?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=Residual+phosphorus+and+management+strategy+for+grain+sorghum+on+a+vertisol&rft.title=Communications+in+Soil+Science+and+Plant+Analysis&rft.issn=0010-3624&rft.date=2000&rft.volume=31&rft.pages=3103-3112&rft.issue=19%2F20&rft.genre=article