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International Journal of Innovation and Scientific Research
ISSN: 2351-8014
 
 
Thursday 28 March 2024

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Valorization of invasive Sargassum spp. algal residues into compost in Côte d’Ivoire


[ Valorisation des résidus d'algues envahissantes Sargassum spp. en compost en Côte d’Ivoire ]

Volume 60, Issue 1, April 2022, Pages 1–7

 Valorization of invasive Sargassum spp. algal residues into compost in Côte d’Ivoire

Blé Alexis Tardy Kouassi1, N’Guessan Romeo Lozo2, Koffi Komoé3, and Kouadio Evariste Yao4

1 UFR Sciences biologiques, Université Peleforo Gon Coulibaly, BP 1328 Korhogo, Côte d’Ivoire
2 Laboratoire des Milieux Naturels et Conservation de la Biodiversité, UFR Biosciences, Université Félix-Houphouët-Boigny, 22 BP 582 Abidjan, Côte d’Ivoire
3 Laboratoire des Milieux Naturels et Conservation de la Biodiversité, UFR Biosciences, Université Félix-Houphouët-Boigny, 22 BP 582 Abidjan, Côte d’Ivoire
4 UFR Sciences biologiques, Université Peleforo Gon Coulibaly, BP 1328 Korhogo, Côte d’Ivoire

Original language: French

Copyright © 2022 ISSR Journals. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract


The present work aims to study the fertilizing power of the invasive algae Sargassum spp. in order to initiate their valorization as organic fertilizer in agriculture. The experimental device is composed of two pits of dimensions 1m x 1m with a depth of 1m, filled with 100 kg of rinsed and dried Sargassum spp. The pit intended for vermicomposting received 1 week after the beginning of the experiment 1.8 kg of mature earthworms (Eudrilus eugenia). The moisture content of the pits was maintained at 60-70%. Samples were taken at the beginning of the experiment and every 4 weeks for 4 months, for analysis at the PETROCI-Côte d'Ivoire laboratory to determine the initial physical and chemical parameters and during the decomposition of Sargassum spp. Regarding the physical and chemical characteristics of the residues, some compounds such as phosphorus (20315 ppm) and potassium (24488.8 ppm) have very high values with a slightly basic pH (7.7). During decomposition, nutrients are released and their content increases rapidly in the vermicompost before decreasing generally until the end of the experiment. The residues of Sargassum spp. considered as waste by the populations contain important nutrients (C, N, P, K, ….), thus possessing an important fertilizing power potentially favourable to an organic agriculture.

Author Keywords: Nutrient release, Decomposition, Sargassum spp., Compost, valorization.


How to Cite this Article


Blé Alexis Tardy Kouassi, N’Guessan Romeo Lozo, Koffi Komoé, and Kouadio Evariste Yao, “Valorization of invasive Sargassum spp. algal residues into compost in Côte d’Ivoire,” International Journal of Innovation and Scientific Research, vol. 60, no. 1, pp. 1–7, April 2022.