Abstract
Agricultural photovoltaic (APV) was proposed to combine food and energy production simultaneously on the same farmland. The shadow of photovoltaic panels (PVs) effects on plants' growth has been challenging for achieving food, energy, and water nexuses. We proposed a novel agricultural photovoltaic called Spectrum Splitting and Concentrated APV (SCAPV) based on splitting sunlight using curve glass covered with Multilayer Polymer Films (MPF). This paper aims to investigate the effects of SCAPV on the reduction of water evaporation and evapotranspiration (ET); and the impacts of SCAPV on soil nutrients, sweet potato quality, and yield. We placed evaporation containers and pans and planted sweet potatoes under SCAPV and open-air (CK). Our results showed that cumulative water soil evaporation of SCAPV and CK for 45 days was 63.38 mm and 80.53 mm. Cumulative water soil evaporation of SCAPV compared to CK was reduced by 21%. Soil pH and organic matter were increased than before planting. The anthocyanin content of sweet potatoes increased by 11.99%. Fresh and dry sweet potato yields increased by 56.13% and 56.64%. Water evaporation from the pan surface and ET were reduced by 32% and 31%. Using SCAPV could provide food and energy production while conserving water resources on farmland.
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Acknowledgements
This work was supported by “Fuyang Municipal Government - Fuyang Normal University Horizontal Project” under grant SXHZ202011 and “the CRSRI Open Research Program” under grant CKWV2019726/KY, and “the Fundamental Research Funds for the Central Universities” under grant WK529000000, Anhui Provincial Science and Technology Major Project" under grant No: 202203a06020002.
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Omer, A.A.A. et al. (2023). The Effect of the Novel Agricultural Photovoltaic System on Water Evaporation Reduction and Sweet Potato Yield. In: Lin, J. (eds) Proceedings of the 2022 International Petroleum and Petrochemical Technology Conference. IPPTC 2022. Springer, Singapore. https://doi.org/10.1007/978-981-99-2649-7_50
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