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Weed and Grassland Community Structure, Biomass and Forage Value Across Crop Types and Light Conditions in an Organic Agrivoltaic System

Author

Listed:
  • Riccardo Dainelli

    (Institute of BioEconomy, National Research Council (IBE-CNR), Via G. Caproni 8, 50145 Florence, Italy)

  • Margherita Santoni

    (Institute of BioEconomy, National Research Council (IBE-CNR), Via G. Caproni 8, 50145 Florence, Italy)

  • Anita Maienza

    (Institute of BioEconomy, National Research Council (IBE-CNR), Via G. Caproni 8, 50145 Florence, Italy)

  • Sara Remelli

    (Department of Chemistry, Life Sciences and Environmental Sustainability, Università degli Studi di Parma, Viale delle Scienze 11/A, 43124 Parma, Italy)

  • Cristina Menta

    (Department of Chemistry, Life Sciences and Environmental Sustainability, Università degli Studi di Parma, Viale delle Scienze 11/A, 43124 Parma, Italy)

  • Davide Zanotti

    (REM Tec Srl, Via Cremona 62, 46041 Asola, Italy)

  • Giancarlo Ghidesi

    (REM Tec Srl, Via Cremona 62, 46041 Asola, Italy)

  • Aldo Dal Prà

    (Institute of BioEconomy, National Research Council (IBE-CNR), Via G. Caproni 8, 50145 Florence, Italy)

Abstract

Agrivoltaics represents a crucial technology and an innovative solution to promote sustainability. After a cropping season in an agrivoltaic system in Northern Italy, this study investigated the floristic composition and biomass of weed communities across three crops, evaluating their variation under shaded and full light conditions. In addition, the research assessed the role of uncultivated grassland areas in agrivoltaic-shaded conditions by quantifying their biomass and evaluating their potential feed value. Weed floristic diversity and biomass were surveyed at three different times. Soil and canopy parameters were analyzed in relation to photosynthetically active radiation (PAR). Grassland biomass was assessed after four different cuts and its suitability as a feed source was evaluated by the pastoral value and near infrared (NIR) spectroscopic analysis. Results showed that tomato had the lowest weed presence, and Setaria italica and Sorghum halepense were predominant in rice, while in durum wheat, higher nutrient availability favored Echinochloa crus-galli and Cirsium arvense . In weed community composition and biomass, no significant differences were observed for the effect of different light conditions (sun/shadow), and this may be attributed to their high environmental plasticity. PAR was strongly correlated with both soil and canopy temperatures. The analysis of floristic composition, biomass yield, pastoral value and nutritional quality of grassland vegetation indicated that spring cuts can be effectively used as forage, including for grazing. These findings suggest that integrating livestock activities could offer a win–win strategy for managing uncultivated areas within agrivoltaic systems, thereby enhancing their sustainability under organic farming practices.

Suggested Citation

  • Riccardo Dainelli & Margherita Santoni & Anita Maienza & Sara Remelli & Cristina Menta & Davide Zanotti & Giancarlo Ghidesi & Aldo Dal Prà, 2025. "Weed and Grassland Community Structure, Biomass and Forage Value Across Crop Types and Light Conditions in an Organic Agrivoltaic System," Sustainability, MDPI, vol. 17(18), pages 1-19, September.
    • Handle: RePEc:gam:jsusta:v:17:y:2025:i:18:p:8119-:d:1745753
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    References listed on IDEAS

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