?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aufirst=J+S&rft.au=Kanwar%2C+J+S&rft.aulast=Kanwar&rft.atitle=Micronutrient+needs+of+tropical+food+crops&rft.title=Fertilizer+Research&rft.issn=0167-1731&rft.date=1985&rft.volume=7&rft.pages=43-67&rft.issue=1-3&rft.genre=article