Browsing Theses and Dissertations by Author "Umaya, Gregory O"
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The spatial and temporal distribution of the active roots of Cassia Siamea Lam. and zea mays l. (cv. Katumani composite B), in alley cropping under semi- arid conditions in Machakos district, Kenya
Umaya, Gregory O (Department of Botany, University of Nairobi, 1991)