Evaluation of Yield and Yield Components of Rice in Vertical Agro-Photovoltaic System in South Korea

Hyun Jo, Jong Tae Song, Hyeonjun Cho, Sangyeab Lee, Seungmin Choi, Ho-Jun Jung, Hyeong-No Lee and Jeong-Dong Lee ()
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Hyun Jo: Department of Applied Biosciences, Kyungpook National University, Daegu 41566, Republic of Korea
Jong Tae Song: Department of Applied Biosciences, Kyungpook National University, Daegu 41566, Republic of Korea
Hyeonjun Cho: Department of Applied Biosciences, Kyungpook National University, Daegu 41566, Republic of Korea
Sangyeab Lee: Department of Applied Biosciences, Kyungpook National University, Daegu 41566, Republic of Korea
Seungmin Choi: Department of Applied Biosciences, Kyungpook National University, Daegu 41566, Republic of Korea
Ho-Jun Jung: R&D Team, GRANDSUN ENG Inc., Busan 46703, Republic of Korea
Hyeong-No Lee: R&D Team, GRANDSUN ENG Inc., Busan 46703, Republic of Korea
Jeong-Dong Lee: Department of Applied Biosciences, Kyungpook National University, Daegu 41566, Republic of Korea

Agriculture, 2024, vol. 14, issue 6, 1-13

Abstract: Renewable energy from photovoltaic power plants has increased in amount globally as an alternative energy to combat global climate change by reducing fossil fuel burning and carbon dioxide (CO 2 ) emissions. The agro-photovoltaic (APV) approach can be a solution to produce solar energy and crop production at the same time by installing solar panels on the same farmland to increase land use efficiency. This study aimed to compare the yield and yield components of rice ( Oryza sativa L.) between a vertical APV system and a control field across two years. The solar panels were installed around the rice field in four directions of rice cultivation. Based on the analysis of variance, the primary factor influencing measured yield and yield components was the year effect, whereas the direction effect did not show significance, except for amylose content and ripened grains. Especially for rice production, the rice yield in 2023 was 6.8 t/ha, which was significantly higher by 0.8 t/ha than in 2022. Compared with the control condition, however, there was no significant negative impact on the year-to-year rice yield of the vertical APV system across two years. As rice yield was mainly affected by year, rice yield trials will be required for multiple years to understand the genetic and environmental factors influencing rice production under the vertical APV system.

Keywords: vertical agro-photovoltaic system; rice paddy field; rice yield; split plot design; solar panel (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2024
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