Assessment of CO2 Fertilization Captured in Thermoelectric Power Plant on Leafy Vegetables Grown in Greenhouse

Hyeon Woo Jeong; Hee Sung Hwang; Jeong Park; Seong Ju Yoon; Seung Jae Hwang

doi:10.12791/KSBEC.2022.31.4.423

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2022 Vol.31, Issue 4 Preview Page Next Page

Original Articles

Assessment of CO₂ Fertilization Captured in Thermoelectric Power Plant on Leafy Vegetables Grown in Greenhouse 화력발전소 포집 CO₂를 이용한 시설 엽채류 시비효과 평가

31 October 2022. pp. 423-431

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Abstract

Due to increase of interest in ‘carbon neutrality’, attempts at agricultural use of CO₂ are increasing. In this study, we used the dry-ice made by CO₂ as by-product in thermoelectric power plant on CO₂ fertilization for production of leafy vegetable in greenhouses. The dry-ice was supplied on three leafy vegetable farms (Allium tuberosum Rottl. ex Spreng, Aster scaber, and Oenanthe stolonifera DC.) located in Hadong, Gyeongsangnamdo. Two greenhouses were used in each leaf vegetable crops, one greenhouse used as the control (non-treatment), other greenhouse used as supplied CO₂. For CO₂ fertilization, a gas sublimated from dry ice was supplied to the greenhouse using a specially designed prototype supply machine. A. tuberosum greenhouse has no difference of CO₂ concentration between the control, and CO₂ fertilization and shown high CO₂ concentration both greenhouses. However, the CO₂ concentrations in A. scaber and O. stolonifera greenhouses were increased in CO₂ fertilization treatment. The growth of A. scaber and O. stolonifera were increased in CO₂ fertilization, and the yield also increased to 36% and 25% than the control, respectively. As a result of economic analysis, the A. scaber has increase of income rate, however A. tuberosum and O. stolonifera has decreased income rate. Thus, the use of the dry-ice made by CO₂ as by-product in thermoelectric power plant has possibility to increase productivity of the leafy vegetable in greenhouse and have agricultural use value.

Keywords

Allium tuberosum Rottl. ex Spreng

Aster scaber

carbon neutrality

economical analysis

Oenanthe stolonifera DC

‘탄소중립’에 대한 관심이 높아짐에 따라 CO₂를 농업적으로 이용하기 위한 시도가 증가하고 있다. 본 실험은 발전소에서 부산물로 배출되는 CO₂를 포집하여 액화·정제 후 시설 엽채류의 생육 및 생산성 증대를 위한 시비용 CO₂로의 활용 가능성을 평가하기 위해 수행되었다. 경상남도 하동지역의 부추, 취나물, 미나리 농장에 드라이아이스가 공급되었고 각 농장의 온실 중 하나의 온실은 대조군, 하나의 온실은 CO₂ 처리구로 사용되었다. CO₂의 시비는 자체 제작한 장치를 사용하여 드라이아이스에서 승화된 가스를 온실에 공급했다. 부추 온실은 대조군과 CO₂ 처리에서 온실 내 CO₂ 농도의 차이가 없었고 두 온실 모두 높은 CO₂ 농도를 보였다. 반면에 취나물과 미나리 온실에서는 CO₂ 시비 처리에서 높은 CO₂ 농도가 측정되었다. 취나물 및 미나리의 생육은 CO₂ 시비 처리구에서 유의성 있게 증가하였으며 수확량도 각각 36%와 25%로 증가하였다. 경제성 분석 결과, 취나물 농가에서는 소득률이 증가하였지만, 부추와 미나리 농가는 감소하는 것으로 나타났다. 따라서 화력발전소에서 부산물로 발생한 드라이아이스의 이용은 시설 엽채류의 생산성을 높일 수 있었다.

키워드

경제성분석

미나리

부추

취나물

탄소중립

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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 : 31
No :4
Pages :423-431
Received Date : 2022-09-30
Revised Date : 2022-10-18
Accepted Date : 2022-10-20
DOI :https://doi.org/10.12791/KSBEC.2022.31.4.423

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

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