Acta Agrestia Sinica
Nitrogen Fixation in Leymus chinensis Grassland in Northeast China
LI Yu-zhong, Redmann R. E., ZHU Ting-cheng, LI Jian-dong
. 2002, (3): 164 -166 .  DOI: 10.11733/j.issn.1007-0435.2002.03.002