This study was carried out to investigate the proper wattage and installation distance for the efficient use of nano-carbon fiber infrared heating lamp (NCFIHL), a heating device advantageous for heating energy saving, when the production of watermelon plug seedlings in the plug seedling nursery in winter season. Six small beds were divided into plastic film, and 700 W and 900 W nano-carbon fiber infrared heating lamps were installed at 100 cm above the bed. 1 lamp at central (control), 60 cm interval (2 lamps), and 40 cm interval (3 lamps) heating lamps were installed in each bed inside the greenhouse. All treatments, except the control, were set to keep the night air temperature at 20℃ after lighting the NCFIHL. The leaf temperature showed a tendency to increase fast as the install distance was narrow. The leaf length and leaf width tended to increase as the installation distance of the 700 W heating lamp was narrow. The compactness was high in 700 W heating lamp with 40 cm of installation distance. Therefore, in consideration of maintaining the set temperature at night, installing 700 W electric lamps at 40 cm was an efficient power and installation distance for watermelon grafted seedlings considering economic feasibility.

Abstract
서 론
재료 및 방법
    1. 실험재료 및 재배환경
    2. 나노탄소섬유 적외선 난방등 설치 및 실험 구획 설정
    3. 온실 환경측정 및 생육 조사
    4. 통계분석
결과 및 고찰
적 요
Literature Cited

• 김혜민(경상국립대학교 대학원 응용생명과학부 대학원생) | Hye Min Kim (Graduate Student, Division of Applied Life Science, Graduate School of Gyeongsang National University, Jinju 52828, Korea)
• 정현우(경상국립대학교 대학원 응용생명과학부 대학원생) | Hyeon Woo Jeong (Graduate Student, Division of Applied Life Science, Graduate School of Gyeongsang National University, Jinju 52828, Korea)
• 황희성(경상국립대학교 대학원 작물생산과학부 대학원생) | Hee Sung Hwang (Graduate Student, Division of Crop Science, Graduate School of Gyeongsang National University, Jinju 52828, Korea)
• 황승재(경상국립대학교 농업생명과학대학 원예학과 교수, 경상국립대학교 농업생명과학연구원 교수, 경상국립대학교 생명과학연구원 교수) | Seung Jae Hwang (Professor, Department of Horticulture, College of Agriculture & Life Sciences, Gyeongsang National University, Jinju 52828, Korea, Professor, Institute of Agriculture & Life Sciences, Gyeongsang National University, Jinju 52828, Korea, Professor, Research Institute of Life Science, Gyeongsang National University, Jinju 52828, Korea) Corresponding author