Location of the Study Area
The soil samples were collected from two borrow pits around Afe Babalola
University, Ado Ekiti. The first borrow pit is along Afe Babalola-Ijan
road and second borrow pit is along Afe Babalola farm. Ado-Ekiti (urban
township capital of Ekiti state, Nigeria) lies on latitude
70 37’North of the equator and on longitude
50 13’East of the Greenwich Meridian. It stands on the
altitude of about 455 meters above the sea level. The first borrow pit
(borrow pit 1) lies on latitude 70 35’North of the
equator and on longitude 50 18’ East of the Greenwich
meridian with altitude 377.3m. The second borrow pit (borrow pit 2) lies
on latitude 70 36’North of the equator and on
longitude 50 18’ East of the Greenwich meridian. The
altitude is 357m. The soil samples were taken at a depth of 1.0m from
the surface.