?url_ver=Z39.88-2004&rft_id=0741&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Rechel%2C+E.A.&rft.aufirst=E.A.&rft.aulast=Rechel&rft.volume=4&rft.title=Journal+of+Production+Agriculture&rft.date=1991&rft.issue=2&rft.pages=241-246&rft.atitle=Alfalfa+yield+as+affected+by+harvest+traffic+and+soil+compaction+in+a+sandy+loam+soil&rft.genre=article