Journal of Bio-Environment Control (생물환경조절학회지)

The Korean Society for Bio-Environment Control (한국생물환경조절학회)
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Evaluation of Cultivation Characteristics according to NO3- Ratio of Nutrient Solution for Korean Melon in Hydroponic Culture

양액의 NO3- 비율이 수경재배 참외의 생육과 수량에 미치는 영향

  • Do Yeon Won (Seongju Korean Melon Fruit and Vegetable Research Institute) ;
  • Ji Hye Choi (Seongju Korean Melon Fruit and Vegetable Research Institute) ;
  • Chang Hyeon Baek (Seongju Korean Melon Fruit and Vegetable Research Institute) ;
  • Na Yun Park (Seongju Korean Melon Fruit and Vegetable Research Institute) ;
  • Min Gu Kang (Seongju Korean Melon Fruit and Vegetable Research Institute) ;
  • Young Jin Seo (Seongju Korean Melon Fruit and Vegetable Research Institute)
  • 원도연 (경상북도농업기술원 성주참외과채류연구소) ;
  • 최지혜 (경상북도농업기술원 성주참외과채류연구소) ;
  • 백창현 (경상북도농업기술원 성주참외과채류연구소) ;
  • 박나윤 (경상북도농업기술원 성주참외과채류연구소) ;
  • 강민구 (경상북도농업기술원 성주참외과채류연구소) ;
  • 서영진 (경상북도농업기술원 성주참외과채류연구소)
  • Received : 2023.06.09
  • Accepted : 2023.07.27
  • Published : 2023.07.31
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Abstract

Korean melon (Cucumis melo L.) is grown mostly in Northeast Asia area, and as a fruit mainly produced in Korea, the yield per unit area continues to improve, but the cultivation method is limited to soil cultivation, so it is necessary to develop hydroponic cultivation technology for scale and labor-saving is needed. As the ratio of NO3- increased, the plant height, the leaf length, the leaf width, and the internode length became longer and larger. On the other hand, the SPAD value decreased. The lower the ratio of NO3-, the faster the female flower bloom, and there was no difference in fruit maturity between treatments. There was no difference in the shape of fruit according to the ratio of NO3-, and the hardness was higher as the ratio of NO3- was lower. The total yield from March to July was KM3 5,650 kg/10a and KM1 4,439 kg/10a, 27% higher in KM3 and, in particular, 36% higher in quantity from March to May, when Korean melon prices were high season. Therefore, it was judged that it would be appropriate to supply NO3- suitable for hydroponic cultivation of Korean melon, which was formalized in December and produced from spring, at the level of 6.5 to 10 me·L-1.

참외는 동북아시아 지역에서 대부분 재배되고 있고, 한국에서 주로 생산되는 과일로서 단위면적당 수확량은 지속적으로 향상되고 있지만 재배방식은 토경재배에 국한되어 있기 때문에 규모화, 생력화를 위한 수경재배 기술 개발이 필요하다. 본 연구에서는 보온부직포를 이용한 수경재배로 참외를 재배할때 영양생장기 배양액 내 질산태질소 비율에 따른 참외 생육의 변화를 확인했다. 배양액에서 질산태질소 비율이 증가할수록 초장은 길어지고, 엽장, 엽폭, 절간장도 함께 증가하였다. 생육 30일차의 SPAD값은 질산태질소 비율이 증가할수록 감소하였다. 질산태질소 비율에 낮을수록 암꽃 개화가 빨리 되었고, 과실 성숙에서는 처리 간 차이가 없었다. 질산태질소 비율에 따른 과실의 형태는 차이가 없었고, 경도는 질산태질소의 비율이 낮을수록 높아 과실이 단단하였다. 3월에서 7월까지 총 수확량은 KM3 5,650kg/10a, KM1 4,439kg/10a로 KM3가 27% 높았고 특히, 참외 가격이 높은 3월에서 5월까지 수량은 KM3가 KM1보다 36% 높았다. 따라서 12월 정식되어 봄철부터 생산되는 참외의 수경재배에 적합한 질산태질소는 6.5-10me·L-1 수준으로 공급하는 것이 적당할 것으로 판단되었다.

Keywords

Acknowledgement

본 연구는 농촌진흥청 연구사업(과제번호: RS-2021-RD012433, 지역농업연구기반및전략작목육성)의 지원에 의해 이루어진 것임.

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