Effects of Agricultural Photovoltaic Systems Development on Sweet Potato Growth: Novel Agrivoltaics for Water Food Energy Nexus

Altyeb Ali Abaker Omer; Wen Liu; Xinliang Liu; Ming Li; Xinyu Zhang; Fangcai Chen; Jianan Zheng; Wenjun Liu; Fangxin Zhang; Jan Ingenhoff; Zhisen Zhang

doi:10.52825/agripv.v1i.588

Authors

Altyeb Ali Abaker Omer University of Science and Technology of China https://orcid.org/0000-0001-9420-9910
Wen Liu University of Science and Technology of China https://orcid.org/0000-0002-4788-3598
Xinliang Liu Jiangsu Normal University
Ming Li University of Science and Technology of China
Xinyu Zhang University of Science and Technology of China
Fangcai Chen University of Science and Technology of China
Jianan Zheng University of Science and Technology of China https://orcid.org/0000-0001-7047-0911
Wenjun Liu Xiong'an Institute of Innovation https://orcid.org/0000-0002-9251-6711
Fangxin Zhang University of Science and Technology of China
Jan Ingenhoff University of Science and Technology of China https://orcid.org/0000-0003-0040-0584
Zhisen Zhang University of Science and Technology of China

DOI:

https://doi.org/10.52825/agripv.v1i.588

Keywords:

Agricultural Photovoltaic Development, Spectral Separation, Even-Lighting, Sweet Potatoes, Evapotranspiration, Saving Water

Abstract

Agricultural Photovoltaic (APV) has become more popular worldwide. Its core idea is to generate electricity and grow crops simultaneously on the same farmland. We developed two APV, Spectrum Splitting and Concentrated APV (SCAPV) and Even-lighting Agricultural Photovoltaic (EAPV). Our previous studies have investigated electricity generation, enhanced growth of plants/crops, and reduced water evaporation simultaneously on the same farmland. Furthermore, SCAPV and EAPV examined the better quality and increased yield of many plants, such as lettuce and cucumber. However, the effects of SCAPV and EAPV on sweet potato quality and yield have not been studied. Therefore, this study aims to investigate the impact of SCAPV and EAPV on evapotranspiration (ET) and sweet potato quality and yield. We conducted three treatments: SCAPV, EAPV, and open-air (CK). We planted 32 m2 of sweet potatoes and placed a weather station in each treatment. Our results showed that the 32 m2 of sweet potato yield under SCAPV, EAPV, and CK were 121.53 kg, 99.55 kg, and 77.84 kg, respectively. The dry rate in CK was 11.75% lower than 13.41% and 13.81% under SCAPV and EAPV, respectively. Soluble sugar content increased under EAPV. Anthocyanin content under SCAPV improved. Therefore, SCAPV and EAPV positively affect dry matter accumulation and enhance the sweet potato's growth. Average ET under SCAPV and EAPV compared with CK significantly reduced by 31% and 23%. SCAPV and EAPV could reduce irrigation and provide feasible green energy and sustainable APV solutions.

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Effects of Agricultural Photovoltaic Systems Development on Sweet Potato Growth

Novel Agrivoltaics for Water Food Energy Nexus

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