?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aufirst=S&rft.au=Shailaja%2C+S&rft.aulast=Shailaja&rft.atitle=Adsorption+and+desorption+of+phosphate+in+some+semi-arid+tropical+indian+vertisols&rft.title=Fertilizer+Research&rft.issn=0167-1731&rft.date=1990&rft.volume=23&rft.pages=87-96&rft.issue=2&rft.genre=article