Woong 충남대학교 농업과학연구소 2014 Korean Journal of Agricultural Science Vol.41 No.2
This study was conducted to evaluate the efficacy of benzobicyclon mixtures by using Remote-controlled aerial application (RCAA) to control annual and perennial weeds in rice paddy field. Eight annual weed species including Echinochloa crus-galli L. and three perennial weeds were dominated in the experimental field. Application of benzobicyclon mixtures using RCAA was highly effective to control both annual and perennial weed species. When compared with untreated control, no visual injuries were detected at single and double dosage of benzobicyclon mixtures. Finally, rice yield in the benzobicyclon mixtures was as much as that in the hand weeding. This study indicates that benzobicyclon mixtures using RCAA can be applied to control both annual and perennial weed species in rice paddy field.
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