Journal of
Soil Science and Environmental Management

  • Abbreviation: J. Soil Sci. Environ. Manage.
  • Language: English
  • ISSN: 2141-2391
  • DOI: 10.5897/JSSEM
  • Start Year: 2010
  • Published Articles: 304

Full Length Research Paper

Cadmium and lead contents in compost amended oxisols in the western highlands of Cameroon

Emile TEMGOUA
  • Emile TEMGOUA
  • Department of Soil Sciences, Faculty of Agronomy and Agricultural Sciences, University of Dschang, Republic of Cameroon.
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Georges Simplice KOUEDEU KAMENI
  • Georges Simplice KOUEDEU KAMENI
  • Department of Soil Sciences, Faculty of Agronomy and Agricultural Sciences, University of Dschang, Republic of Cameroon.
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Bernard Palmer KFUBAN YERIMA
  • Bernard Palmer KFUBAN YERIMA
  • Department of Soil Sciences, Faculty of Agronomy and Agricultural Sciences, University of Dschang, Republic of Cameroon.
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Rodrigue Emmanuel KENNE
  • Rodrigue Emmanuel KENNE
  • Department of Soil Sciences, Faculty of Agronomy and Agricultural Sciences, University of Dschang, Republic of Cameroon.
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Willy NOUBEP FOGANG
  • Willy NOUBEP FOGANG
  • Department of Soil Sciences, Faculty of Agronomy and Agricultural Sciences, University of Dschang, Republic of Cameroon.
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Quentin Donald TCHAMAKO MONTHE
  • Quentin Donald TCHAMAKO MONTHE
  • Department of Soil Sciences, Faculty of Agronomy and Agricultural Sciences, University of Dschang, Republic of Cameroon.
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Honorine NTANGMO TSAFACK
  • Honorine NTANGMO TSAFACK
  • Department of Soil Sciences, Faculty of Agronomy and Agricultural Sciences, University of Dschang, Republic of Cameroon.
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Dieudonné Lucien BITOM OYONO
  • Dieudonné Lucien BITOM OYONO
  • Department of Soil Sciences, Faculty of Agronomy and Agricultural Sciences, University of Dschang, Republic of Cameroon.
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  •  Received: 13 February 2021
  •  Accepted: 20 July 2021
  •  Published: 31 August 2021

Abstract

This study evaluates the Cadmium (Cd) and Lead (Pb) concentrations of an oxisols in a field where the plots had received one, two, and three year’s application of compost (20 t/ha), together with a control plot. The soil was sampled at depths of 0-10, 10-20, and 20-30 cm for analysis of total Cd and Pb principally, but also other soil physico-chemical properties. Cd and Pb bulk contents were measured by atomic absorption spectrophotometry after HNO3 and HCl digestion. Results indicate that organic carbon contents increased from the control (4.8 ± 0.9 %MS) to the one year cultivated plot (5.5 ± 0.8 %MS), then two years (5.7 ± 0.5 %MS) and lastly three years (5.9 ± 0.4 %MS), showing that compost increased the carbon contents of the soils. The soil acidity in the other hand decrease, the pH value ranged from 5.2 to 6.3. Total Nitrogen (N), Cd and Pb contents increased with the number of years of compost application with the following trends: 0.04 to 0.32 % for N, 0.018 to 0.101 mg/kg for Cd, and 0.73 to 1.74 mg/kg for Pb. Significant correlations were noted between Pb and organic carbon (p < 0.01), Pb and clay (p < 0.05). Compost application increased the concentration of the TMEs in soil.

Key words: Household wastes, compost, organic amendment, trace metallic elements, oxisols, Cameroon.