[ Diagnostic de la fertilité chimique des principaux sols rizicoles de la Vallée du Sourou au Burkina Faso ]
Volume 38, Issue 2, December 2022, Pages 470–480
Jean Ouedraogo1, Constantin Kpoda Kpierouhib2, Pouya Mathias Bouinzemwendé3, Sansan Youl4, and Serme Idriss5
1 International Fertilizer Development Center, 11 BP 82 Ouaga 11, Burkina Faso
2 International Fertilizer Development Center, 11 BP 82 Ouaga 11, Burkina Faso
3 Institut de l’Environnement et de Recherches Agricoles (INERA) du , Centre National de la Recherche Scientifique et Technologique, Institut de l’Environnement et de Recherches Agricoles (CNRST), 04 BP 8645, Ouagadougou 04, Burkina Fa, Burkina Faso
4 International Fertilizer Development Center, 11 BP 82 Ouaga 11, Burkina Faso
5 Institut de l’Environnement et de Recherches Agricoles (INERA) du , Centre National de la Recherche Scientifique et Technologique, Institut de l’Environnement et de Recherches Agricoles (CNRST), 04 BP 8645, Ouagadougou 04, Burkina Fa, Burkina Faso
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.
The diagnosis of fertility is a prerequisite for the formulation of balanced and site-specific fertilizer recommendations. To do this, omission trials were set up on 60 plots in the Sourou Valley. The trials were divided into Hydromorphic tropical eutrophic ferruginous brown soils and Vertic tropical eutrophic ferruginous brown soils. Each trial included 06 treatments: 0N-0P-0K, 0N-30P-40K, 120N-0P-40K, 120N-30P-0K, 120N-30P-40K and 120N-30P-40K + 2.5 t.ha-1 of organic matter. Grain and straw yields, soil chemical characteristics and plant nitrogen, phosphorus and potassium exports were determined. The results showed that Vertic tropical eutrophic ferruginous brown soils are slightly richer in carbon, nitrogen and phosphorus than into Hydromorphic tropical eutrophic ferruginous brown soils. Indeed, the initial nitrogen, phosphorus and potassium contents calculated from the exports were respectively 71.20 kg.ha-1, 30.02 kg.ha-1 and 187.19 kg.ha-1 for the Vertic tropical eutrophic ferruginous brown soils, against 52.47 kg.ha-1, 19.10 kg.ha-1 and 159.62 kg.ha-1 for the into Hydromorphic tropical eutrophic ferruginous brown soils. Furthermore, the results showed that nitrogen and phosphorus are the two limiting nutrients for rice production on these two soil types. The internal N use efficiency was 80.59 kg grain.kg-1 N on into Hydromorphic tropical eutrophic ferruginous brown soils and 60.09 kg grain.kg-1 N for Vertic tropical eutrophic ferruginous brown soils. The results of this diagnostic will be used as a basis for the formulation of balanced and site-specific fertilizer recommendations.
Author Keywords: Omissions trials, initial fertility, internal efficiency, irrigated rice, nutrient uptake, limiting nutrients.
Volume 38, Issue 2, December 2022, Pages 470–480
Jean Ouedraogo1, Constantin Kpoda Kpierouhib2, Pouya Mathias Bouinzemwendé3, Sansan Youl4, and Serme Idriss5
1 International Fertilizer Development Center, 11 BP 82 Ouaga 11, Burkina Faso
2 International Fertilizer Development Center, 11 BP 82 Ouaga 11, Burkina Faso
3 Institut de l’Environnement et de Recherches Agricoles (INERA) du , Centre National de la Recherche Scientifique et Technologique, Institut de l’Environnement et de Recherches Agricoles (CNRST), 04 BP 8645, Ouagadougou 04, Burkina Fa, Burkina Faso
4 International Fertilizer Development Center, 11 BP 82 Ouaga 11, Burkina Faso
5 Institut de l’Environnement et de Recherches Agricoles (INERA) du , Centre National de la Recherche Scientifique et Technologique, Institut de l’Environnement et de Recherches Agricoles (CNRST), 04 BP 8645, Ouagadougou 04, Burkina Fa, Burkina Faso
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 diagnosis of fertility is a prerequisite for the formulation of balanced and site-specific fertilizer recommendations. To do this, omission trials were set up on 60 plots in the Sourou Valley. The trials were divided into Hydromorphic tropical eutrophic ferruginous brown soils and Vertic tropical eutrophic ferruginous brown soils. Each trial included 06 treatments: 0N-0P-0K, 0N-30P-40K, 120N-0P-40K, 120N-30P-0K, 120N-30P-40K and 120N-30P-40K + 2.5 t.ha-1 of organic matter. Grain and straw yields, soil chemical characteristics and plant nitrogen, phosphorus and potassium exports were determined. The results showed that Vertic tropical eutrophic ferruginous brown soils are slightly richer in carbon, nitrogen and phosphorus than into Hydromorphic tropical eutrophic ferruginous brown soils. Indeed, the initial nitrogen, phosphorus and potassium contents calculated from the exports were respectively 71.20 kg.ha-1, 30.02 kg.ha-1 and 187.19 kg.ha-1 for the Vertic tropical eutrophic ferruginous brown soils, against 52.47 kg.ha-1, 19.10 kg.ha-1 and 159.62 kg.ha-1 for the into Hydromorphic tropical eutrophic ferruginous brown soils. Furthermore, the results showed that nitrogen and phosphorus are the two limiting nutrients for rice production on these two soil types. The internal N use efficiency was 80.59 kg grain.kg-1 N on into Hydromorphic tropical eutrophic ferruginous brown soils and 60.09 kg grain.kg-1 N for Vertic tropical eutrophic ferruginous brown soils. The results of this diagnostic will be used as a basis for the formulation of balanced and site-specific fertilizer recommendations.
Author Keywords: Omissions trials, initial fertility, internal efficiency, irrigated rice, nutrient uptake, limiting nutrients.
Abstract: (french)
Le diagnostic de la fertilité est un préalable pour la formulation de recommandation d’engrais équilibrée et spécifique au site. Pour ce faire, des essais soustractifs ont été mis en place sur 60 parcelles à la Vallée du Sourou. Les essais ont été répartis sur les sols bruns eutrophes ferrugineux tropicaux hydromorphes (BEFH) et les sols b sols bruns eutrophes ferrugineux tropicaux hydromorphes vertiques (BEHV). Chaque essai comportait 06 traitements: 0N-0P-0K, 0N-30P-40K, 120N-0P-40K, 120N-30P-0K, 120N-30P-40K et 120N-30P-40K + 2,5 t.ha-1 de matière organique. Les rendements grains et pailles, les caractéristiques chimiques des sols et les exportations en azote, phosphore et potassium des plantes ont été déterminés. Les résultats ont montré que les sols BEHV sont légèrement plus riches en carbone, en azote et en phosphore que les sols BEFH. En effet, les teneurs initiales en azote, en phosphore et en potassium calculées à partir des exportations ont été respectivement de 71,20 kg.ha-1, 30,02 kg.ha-1 et 187,19 kg.ha-1 pour le sol BEHV, contre 52,47 kg.ha-1, 19,10 kg.ha-1 et 159,62 kg.ha-1 pour le sol BEFH. Par ailleurs, les résultats ont montré que l’azote et le phosphore constituent les deux éléments nutritifs limitant la production du riz sur ces deux types de sols. L’efficience interne de l’utilisation de l’azote a été de 80,59 kg grain.kg-1 N sur le sol BEFH et 60,09 kg grain.kg-1 N pour le sol BEHV. Les résultats de ce diagnostic serviront de base pour la formulation de recommandations d’engrais équilibrées et spécifiques au site.
Author Keywords: Essais soustractifs, fertilité initiale, efficience interne, riziculture irriguée.
How to Cite this Article
Jean Ouedraogo, Constantin Kpoda Kpierouhib, Pouya Mathias Bouinzemwendé, Sansan Youl, and Serme Idriss, “Diagnosis of the chemical fertility of the main rice-growing soils of the Sourou Valley in Burkina Faso,” International Journal of Innovation and Applied Studies, vol. 38, no. 2, pp. 470–480, December 2022.
