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Influence Of Topography And Land Utilization Types On Soil Fertility Trend...
Influence of topographic (crest, upper slope, middle slope and lower slope) position and land utilization types (rubber and oil palm plantations; one year and five years old... -
Deforestation and Soil Fertility in the Ogoja Area of Cross River State.
Ukpong, I. E. (ed) Geography and the Nigerian Environment. The Nigerian Geographical Association.