Journal of Bio-Environment Control (생물환경조절학회지)

The Korean Society for Bio-Environment Control (한국생물환경조절학회)
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Effects of $CO_2$ Enrichment Concentration and Duration on Growth of Bell Pepper (Capsicum annuum L.)

탄산 시비 농도와 시비 시간이 착색단고추 생육에 미치는 영향

  • Kang, Yun-Im (Horticultural Soil Management Team, NHRI, RDA) ;
  • Lee, Si-Young (Protected Horticulture Experiment Station, NHRI, RDA) ;
  • Kim, Hak-Joo (Protected Horticulture Experiment Station, NHRI, RDA) ;
  • Chun, Hee (Protected Horticulture Experiment Station, NHRI, RDA) ;
  • Jeong, Byoung-Ryong (Department of Horticulture, Division of Plant Resources and Environment, Gyeongsang National University)
  • 강윤임 (원예연구소 원예토양관리팀) ;
  • 이시영 (원예연구소 시설원예시험장) ;
  • 김학주 (원예연구소 시설원예시험장) ;
  • 전희 (원예연구소 시설원예시험장) ;
  • 정병룡 (경상대학교 농업생명과학대학)
  • Published : 2007.12.30
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Abstract

We investigated effects of concentration and duration were investigated in order to promote efficiency of $CO_2$ enrichment in winter. The treatments were conducted with two levels of $CO_2$ concentration, namely 400 ppm, 700 ppm, two levels of duration, 3 h (9:00-12:00), 6 h (9:00-15:00), and control (nonenrichment $CO_2$). Fresh weight of leaves increased under longer exposure to $CO_2$ and higher $CO_2$ concentration. Fresh weight of stem and root increased under longer exposure to $CO_2$, but decreased under higher $CO_2$ concentration. Total dry weight increased under longer exposure to $CO_2$ and higher $CO_2$ concentration. Combination treatment of longer exposure to $CO_2$ and higher $CO_2$ concentration showed the largest decrease of Root : Shoot dry weight ratio. The $700ppm{\times}6h$ treatment showed higher fruit number and yield than control. The results suggested that the growth under longer exposure to 400 ppm $CO_2$ was better than that under higher $CO_2$ concentration.

본 연구는 착색단고추의 겨울철 시설재배시 탄산가스 시비의 이용효율을 높이기 위한 시비 농도 및 시간을 구명하기 위해 수행하였다. 탄산가스의 공급 설정농도 수준은 400ppm과 700ppm이였으며, 시비 시간은 09:00-12:00(3h)과 09:00-15:00(6h)로 농도와 시간을 조합한 4 수준과 무처리구를 합하여 5 처리를 하였고, 정식 후 55일간 처리하였다. 그 결과 전반적으로 탄산가스 농도가 높고, 시비시간이 길어질수록 전반적인 생육이 증가하였다. 그러나 겨울철에는 광도가 제한 요소로 작용하기 때문에 탄산가스의 높은 농도보다는 시비 시간이 길어질수록 생육이 더 증가하였다. 그러므로 광이 적은 겨울철에는 높은 농도의 이산화탄소를 짧은 시간 시비하는 것보다 낮은 농도로 긴 시간 시비하는 것이 효율적인 것으로 판단된다.

Keywords

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