?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aufirst=M+R&rft.au=Rao%2C+M+R&rft.aulast=Rao&rft.atitle=Effects+of+pigeonpea+plant+population+and+row+arrangement+in+sorghum%2Fpigeonpea+intercropping&rft.title=Field+Crops+Research&rft.issn=0378-4290&rft.date=1983&rft.volume=7&rft.pages=203-212&rft.genre=article