Analysis of Environmental Characteristics and Crop Stable Production in Smart Passive Solar Greenhouse for Export to Mongolia

Seo-A Yoon; Hyun-Eem Choi; Young-Jin Yoo; Su-Hyun Choi; Nasanjargal Tovuudorj; Yong-Beom Lee; Eun-Young Choi

doi:10.12791/KSBEC.2026.35.2.161

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2026 Vol.35, Issue 2 Preview Page

Original Articles

Analysis of Environmental Characteristics and Crop Stable Production in Smart Passive Solar Greenhouse for Export to Mongolia 몽골 수출형 스마트 일광 온실의 환경 특성 분석 및 작물의 안정적 생산 가능성 검증

30 April 2026. pp. 161-169

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Abstract

This study was aimed to determine environmental characteristics of smart passive solar greenhouses (PSH-11, PSH-9, PSH-7) commercially operated for local distribution of fruit vegetables in Mongol and to assess its stable production by collecting on-site data on temperature, humidity, light intensity, growth, and yield. Although the external temperature of greenhouse was dropped to 3.5°C, the greenhouse maintained an internal temperature above 11°C, proving its suitability for fruit vegetable production from April to July. However, the internal relative humidity (RH) was dropped to 30% during the daytime when photosynthesis was active, and consequently, the VPD (Vapor Pressure Deficit) was increased. Notably, tomatoes transplanted on April 20^th showed significantly greater size and weight compared to those transplanted on April 1^st. These findings suggest that implementing RH-enhancing technologies, such as fog systems, is essential for high-quality production, and the optimal transplanting date for stable yields is around April 20^th.

Keywords

absolute humidity

enthalpy

relative humidity

vapor pressure deficit

ventilation rate

본 연구는 몽골의 현지 유통을 목적으로 재배가 이루어지고 있는 스마트 일광 온실(PSH-11, PSH-9, PSH-7)에서 현장의 온도, 습도, 광량, 생육 및 수량 데이터를 수집하여 온실 환경 특성과 과채류의 안정적 생산 가능성을 검증하고자 수행하였다. 온실 외부의 최저 온도가 3.5℃로 낮을 때 온실 내부는 11℃ 이상으로 유지되어 4－7월 시기에 과채류 생산에는 문제가 없는 것으로 판단되지만, 광합성 작용이 활발히 일어나는 낮 시간대에 온실 내부의 상대습도(RH)가 30%대로 낮아졌으며, VPD(Vapor Pressure Deficit)도 높아졌다. 토마토 과실 크기와 과중은 4월20일에 정식한 것이 4월 1일에 정식한 것보다 유의적으로 높았다. 따라서, 과채류의 고품질 생산을 위해서는 포그 시스템 등을 활용하여 RH를 높이는 기술이 투여되어야 하며 과채류의 안정적 생산을 위한 정식 시기는 4월 20일경으로 판단된다.

키워드

상대습도

엔탈피

절대습도

포화수증기압차

환기율

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Information

Publisher :The Korean Society for Bio-Environment Control
Publisher(Ko) :(사)한국생물환경조절학회
Journal Title :Journal of Bio-Environment Control
Journal Title(Ko) :생물환경조절학회지
Volume : 35
No :2
Pages :161-169
Received Date : 2026-03-09
Revised Date : 2026-04-29
Accepted Date : 2026-04-30
DOI :https://doi.org/10.12791/KSBEC.2026.35.2.161

Journal of Bio-Environment Control ISSN:1229-4675(Print) 2765-3641(Online) 생물환경조절학회지

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