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Assessment of the Red Seaweed Gelidium sesquipedale By-Products as an Organic Fertilizer and Soil Amendment

Author

Listed:
  • Hajare Errati

    (Laboratory of Agri-Food and Health, Faculty of Sciences and Techniques, Hassan First University, B.P. 539, Settat 26000, Morocco)

  • Sanae Krimi Bencheqroun

    (National Institute of Agronomic Research, Avenue Ennasr, BP 415 Rabat Principale, Rabat 10090, Morocco)

  • Rachid Aboutayeb

    (National Institute of Agronomic Research, Avenue Ennasr, BP 415 Rabat Principale, Rabat 10090, Morocco)

  • Zhor Abail

    (National Institute of Agronomic Research, Avenue Ennasr, BP 415 Rabat Principale, Rabat 10090, Morocco)

  • Salim Lebbar

    (SETEXAM Company for the Study and Exploitation of Algae and Maritime Products, BP 210, Kenitra 14000, Morocco)

  • Khadija Dari

    (Laboratory of Agri-Food and Health, Faculty of Sciences and Techniques, Hassan First University, B.P. 539, Settat 26000, Morocco)

  • Lahoucine Hilali

    (Laboratory of Agri-Food and Health, Faculty of Sciences and Techniques, Hassan First University, B.P. 539, Settat 26000, Morocco)

Abstract

The agar extraction process of the red algae Gelidium sesquipedale generates a solid residue as the main by-product. However, this residue remains non-valorized, despite its potential as a fertilizer. This study aims to determine the value of G. sesquipedale residue as organic fertilizer and for soil amendments. An incubation test of G. sesquipedale residue in soils was performed to measure the nitrogen (N), phosphorus (P), and calcium (Ca) release. The potential fertilization effect of the residue was evaluated in a greenhouse on two crops: strawberry and corn. The amount of available P was high at the beginning of the incubation experiment. The amounts of nitrate–nitrogen (NO ₃ − -N) and available Ca increased over the incubation time. A high efficiency of fertilization using the residue at different concentrations was observed in both crops. Application of the residue enhanced crop growth. The fertilization effect was associated with increased macro- and micro-elements in the strawberry fruit’s N, Ca, iron (Fe), manganese (Mn), and zinc (Zn) and in the corn leaves’ N, P, magnesium (Mg), and Fe. Moreover, the residue was a good soil organic amendment as it enhanced the amount of organic matter (OM) and some macro- and micro-elements in the soil after plant harvest.

Suggested Citation

  • Hajare Errati & Sanae Krimi Bencheqroun & Rachid Aboutayeb & Zhor Abail & Salim Lebbar & Khadija Dari & Lahoucine Hilali, 2022. "Assessment of the Red Seaweed Gelidium sesquipedale By-Products as an Organic Fertilizer and Soil Amendment," Sustainability, MDPI, vol. 14(21), pages 1-13, October.
    • Handle: RePEc:gam:jsusta:v:14:y:2022:i:21:p:14217-:d:959037
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    References listed on IDEAS

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    1. Mohammad Rafiqul Islam & Sultana Bilkis & Tahsina Sharmin Hoque & Shihab Uddin & Mohammad Jahiruddin & Mohammad Mazibur Rahman & Abu Bakkar Siddique & Mohammad Anwar Hossain & Theodore Danso Marfo & S, 2021. "Mineralization of Farm Manures and Slurries under Aerobic and Anaerobic Conditions for Subsequent Release of Phosphorus and Sulphur in Soil," Sustainability, MDPI, vol. 13(15), pages 1-16, August.
    2. Renata Gaj & Piotr Szulc & Idzi Siatkowski & Hubert Waligóra, 2020. "Assessment of the Effect of the Mineral Fertilization System on the Nutritional Status of Maize Plants and Grain Yield Prediction," Agriculture, MDPI, vol. 10(9), pages 1-14, September.
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