?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aufirst=K+L&rft.au=Sahrawat%2C+K+L&rft.aulast=Sahrawat&rft.atitle=A+fertility+index+for+submerged+rice+soils&rft.title=Communications+in+Soil+Science+and+Plant+Analysis&rft.issn=0010-3624&rft.date=2002&rft.volume=33&rft.pages=229-236&rft.issue=1-2&rft.genre=article