1 كتب إلكترونية بواسطة Uzo M. Mokwunye
Uzo M. Mokwunye & Paul L.G. Vlek: Management of Nitrogen and Phosphorus Fertilizers in Sub-Saharan Africa
Food security, one of the basic human rights, seems to be ever eluding the people of sub-Saharan Africa. With each occurrence of crop failure, agriculturalists around the world reawaken to the challe …
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