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2023 Vol.41, Issue 6 Preview Page

Research Article

Establishment of Proper Irrigation Method for Scion and Rootstock Production of Solanaceous Vegetables According to Water Use Efficiency in a Plant Factory with Artificial Lighting

인공광형 식물공장형육묘시스템에서 양수분이용효율에 따른 가지과 채소의 접수와 대목 생산을 위한 적정 관수법 확립

Yu Hyun Moon1†
,
Ui Jeong Woo1†
,
Ha Seon Sim1
,
Tae Yeon Lee1
,
Ha Rang Shin1
,
Sewoong An2
,
Sung Kyeom Kim3
,
Jung Su Jo4*
문 유현1†
,
우 의정1†
,
심 하선1
,
이 태연1
,
신 하랑1
,
안 세웅2
,
김 성겸3
,
조 정수4*
1Department of Horticultural Science, Graduate School of Kyungpook National University, Daegu 41566, Korea
2Korea National University of Agriculture and Fisheries, Jeonju 54874, Korea
3Department of Horticultural Science, College of Agricultural and Life Science, Kyungpook National University, Daegu 41566, Korea
4Department of Horticulture, College of Agricultural and Life Science, Chonnam National University, Gwangju 61186, Korea
1경북대학교 대학원 원예학과
2한국농수산대학교
3경북대학교 원예과학과
4전남대학교 원예생명공학과
*Corresponding Author
†These authors contributed equally to this work.
31 December 2023. pp. 686-694
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Abstract

A plant factory forms a closed ecosystem unaffected by external weather and can control environmental variables (temperature, relative humidity, light, etc.). Currently, plant factories equipped with artificial lighting are in the limelight as a means of sustainable agricultural development. However, the efficient irrigation method for seedling production needs to be improved in a closed-type cultivation system. A study was conducted to reveal the appropriate irrigation regime through a comparison of the growth of the seedlings and the water use efficiency when scions and rootstocks of tomato and hot pepper are cultivated in the plant factory with artificial lighting. Water treatment was set to 100% of the moisture content level of the plug tray's weight when each tray's topsoil was sufficiently wet, and irrigation was performed when the water content level reached 80%, 70%, 60%, and 50%. The dry matter production of tomato scions was the highest in the 70% treatment, and rootstocks were the highest in the 50% treatment. However, the water use efficiency of tomato scions and rootstocks was the highest in the 70% and 50% treatments, respectively. The dry matter production of hot pepper scions was the highest in the 50% and 70% treatments, and hot pepper rootstocks were the highest in the 80% treatment. The water use efficiency of hot pepper scions and rootstocks was the highest in the 50% treatment. This study confirmed that the seedling growth and water use efficiency were significantly affected by different irrigation regimes during the raising seedling period of tomatoes and hot peppers in the plant factory with artificial lighting. It is expected to reduce waste of water resources through proper irrigation.

Keywords
Capsicum annuum
grafted seedling
Solanum lycopersicum
vertical farm
water resource

실내 수직 농업의 한 형태인 식물공장형육묘시스템은 폐쇄된 생태계를 구성하여, 사계절 외부 기상의 영향을 받지 않고 환경 매개변수(기온, 상대습도, 빛 등) 제어가 가능하여, 지속가능한 농업의 발전 수단으로 각광받고 있다. 하지만, 시스템 내 작물 재배 시 작물 재배 방법들이 미흡한 실정이다. 토마토와 고추 접수 및 대목 재배 시 관수 처리에 따른 묘의 생장과 양수분이용효율 비교를 통해 적정관수시기를 구명하고자 연구를 수행하였다, 각 트레이의 상토가 충분히 적셔진 상태 일 때, 플러그 트레이 무게를 수분함량수준 100%로 두어 80%, 70%, 60% 및 50%가 되었을 때 관수 처리를 하였다. 토마토 접수의 건물생산량은 70% 처리구에서 가장 높았으며, 대목은 50% 처리구에서 가장 높았다. 접수와 대목 모두 모든 처리구에서 접목묘 생산에 적합한 생장을 보였다. 하지만, 토마토 접수는 70% 처리구에서, 대목은 50% 처리구에서 양수분이용효율이 가장 높았다. 고추 접수의 건물생산량은 50%와 70% 처리구에서, 대목은 80% 처리구에서 가장 높았다. 하지만, 대목의 경우 compactness 비교를 통한 전체 건물생산비율은 80%와 70%가 유의적인 차이가 없었다. 고추 접수 및 대목의 양수분이용효율은 모두 50% 처리구에서 가장 높았다. 본 연구는 식물공장형육묘시스템 내 토마토와 고추 접수 및 대목 육묘 시 관수 시기에 따라 작물의 생장과 양수분이용효율에 크게 영향을 미치는 것을 확인하였다. 또한, 적정 관수시기를 파악할 수 있는 기초를 제공하였으며, 적정 관수 시기에 따른 물 자원의 낭비와 오염을 줄일 수 있을 것으로 기대된다.

키워드
수직농장
접목묘
고추
토마토
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Information
  • Publisher :KOREAN SOCIETY FOR HORTICULTURAL SCIENCE
  • Publisher(Ko) :원예과학기술지
  • Journal Title :Horticultural Science and Technology
  • Journal Title(Ko) :원예과학기술지
  • Volume : 41
  • No :6
  • Pages :686-694
  • Received Date : 2023-02-22
  • Revised Date : 2023-05-02
  • Accepted Date : 2023-05-08
  • DOI :https://doi.org/10.7235/HORT.20230059
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