?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aufirst=K&rft.au=Katayama%2C+K&rft.aulast=Katayama&rft.atitle=Analysis+of+Relationship+between+Root+Length+Density+and+Water+Uptake+by+Roots+of+Five+Crops+Using+Minirhizotron+in+the+Semi-Arid+Tropics&rft.title=JARQ+-+Japan+Agricultural+Research+Quarterly&rft.issn=0021-3551&rft.date=2000&rft.volume=34&rft.pages=81-86&rft.issue=2&rft.genre=article