[ Productivité en eau du soja (Glycine max) sous application combinée de biochar et de fumier dans la commune de Parakou ]
Volume 46, Issue 4, October 2025, Pages 665–669
Pierre G. TOVIHOUDJI1, Berteulot L. S. Dossounon2, and Sissou Zakari3
1 Faculté d'Agronomie, Université de Parakou, BP 123, Parakou, Benin
2 University of Parakou, Faculty of Agronomy (UP, FA), Laboratory of Hydraulics and Environmental Modeling (HydroModE Lab), 03 PO Box 351 Parakou, Benin
3 University of Parakou, Faculty of Agronomy (UP, FA), Laboratory of Hydraulics and Environmental Modeling (HydroModE Lab), 03 PO Box 351 Parakou, Benin
Original language: French
Copyright © 2025 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.
Numerous innovative climate-smart agricultural practices are being implemented across Africa, contributing to increased productivity and enhanced resilience. However, their efficiency remains relatively low at the continental and even regional levels. This study aims to assess the water use efficiency (WUE) of soybean (Glycine max) under the combined application of biochar and manure. A randomized complete block design (RCBD) with three replications was used for the experiment. The factor studied was organic amendment, with four levels: no amendment (T0), manure (T1), biochar (T2), and a combination of biochar and manure (T3). The methodology included rainfall and soil moisture measurements to monitor water availability in each experimental unit. Data on growth and yield parameters were collected. Analysis showed that manure, particularly when combined with biochar, significantly improved growth parameters. Furthermore, the biochar-manure treatment enhanced soybean grain yield by up to 37.34% compared to the control (i.e., 1642 kg/ha). It also resulted in the highest water use efficiency, with an improvement of up to 37.03%. Therefore, applying manure combined with biochar appears beneficial for soybean cultivation. The combination reduces nutrient loss by limiting leaching, thanks to the biochar’s retention capacity. Further research involving different application rates of biochar and manure would help determine the optimal quantities for maximizing water use efficiency.
Author Keywords: Biochar, Efficiency, Manure, Soybean, Parakou.
Volume 46, Issue 4, October 2025, Pages 665–669
Pierre G. TOVIHOUDJI1, Berteulot L. S. Dossounon2, and Sissou Zakari3
1 Faculté d'Agronomie, Université de Parakou, BP 123, Parakou, Benin
2 University of Parakou, Faculty of Agronomy (UP, FA), Laboratory of Hydraulics and Environmental Modeling (HydroModE Lab), 03 PO Box 351 Parakou, Benin
3 University of Parakou, Faculty of Agronomy (UP, FA), Laboratory of Hydraulics and Environmental Modeling (HydroModE Lab), 03 PO Box 351 Parakou, Benin
Original language: French
Copyright © 2025 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
Numerous innovative climate-smart agricultural practices are being implemented across Africa, contributing to increased productivity and enhanced resilience. However, their efficiency remains relatively low at the continental and even regional levels. This study aims to assess the water use efficiency (WUE) of soybean (Glycine max) under the combined application of biochar and manure. A randomized complete block design (RCBD) with three replications was used for the experiment. The factor studied was organic amendment, with four levels: no amendment (T0), manure (T1), biochar (T2), and a combination of biochar and manure (T3). The methodology included rainfall and soil moisture measurements to monitor water availability in each experimental unit. Data on growth and yield parameters were collected. Analysis showed that manure, particularly when combined with biochar, significantly improved growth parameters. Furthermore, the biochar-manure treatment enhanced soybean grain yield by up to 37.34% compared to the control (i.e., 1642 kg/ha). It also resulted in the highest water use efficiency, with an improvement of up to 37.03%. Therefore, applying manure combined with biochar appears beneficial for soybean cultivation. The combination reduces nutrient loss by limiting leaching, thanks to the biochar’s retention capacity. Further research involving different application rates of biochar and manure would help determine the optimal quantities for maximizing water use efficiency.
Author Keywords: Biochar, Efficiency, Manure, Soybean, Parakou.
Abstract: (french)
De nombreuses pratiques agricoles climato-intelligentes innovantes sont mises en œuvre en Afrique et permettent d’augmenter la productivité et de développer la résilience, mais restent relativement non efficiente à l’échelle continentale ou même régionale. Cette étude tente d’évaluer l’efficience d’utilisation de l’eau (EUE) du soja (Glycine max) sous application combinée de biochar et de fumier. A cet effet le dispositif expérimental utilisé a été un bloc aléatoire complet (BAC) avec trois répétitions. Le facteur étudié a été l’amendement organique avec quatre (04) niveaux: sans amendement organique (T0), fumier (T1), biochar (T2) et biochar combiné au fumier (T3). La méthodologie adoptée pour atteindre notre objectif a porté sur des mesures pluviométriques et d’humidités du sol pour voir l’évolution du stock en eau de chaque unité expérimentale. Les données sur les paramètres de croissance et les paramètres de rendement ont été collectés. D’après les analyses, le fumier et surtout le fumier combiné au biochar ont amélioré les paramètres de croissance. En outre, le traitement de fumier combiné au biochar a amélioré le rendement en grain du soja jusqu’à 37.34% comparativement à un sol sans amendement soit 1642 kg/ha. Le fumier combiné au biochar a été le traitement qui a permis une meilleure efficience d’utilisation de l’eau avec une amélioration jusqu’à 37.03%. Ainsi, l’application du fumier combiné au biochar semble nécessaire pour la culture du soja. Le Biochar combiné avec du fumier (source d’élément nutritif) réduit la perte de ces derniers en limitant le lessivage. Il serait intéressant d’appliquer différente quantité de biochar et de fumier afin de trouver la quantité optimale qui permettrait une meilleure efficience d’utilisation de l’eau.
Author Keywords: Biochar, efficience, fumier, soja, Parakou.
How to Cite this Article
Pierre G. TOVIHOUDJI, Berteulot L. S. Dossounon, and Sissou Zakari, “Water productivity of soybean (Glycine max) under combined application of biochar and manure in the commune of Parakou,” International Journal of Innovation and Applied Studies, vol. 46, no. 4, pp. 665–669, October 2025.
