Research Article
Olaniyan J. O & Abdulmaliq S.
Abstract
A profile pit each was dug in two fallow lands under Gmelina arborea and natural bush fallow at the University of Ilorin, Teaching and Research farm in the southern guinea savannah to evaluate the effects of different fallow systems on the physical, chemical and morphological properties of the soils. Samples were collected from the pedogenic horizons of each profile at different depths and later condensed to form surface and subsurface soil samples. The result of the analysis shows that though the soil characteristics seemed to be better under Gmelina fallow, the differences in the physical and morphological properties were not statistically different under the two land use systems. Also, the Ca, K, Mg, Na, total acidity and base saturation (BS) were not significantly affected by the profile depth (surface and subsurface). However the soil reaction (pH) and effective cation exchange capacity were significantly affected by soil depths.