Acta Agrestia Sinica
Effectiveness Investigation and Influencing Factors Analysis of Alfalfa Rhizobia
SHI Shang-li, CAO Zhi-zhong, ZHAO Gui-qin
. 2007, (3): 221 -226 .  DOI: 10.11733/j.issn.1007-0435.2007.03.005