?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aufirst=P+B+I&rft.au=Akponikpe%2C+P+B+I&rft.aulast=Akponikpe&rft.atitle=Integrated+nutrient+management+of+pearl+millet+in+the+Sahel+combining+cattle+manure%2C+crop+residue+and+mineral+fertilizer&rft.title=Experimental+Agriculture&rft.issn=0014-4797&rft.date=2008&rft.volume=44&rft.pages=453-472&rft.issue=4&rft.genre=article