Acta Agrestia Sinica
Effects of Phosphate Levels and Rhizobium Inoculation on the Root Morphology and Nitrogen-fixing Characteristic of Alfalfa
HAO Feng, LIU Xiao-jing, QI Min-xing, ZHANG Xiao-ling
Acta Agrestia Sinica . 2015, (4): 818 -822 .  DOI: 10.11733/j.issn.1007-0435.2015.04.022