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Journal of Applied Sciences
  Year: 2007 | Volume: 7 | Issue: 20 | Page No.: 3045-3050
DOI: 10.3923/jas.2007.3045.3050
 
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Impact of Mechanized Farming on the Heavy Metals Load of an Ultisol Located in the Niger Delta Region of Nigeria
G.A. Ebong, H.S. Etuk and J.P. Essien

Abstract:
Top soil samples from a mechanized farm located in Awot Uta, Akwa Ibom State in the Niger Delta Region of Nigeria were analyzed using atomic absorption spectrophotometer for their Cr; Cd; Fe; Cu; Zn and Pb concentrations. Top soil samples were also collected from a local farm situated close to the study area and analyzed for their metal contents. The following mean concentrations were observed in the mechanized farm: 0.343±0.200 mg kg-1 for Cr; 0.012±0.006 mg kg-1 for Cd; 0.959±8.814 mg kg-1 for Fe; 0.031± 0.011 mg kg-1 for Cu; 0.169±0.041 mg kg-1 for Zn and 0.010±0.005 mg kg-1 for Pb. While the local farm recorded the following concentrations: 0.115±0.005 mg kg-1 for Cr; 0.001±0.001 mg kg-1 for Cd; 22.115±3.351 mg kg-1 for Fe; 0.015±0.004 mg kg-1 for Cu; 0.098±0.008 mg kg-1 for Zn and 0.001±0.001 mg kg-1 for Pb. Generally, the metal levels obtained in the mechanized farm were higher than their corresponding levels in the local farm. Although the metals loads were within the recommended standards for agricultural soils, the elevated loads obtained from the mechanized farmland is of serious health implications because of the attendant metals effects on the food chain. Coefficient of variations were also calculated for the metal concentrations in the mechanized farm and results obtained indicated Cr as having the highest CV value (58%) while Fe had the lowest (22%).
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How to cite this article:

G.A. Ebong, H.S. Etuk and J.P. Essien, 2007. Impact of Mechanized Farming on the Heavy Metals Load of an Ultisol Located in the Niger Delta Region of Nigeria. Journal of Applied Sciences, 7: 3045-3050.

DOI: 10.3923/jas.2007.3045.3050

URL: https://scialert.net/abstract/?doi=jas.2007.3045.3050

 
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