?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=Long-term+lowland+rice+and+arable+cropping+effects+on+carbon+and+nitrogen+status+of+some+semi-arid+tropical+soils&rft.title=Current+Science&rft.date=2005&rft.volume=89&rft.pages=2159-2163&rft.issue=12&rft.genre=article