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2016 Vol.25, Issue 2 Preview Page
Microclimate and Crop Growth in the Greenhouses Covered with Spectrum Conversion Films using Different Phosphor Particle Sizes

광전환재 크기가 다른 광전환 필름 피복 온실 내 미기상 및 작물 생육

Kyoung Sub Park1
,
Joon Kook Kwon1
,
Dong Kwon Lee2
,
Jung Eek Son3*
박 경섭1
,
권 준국1
,
이 동권2
,
손 정익3*
1Protected Horticulture Research Institute, National Institute of Horticultural and Herbal Science, Gyeonsangnam-do 520-54, Korea
2Envio, Venture Center, Korea Institute of Energy Research Institute, Daejeon, 341-29, Korea
3Department of Plant Science, Seoul National University, Seoul 088-26, Korea
1국립원예특작과학원 시설원예연구소
2주)엔비오
3서울대학교 식물생산과학부
*Corresponding author: sjeenv@snu.ac.kr
30 April 2016. pp. 111-117
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Abstract

The objective of this study was to analyze the microclimate and the growth of tomato and lettuce in the greenhouses covered with spectrum conversion films using different phosphor particles sizes. Two spectrum conversion films using phosphor particles larger than 10 μm (Micro-film) and smaller than 500 nm (Nano-film) in radius, and poly-ethylene (PE) film were used in double-layered greenhouses as outer coverings. PE films were used as inner coverings in all the greenhouses. Thickness of the films for inner and outer coverings was 0.06 mm. Tensile strength, elongation, and tearing resistance of the Micro- and Nano-films were not different from those of the PE film. Transmittances at a wavelength of 300-1100 nm were a little higher at the Micro- film and lower at the Nano-film than that of the PE film, respectively. Air temperatures at the Micro- and Nano-films were over 2°C higher than at the PE film, but no significant difference was observed between the two light conversion films. The soil temperature at the Nano-film was 1.5°C and 3°C higher than at the Micro- and PE films, respectively. The yields of tomato at the Micro- and Nano-films were 12% and 14% higher than at the PE film, but no significant difference was observed between the two spectrum conversion films. The total soluble solid showed no significant differences among all the films. The yields of lettuces at the Micro- and Nano-films were 27% and 59% higher than at the PE film. Hunter’s red (a) value of the lettuce leaf was the highest at the Nano-film. In this experiment, tomatoes requiring high irradiation were better at the Nano film, while lettuce requiring low irradiation better at the Micro film.

Keywords
lettuce
micro-size
nano-size
PE film
tomato
spectrum conversion film

본 연구의 목적은 광전환재의 사이즈가 다른 광전환 필름을 피복한 온실에서, 실내 생육 환경, 토마토 및 상 추의 생육과 품질을 분석하는 것이다. 10μm 이상의 광 전환재를 이용한 광전환 필름(Micro 필름), 500nm 이 하의 광전환재를 이용한 광전환 필름(Nano 필름)과 폴 리에틸렌(PE) 필름을 2중 온실의 외피복재로 피복하였 다. 내피복재는 0.06mm PE 필름을 사용하였고, 내피복 재 및 외피복재의 두께는 모두 0.06mm로 동일하였다. 광전환 필름의 인장강도, 인열강도, 신장율은 PE 필름 과 유사하였다. 투광률은 Nano 필름이 600-750nm 및 전체 투광률에서 PE 필름보다 높았으며, Micro 필름은 PE 필름보다 전체 투광률이 낮았다. 온실 내 기온은 Micro 및 Nano 필름 온실이 PE 필름 온실에 비하여 약 2°C정도 높았고, 광전환 필름 온실 간의 유의적인 차이는 없었다. 지온은 Nano 필름 온실이 Micro 필름 과 PE 온실에 비하여 각각 1.5, 3 정도 높았다. 토마토 의 수량은 PE 필름 온실에 비해 Micro 및 Nano 필름 온실에서 각각 12%, 14% 정도 유의적으로 증가하였고, 당도 차이는 없었다. 그리고 광전환 필름 간의 유의적 인 차이는 없었다. 상추의 수량은 Micro 필름 온실이 Nano 필름 및 PE 필름 온실에 비하여 각각 27%, 59% 높았다. Hunter의 적색 값a는 Nano 필름 온실에서 가 장 높았다. 토마토와 같이 높은 광을 요구하는 작물은 투광률이 좋은 Nano 필름이 적합하였고, 상추와 같이 낮은 광을 요구하는 작물은 상추는 Micro 필름이 적합 하다고 판단되었다.

키워드
나노 사이즈
마이크로 사이즈
상추
토 마토
PE 필름
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Information
  • Publisher :The Korean Society for Bio-Environment Control
  • Publisher(Ko) :(사)한국생물환경조절학회
  • Journal Title :Protected Horticulture and Plant Factory
  • Journal Title(Ko) :시설원예ㆍ식물공장
  • Volume : 25
  • No :2
  • Pages :111-117
  • Received Date : 2016-05-20
  • Revised Date : 2016-06-20
  • Accepted Date : 2016-06-21
  • DOI :https://doi.org/10.12791/KSBEC.2016.25.2.111
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