MATERIAL AND METHODS
Experiment site
The experiment was conducted on a guinea
grass (Panicum maximum) pasture
established in 2000 at the Teaching and
Research Farm of the Department of Crop
Science Faculty of Agriculture University of
Nigeria, Nsukka. Nsukka is located at
Latitude 060 52`N and longitude 070 24`E,
and altitude of 447.2 m above sea level. It is
characterized by the low land humid tropical
conditions. The soil is classified as an
Ultisol (Asiegbu 1989).