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Agro-Science
Journal of Tropical Agriculture, Food, Environment and Extension
 

ISSN 1119-7455
   
 
         
 
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Article No 5 of Volume 3.1 (2004)
 
    
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EVALUATION OF PHYSICO-CHEMICAL PROPERTIES OF SOILS UNDER SELECTED AGRICULTURAL LAND UTILIZATION TYPES

G. U. Nnaji1, C. L. A. Asadu2, and J. S. C. Mbagwu2

1Department of Agronomy, Delta State University, Asaba Campus, Asaba.

2Department of Soil Science, University of Nigeria Nsukka.

 

 

ABSTRACT

A comparative study of the effects of cassava monocropping, cassava + maize intercropping, cassava + maize + pepper intercropping, maize + pepper intercropping and natural forest agricultural land utilization types on soil physical and chemical properties were investigated under farmer – managed conditions. Monocropping and/or inter cropping were unable to conserve soil physical and chemical properties. Soils under cultivation were significantly (P< 0.05) higher in bulk density but lower in total porosity, macro-porosity, water retention and saturated hydraulic conductivity relative to forest soil. Soil pH, base saturation and available P were significantly (P < 0.01) lower in the forest soil but organic carbon, total nitrogen, total exchangeable acidity and cation exchange capacity were higher in forest soil relative to cultivated soils. Significant differences (P < 0.01) were observed among cultivated soils in available P and total N.

           

Key words:       land utilization types, soil physico-chemical, soil conservation.

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Date:23/09/2018
 
     
 
 
 
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