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Plant Science Today (PST)

Special issue on Int Conf Spices

Vol. 11 No. sp3 (2024): International Seminar on Spices KAU - 2024

Agrivoltaics system: sustainable approach for okra cultivation and energy stability

DOI
https://doi.org/10.14719/pst.4719
Submitted
19 August 2024
Published
02-01-2025
Versions

Abstract

The growing population and energy-intensive industries are raising global energy demand, which can be mitigated by the sustainable use of agrivoltaics systems (AGV). AGV is a notion by which agricultural regions can be used for crop cultivation and photovoltaic electricity production by erecting solar collectors 2-5 m above the ground. In semi-arid and arid areas, the microclimate created under AGV systems is extremely favourable for plant development. AGV systems have several synergistic benefits, including lowering total radiation levels on spices and herbs, thereby increasing yield and promoting water conservation by lowering evapotranspiration and lessening the consequences of high radiation. The present research brought forward an understanding of an AGV system ideal for growing okra. The average moisture content in the soil was found to increase by 2-8 % with a decrease in light intensity by 40 ± 5 % during the summer season, having an additional decrease in air temperature by 2.5 ˚C. The soil surface temperature was also decrease by 8-15 % subsequently, which proved beneficial for plant growth. The AGV system was found to protect protected plant saplings during heavy rains in the rainy season, with a higher germination rate. The change in microclimate data suggests that a better crop growth climate can be obtained under the AGV system alongside energy production throughout the year. Heavy shade significantly reduced okra yields, causing stunted growth and fewer fruits. This study highlights the crucial need for adequate sunlight for okra, a sun-loving plant that requires ample sunshine for optimal fruit development and photosynthesis. Additionally, the techno-economic study also shows that the AGV project can improve economic benefits to the farmers.

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