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Posidonia -Based Compost and Dredged Sediment in Growing Media Improve Tolerance and Nutrient Uptake in Ornamental Plants

Author

Listed:
  • Francesca Vannucchi

    (National Council Research of Italy, Research Institute on Terrestrial Ecosystems (CNR-IRET), 56124 Pisa, Italy)

  • Cristina Macci

    (National Council Research of Italy, Research Institute on Terrestrial Ecosystems (CNR-IRET), 56124 Pisa, Italy)

  • Serena Doni

    (National Council Research of Italy, Research Institute on Terrestrial Ecosystems (CNR-IRET), 56124 Pisa, Italy)

  • Vincenzo Longo

    (National Council Research of Italy, Institute of Agricultural Biology and Biotechnology (CNR-IBBA), 56124 Pisa, Italy)

  • Francesca Ugolini

    (National Council Research of Italy, Institute of BioEconomy (CNR-IBE), 50019 Firenze, Italy)

  • Grazia Masciandaro

    (National Council Research of Italy, Research Institute on Terrestrial Ecosystems (CNR-IRET), 56124 Pisa, Italy)

  • Eleonora Peruzzi

    (National Council Research of Italy, Research Institute on Terrestrial Ecosystems (CNR-IRET), 56124 Pisa, Italy)

Abstract

Because of the high costs and environmental impacts of peat and chemical fertilizers, the search for sustainable alternatives is increasing. Posidonia -based compost (C) has been widely tested as a growing media, while the combination with decontaminated dredged sediments (S) has only recently been studied. Moreover, little information is available on the relationship between plants and growing media. In this work, the suitability of growing media (CS) composed of 100% C, 70% C + 30% S and 30% C + 70% S were investigated compared to peat, for ornamental plants ( Elaeagnus macrophylla , Photinia × fraseri and Viburnum tinus ). Plant growth, physiological, nutritional and antioxidant responses were also investigated. The CS were compliant with current legislation on growing media. The Cu (+60%; +70%), Mg (+11%; +23%) and Ca (+66%; +72%) concentrations were higher in CS with 30% and 70% of S, respectively, than peat. The plants growing in CS had lower antioxidant activities than those on peat, suggesting a better plant tolerance to abiotic stress. In conclusion, the use of CS growing media, especially those with 30% and 70% of S, can be a valuable strategy to replace peat and reduce the application of fertilizers.

Suggested Citation

  • Francesca Vannucchi & Cristina Macci & Serena Doni & Vincenzo Longo & Francesca Ugolini & Grazia Masciandaro & Eleonora Peruzzi, 2022. "Posidonia -Based Compost and Dredged Sediment in Growing Media Improve Tolerance and Nutrient Uptake in Ornamental Plants," Sustainability, MDPI, vol. 14(21), pages 1-14, November.
    • Handle: RePEc:gam:jsusta:v:14:y:2022:i:21:p:14419-:d:962231
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    References listed on IDEAS

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    1. Francesco Fabiano Montesano & Concetta Eliana Gattullo & Angelo Parente & Roberto Terzano & Massimiliano Renna, 2018. "Cultivation of Potted Sea Fennel, an Emerging Mediterranean Halophyte, Using a Renewable Seaweed-Based Material as a Peat Substitute," Agriculture, MDPI, vol. 8(7), pages 1-12, June.
    2. Giancarlo Renella, 2021. "Recycling and Reuse of Sediments in Agriculture: Where Is the Problem?," Sustainability, MDPI, vol. 13(4), pages 1-12, February.
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