Agricultural sustainability estimation of the European photovoltaic greenhouses
Article
Cossu, M., Yano, A., Solinas, S., Deligios, P., Tiloca, M., Cossu, A. and Ledda, L. 2020. Agricultural sustainability estimation of the European photovoltaic greenhouses. European Journal of Agronomy. 118, pp. 1-12. https://doi.org/10.1016/j.eja.2020.126074
Type | Article |
---|---|
Title | Agricultural sustainability estimation of the European photovoltaic greenhouses |
Authors | Cossu, M., Yano, A., Solinas, S., Deligios, P., Tiloca, M., Cossu, A. and Ledda, L. |
Abstract | The integration of the photovoltaic (PV) energy in the greenhouse farm has raised concerns on the agricultural sustainability of this specific agrosystem in terms of crop planning and management, due to the shading cast by the PV panels on the canopy. The PV greenhouse (PVG) can be classified on the basis of the PV cover ratio (PVR), that is the ratio of the projected area of PV panels to the ground and the total greenhouse area. In this paper, we estimated the yield of 14 greenhouse horticultural and floricultural crops inside four commercial PVG types spread in southern Europe, with PVR ranging from 25 to 100%. The aim of the work is to identify the PVG types suitable for the cultivation of the considered species, based on the best trade-off between PV shading and crop production. The daily light integral (DLI) was used to compare the light scenarios inside the PVGs to the crop light requirements, and estimate the potential yield. The structures with a PVR of 25% were compatible with the cultivation of all considered species, including the high light demanding ones (tomato, cucumber, sweet pepper), with an estimated negligible or limited yield reduction (below 25%). The medium light species (such as asparagus) with an optimal DLI lower than 17 mol m−2 d−1 and low light crops can be cultivated inside PVGs with a PVR up to 60%. Only low light demanding floricultural species with an optimal DLI lower than 10 mol m−2 d−1, such as poinsettia, kalanchoe and dracaena, were compatible inside PVGs with a PVR up to 100%. Innovative cropping systems should be considered to overcome the penalizing light scenarios of the PVGs with high PVR, also implementing LED supplementary lighting. This paper contributes to identify the sustainable PVG types for the chosen species and the alternative crop managements in terms of transplantation period and precision agriculture techniques, aimed at increasing the crop productivity and adaptability inside the PVG agrosystems. |
Keywords | Horticulture; Floriculture; Management ; Solar energy; Light |
Publisher | Elsevier |
Journal | European Journal of Agronomy |
ISSN | 1161-0301 |
Electronic | 1873-7331 |
Publication dates | |
Online | 24 May 2020 |
01 Aug 2020 | |
Publication process dates | |
Deposited | 26 May 2020 |
Submitted | 28 Oct 2019 |
Accepted | 14 Apr 2020 |
Output status | Published |
Accepted author manuscript | License |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.eja.2020.126074 |
Scopus EID | 2-s2.0-85085217553 |
Web of Science identifier | WOS:000537581800004 |
Language | English |
https://repository.mdx.ac.uk/item/88z3w
Download files
Accepted author manuscript
78
total views88
total downloads1
views this month3
downloads this month