?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aufirst=P+T+C&rft.au=Nambiar%2C+P+T+C&rft.aulast=Nambiar&rft.atitle=Reaction+of+ferric+iron+by+siderophore+produced+by+a+bradyrhizobium+strain&rft.title=Journal+of+Plant+Nutrition&rft.issn=0190-4167&rft.date=1990&rft.volume=13&rft.pages=275-284&rft.issue=2&rft.genre=article