?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aufirst=W+T&rft.au=Mupangwa%2C+W+T&rft.aulast=Mupangwa&rft.atitle=Groundnut+yield+response+to+single+superphosphate%2C+calcitic+lime+and+gypsum+on+acid+granitic+sandy+soil&rft.title=Nutrient+Cycling+in+Agroecosystems&rft.issn=1385-1314&rft.date=2005&rft.volume=73&rft.pages=161-169&rft.issue=2-3&rft.genre=article