Yazar
Patrick Osaretin Erhabor
3 cilt bulundu.
Cilt sonuçları
Efficiency of resource use under small-scale irrigation technology in Nigeria
Patrick Osaretin Erhabor · Purdue University, Water Resources Research Center
114 sayfa · 1982
Economic aspects / Economic aspects of Lift irrigation / Lift irrigation
Economic appraisal of proven technologies of on-farm, adaptive research (OFAR) results 1987-91 for Benue State Agricultural and Rural Development Authority
Patrick Osaretin Erhabor · [The Authority
74 sayfa · 1993
Crop yields / Field experiments / Plant varieties