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2020 Vol.29, Issue 4 Preview Page

Original Articles

Yield Increase and Energy Saving Effect on Plastic Greenhouse Covered with Polyolefin Film

PO필름 피복 온실의 수량 증대 및 에너지 절감 효과

Jong Pil Moon1*
,
Seok Ho Park2
,
Jin Gu Kim1
,
Jae Han Lee1
,
Youn Koo Kang3
,
Mi Young Lim4
,
Hye Min Kim4
문 종필1*
,
박 석호2
,
김 진구1
,
이 재한1
,
강 연구3
,
임 미영4
,
김 혜민4
1Researcher, Protected Horticulture Research Institute, NIHHS, RDA, Haman 52054, Korea
2Senior Researcher, Protected Horticulture Research Institute, NIHHS, RDA, Haman 52054, Korea
3Researcher, Department of agricultural Engineering, NAS, RDA, Jeonju 54875, Korea
4Postdoctoral fellow, Protected Horticulture Research Institute, NIHHS, RDA, Haman 52054, Korea
1국립원예특작과학원 시설원예연구소 연구사
2국립원예특작과학원 시설원예연구소 연구관
3국립농업과학원 농업공학부 연구사
4국립원예특작과학원 시설원예연구소 박사후 연구원
*Corresponding author: jpmoon2002@korea.kr
30 October 2020. pp. 428-439
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Abstract

This study was carried out to investigate the effect of PO film on the increase of crop yield and energy saving through PO and PE film greenhouse application and comparison test. As a experimental greenhouse, two single span greenhouses (1-1 W) and two double span greenhouses (1-2 W) were used. During winter season, PO film (0.15 mm outer layer, 0.10mm inner layer) was used as a covering material of greenhouse in double layers for double-span (B15) and single-span(B21), and PE film used for double-span (B15), and single-span (B23) as a control. The experimental vegetable was tomato(Solanum lycopersicum L.) cultivated in soil and the cultivar of that was ‘Happiness’. That was cultivated from December 3, 2019 to April 30, 2020. The temperature at night inside the greenhouse was maintained at 15℃, and the side and roof windows were opened to maintain 23 ~ 24℃ during the day. As a result, this study showed that the yield in single-span greenhouse(B21) covered with a PO film increased 20% and that in double-span greenhouse (B16) increased by 9% compared to the greenhouse covered with a PE film (B23, B15). Fuel consumption of the single-span greenhouse (B21) with the cover of PO film was reduced by 12.4% and that of double-span greenhouse was done by 11.5% compared to that of the PE film greenhouse (B23, B15) without any difference between them in growing state.

Keywords
heating cost saving
insulation effect
Solar radiation increase

본 연구는 PO필름과 PE필름을 온실의 피복재로 적용하였을 때 작물 수량 증대 및 에너지 절감에 미치는 영향을 조사하였다. 시험온실은 국립원예특작과학원 시설원예연구소 내에 위치한 단동온실(1-1W) 2동(B21, B23)과 2연동온실(1-2W형) 2동(B15, B16)을 사용하였다. 단동온실의 규격은 폭 7.2m, 길이 30m, 측고 1.5m, 동고 3.6m 이고, 연동온실의 규격은 폭 8m, 길이 40m, 측고 3.1m, 동고 5.8m의 온실로서 이중 골조로 된 아치형 표준온실이다. 동절기 시험을 위하여 PO필름(외피 0.15mm, 내피 0.10mm)을 단동과 연동의 온실 피복재로 사용하였으며 대조구 온실로서 PE필름(외피 0.15mm, 내피 0.10mm)을 단동과 연동에 설치하였다. 시험작물은 완숙토마토 ‘해피니스’를 토양재배 하였고 2019년 12월 3일에 정식하여 2020년 4월 30일까지 재배하였다. 온실내부 야간 설정온도는 15℃를 유지하였으며 주간에는 23∽24℃를 유지할 수 있도록 측창 및 천창을 개방하였다. PO필름의 단동 및 연동온실 내부에서의 일사량, 온습도 등을 측정하였고, 재배기간 동안의 생육량을 조사하였으며 에너지 절감 효과를 조사하기 위해 피복재별 시험온실의 온풍난방기 연료 소비량을 조사하였다. 조사 결과 단동온실에서의 일사량은 PO필름 온실에서 PE필름 온실보다 7% 증가하였고 수확량은 20% 증대되었다. 연동온실에서의 일사량은 PO필름 온실에서 PE필름 온실보다 11% 증가되었고, 수확량은 9% 증가하였다. 또한 온실내부의 일평균 온습도 측정 결과 단동온실은 PE, PO필름 온실이 19.0℃, 19.1℃, 상대습도 75%를 나타냈고 연동온실은 PO필름 온실이 19.6℃, 상대습도 57%를 나타냈고 PE필름 온실이 18.8℃, 상대습도 63%를 나타냈다. 연료 소비량은 단동온실의 PO필름 온실이 PE필름 온실보다 12.4% 절감되었고 연동온실에서는 PO필름 온실이 PE필름 온실보다 11.5% 절감된 것으로 나타났다.

키워드
일사량 증대
보온 효과
난방비 절감
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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 : 29
  • No :4
  • Pages :428-439
  • Received Date : 2020-09-11
  • Revised Date : 2020-10-12
  • Accepted Date : 2020-10-13
  • DOI :https://doi.org/10.12791/KSBEC.2020.29.4.428
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