Influence of Thickness of Styrofoam-Panel on Tobacco Seedling Growth in Newly Developed Floating System

새로 개발된 부상형 육묘에 있어서 스티로포움 판의 두께가 연초 묘 생육에 미치는 영향

  • 백기현 (한국인삼연초연구원 음성시험장) ;
  • 신승구 (한국인삼연초연구원 음성시험장) ;
  • 한종구 (한국인삼연초연구원 음성시험장) ;
  • 권구홍 (한국인삼연초연구원 음성시험장) ;
  • 김영신 (충북대학교 농과대학) ;
  • 이승철 (한국인삼연초연구원 음성시험장)
  • Published : 1997.12.01


The inluence of styrofoam-panel thickness of floating frame on the seedling growth of flue-cured tobacco(Nicotiana tabacum L.) in the newly developed direct-seed float system was investigated . Floating frame used instead of styrofoam-tray consisted of styrofoam-panel (106×108cm) for floating, eight holes(1.Sx2S.0 cm) to uniform the water, and nutrition supply far seedling and water and nutrition absorption cloth placed on the styrofoam-panel. Each floating-frame may lay eight plastic-trays on it. Eight grades of styrofoam-panel thickness from 26 mm to 46mm and two kinds of media were used in the greenhouse system. Dry cells were found from the styrofoam-panel thickness of 43mm in carbonized chaff, compost and original soil rate of L3-3(v/v) media, and of 37mm in peat and perlite rate of 8-2(v/v) media. The thinner styrofoam-panel produced more tender and succulent seedling with the more trunk and the less root weight. When considering the appearance of dry cell, seedling growth, producing healthy tobacco seedlings, and utilization of styrofoam-panel for two kinds of medias the ideal styrofoam-panel thickness were suggested to be around 34mm for flue-cured tobacco reeling production in the newly developed direct-seeding float system. Key words : tobacco seedlings, float system, medium, styrofoam pannel, dry cell.



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