The spectrum of this study was research on the closed hydroponic cultivation of netted melons (Cucumis melo L.) using coir substrate, analyzing the impact of this cultivation method on melon yield, fruit quality, and the efficiency of water and nutrient usage. The experimental results showed that the average fruit weight of the melons grown in a closed system was 71.4 g higher than that of the open system, and the fruit width was on average 0.2 cm larger, showing a statistically significant difference. However, there was no difference in the average sugar content of the fruit flesh and height. Although there is no substantial commercial difference, it is conjectured that the change in the macronutrients ratio in the irrigation has played a role in the statistically significant increase in fruit weight, which is attributed to changes in the crops' nutrient uptake concentrations. This necessitates further research for a more comprehensive understanding. In terms of the productivity of irrigation required to produce the fruit, applying the closed system resulted in an increase of 7.6 kg/ton compared to the open system, saving 31.6% of water resources. Additionally, in terms of nutrients, cultivating in a closed system allowed for savings of approximately 59, 25, 55, 83, 76, and 87% of N, P, K, Ca, Mg, and S, respectively, throughout the entire cultivation period. As the drainage was reused, the ratios of NO3 - and Ca2+ increased up to a maximum of 9.6 and 9.1%, respectively, while the ratios of other ions gradually decreased. In summary, these results suggest that closed hydroponic cultivation can effectively optimize the use of water and fertilizer while maintaining excellent fruit quality in melon cultivation.

서 론
재료 및 방법
    1. 식물재료 및 재배관리
    2. 배액 재사용
    3. 급·배액의 용량 및 화학성 분석
    4. 비료 사용량 및 관개수 생산성
    5. 생육 및 수량 특성 조사
    6. 실험 통계 방법
결과 및 고찰
    1. 멜론 과실 수량 및 품질
    2. 급·배액량 및 관개수 생산성
    3. 급·배액 양분 소모량
    4. 급·배액 양분 비율 균형
적 요
사 사

• 신민주(국립원예특작과학원 시설원예연구소 농업연구사 및 경북대학교 원예과학과, 경북대학교 대학원 원예과학과 대학원생, 5경북대학교 원예과학과 교수) | Minju Shin (Researcher, Protected Horticulture Research Institute, National Institute of Horticultural and Herbal Science, Haman 52054, Korea, Graduate Student, Department of Horticultural Science, College of Agricultural and Science, Kyungpook National University, Daegu 41566, Korea)
• 윤승리(국립원예특작과학원 시설원예연구소 전문연구원) | Seungri Yoon (RDA Researcher Associate, Protected Horticulture Research Institute, National Institute of Horticultural and Herbal Science, Haman 52054, Korea)
• 김진현(국립원예특작과학원 시설원예연구소 농업연구사 및 경북대학교 원예과학과) | Jin Hyun Kim (Researcher, Protected Horticulture Research Institute, National Institute of Horticultural and Herbal Science, Haman 52054, Korea)
• 정호정(국립원예특작과학원 시설원예연구소 농업연구관) | Ho Jeong Jeong (Senior researcher, Protected Horticulture Research Institute, National Institute of Horticultural and Herbal Science, Haman 52054, Korea)
• 김성겸(경북대학교 원예과학과 교수) | Sung Kyeom Kim (Professor, Department of Horticultural Science, College of Agricultural and Science, Kyungpook National University, Daegu 41566, Korea) Corresponding author