Heavy Metal Contamination Potential in Agricultural Soils under Dynamic Cropping Systems in Large-Scale Farms in Western Kenya
Rattachement africain : Kenya. Niveau de preuve : code pays fourni par la source.
Le résumé fourni par la source
Sustainable soil quality management is one of the most important approaches in ensuring high agricultural productivity and safe quality produce. With the current rising application of inorganic fertilizers and chemical pesticides, degradation of agricultural soils is becoming a global phenomenon, attracting attention of many researchers. The present study hypothesized that with the increasing chemical pesticide and fertilizer application under various cropping systems, there is potential for increased toxicity of heavy metals residues above background concentrations and their associated complexes and intermedia transfer between environmental compartments in large-scale farms in Kenya. Using standard methods, 204 soil samples collected from five distinct cropping systems were analyzed for PH, Electrical Conductivity, exchangeable base cations (Na+, Mg2+, K+, Ca2+), Cu, Pb, Zn, Cd, Fe, Cr, Total Organic Carbon and Total N and data analyzed using Genstart, version 23.1. The concentrations of Zn, Cu, Pb and Fe were lower than the globally acceptable levels hence less soil pollution threat (NPI<1). However, Cd concentration exceeded permitted levels (NPI>1). Among the cropping systems considered, Maize and sugarcane cropping systems were the most susceptible to heavy metal pollution. In conclusion, the rank order of the pollution potential associated with heavy metal contamination in the study area is Cd>Zn>Pb>Cu>Cr>Fe.
Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.
Le contrôle bibliographique ouvert
DOI retrouvé dans Crossref DOI retrouvé ; titre concordant.
- Titre Crossref
- Heavy Metal Contamination Potential in Agricultural Soils under Dynamic Cropping Systems in Large-Scale Farms in Western Kenya
- Date Crossref
- 09/08/2024
- Éditeur
- MDPI AG
- Type
- posted-content
Ce recoupement confirme des métadonnées liées au DOI. Il ne confirme ni la méthode ni les conclusions de l’étude, et il ne compte pas comme une seconde source scientifique indépendante.
Où se fait cette recherche
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Masinde Muliro University of Science and Technology Department of Biological Sciences Kakamega, Kenya (code pays fourni par la source)Université ou école supérieure
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Jaramogi Oginga Odinga University of Science and Technology Department of Physical Sciences Kenya (code pays fourni par la source)Université ou école supérieure
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Pharmacy and Poisons Board Kenya (code pays fourni par la source)Organisme public
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University of Eldoret Department of Environmental Health University of Eldoret, Kenya (code pays fourni par la source)Université ou école supérieure
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Technical University of Kenya Department of Geochemistry and Environmental Chemistry P.O. Box 52428 -00200 Nairobi, Kenya (code pays fourni par la source)Université ou école supérieure
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Pest Control Products Board Kisumu, Kenya (ville ou établissement reconnu, pays non nommé)Institution
Department of Biological Sciences — Masinde Muliro University of Science and Technology (Kakamega, Kenya), Department of Physical Sciences — Jaramogi Oginga Odinga University of Science and Technology (Kenya) et Pharmacy and Poisons Board (Kenya), avec 3 autres affiliations. Pays d’affiliation : Kenya.
Une affiliation ne permet pas de déduire la nationalité d’un auteur.