Volume 75, Issue 1, October 2024, Pages 96–105
Guety Thierry Philippe1, Akoto Odi Faustin2, Kouamé Firmin Konan3, Affi Jeanne Bongoua-Devisme4, and KOUADIO Konan-Kan Hippolyte5
1 Soil Science and Sustainable Agriculture branch, UFR STRM, FHB University, Cocody, 22 BP 582 Abidjan 22, Côte d’Ivoire
2 Soil Science and Sustainable Agriculture branch, UFR STRM, FHB University, Cocody, 22 BP 582 Abidjan 22, Côte d’Ivoire
3 Agricultural Improvement Laboratory, UFR Agroforestry, UJLoG University, 12 BP V 25 Daloa 12, Côte d’Ivoire
4 Soil Science and Sustainable Agriculture branch, UFR STRM, FHB University, Cocody, 22 BP 582 Abidjan 22, Côte d’Ivoire
5 Université FHB, UFR des Sciences de la terre et des Ressources Minières (STRM), Laboratoire des Sciences du Sol, de l’Eau, des Géomatériaux, 22 BP 582 Abidjan 22, Côte d’Ivoire
Original language: English
Copyright © 2024 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.
Soil nutrient analysis is crucial for understanding the dynamics of agricultural fertility and productivity. Phosphorus (P) stands out among soil nutrients for its fundamental role in vital biological processes such as photosynthesis, respiration, and cell division. The study of variations in phosphorus content along toposequences, according to the specific topography of the lowlands, is proving to be a relevant approach to elucidate the complex interactions between abiotic factors and biogeochemical dynamics that govern soil fertility. This study aims to characterize spatial variations in soil assimilable phosphorus (P2O5) content as a function of edaphic parameters, using a multidimensional approach along the longitudinal and transverse axes of the lowland. This study was carried out in the locality of N’Zoupouri, in the department of Botro, about 40 km from Bouaké, in the Gbêkê region of central Côte d’Ivoire. The physicochemical analyses of the soil samples were carried out by French and international standard methods. The BORUTA algorithm used in this study can select the truly significant characteristics while ranking their importance. The result shows that potassium (K) content is a determining factor directly influencing this essential nutrient’s spatial variations and temporal changes. The close relationship between potassium and phosphorus in the soil highlights the importance of optimized agronomic management, in which potassium not only plays a supporting role but also acts as a key element in the release and stabilization of phosphorus that is available to plants.
Author Keywords: soil nutrients, phosphorus, lowland, statistical learning, Côte d’ivoire.
Guety Thierry Philippe1, Akoto Odi Faustin2, Kouamé Firmin Konan3, Affi Jeanne Bongoua-Devisme4, and KOUADIO Konan-Kan Hippolyte5
1 Soil Science and Sustainable Agriculture branch, UFR STRM, FHB University, Cocody, 22 BP 582 Abidjan 22, Côte d’Ivoire
2 Soil Science and Sustainable Agriculture branch, UFR STRM, FHB University, Cocody, 22 BP 582 Abidjan 22, Côte d’Ivoire
3 Agricultural Improvement Laboratory, UFR Agroforestry, UJLoG University, 12 BP V 25 Daloa 12, Côte d’Ivoire
4 Soil Science and Sustainable Agriculture branch, UFR STRM, FHB University, Cocody, 22 BP 582 Abidjan 22, Côte d’Ivoire
5 Université FHB, UFR des Sciences de la terre et des Ressources Minières (STRM), Laboratoire des Sciences du Sol, de l’Eau, des Géomatériaux, 22 BP 582 Abidjan 22, Côte d’Ivoire
Original language: English
Copyright © 2024 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
Soil nutrient analysis is crucial for understanding the dynamics of agricultural fertility and productivity. Phosphorus (P) stands out among soil nutrients for its fundamental role in vital biological processes such as photosynthesis, respiration, and cell division. The study of variations in phosphorus content along toposequences, according to the specific topography of the lowlands, is proving to be a relevant approach to elucidate the complex interactions between abiotic factors and biogeochemical dynamics that govern soil fertility. This study aims to characterize spatial variations in soil assimilable phosphorus (P2O5) content as a function of edaphic parameters, using a multidimensional approach along the longitudinal and transverse axes of the lowland. This study was carried out in the locality of N’Zoupouri, in the department of Botro, about 40 km from Bouaké, in the Gbêkê region of central Côte d’Ivoire. The physicochemical analyses of the soil samples were carried out by French and international standard methods. The BORUTA algorithm used in this study can select the truly significant characteristics while ranking their importance. The result shows that potassium (K) content is a determining factor directly influencing this essential nutrient’s spatial variations and temporal changes. The close relationship between potassium and phosphorus in the soil highlights the importance of optimized agronomic management, in which potassium not only plays a supporting role but also acts as a key element in the release and stabilization of phosphorus that is available to plants.
Author Keywords: soil nutrients, phosphorus, lowland, statistical learning, Côte d’ivoire.
How to Cite this Article
Guety Thierry Philippe, Akoto Odi Faustin, Kouamé Firmin Konan, Affi Jeanne Bongoua-Devisme, and KOUADIO Konan-Kan Hippolyte, “Topographical Influences on Soil Phosphorus Content in a Lowland: Insights from Random Forest Analysis,” International Journal of Innovation and Scientific Research, vol. 75, no. 1, pp. 96–105, October 2024.
