Field evaluation study of mono- and diammonium phosphate and superphosphate on Maize (Zea Mays L.) growth in five Quebec soils.

by Okalebo, John Robert.
Published 1973

Evaluating the effect of plant population densities and nitrogen application on the leaf area index of maize in a reclaimed wetland in Kenya

by Njuguna Catherine Waithira, Kamiri Hellen Wangechi, Okalebo John Robert, Ngetich Wilson, Kebeney Syphilline
Published 2016-12-01