Effects of Nitrogen Application on Nitrogen Metabolism and Nitrogen Accumulation of Alfalfa(Medicago Sativa)
LIU Xiaojing, ZHANG Jinxia, YE Fang, QI Peng
Journal of Nuclear Agricultural Sciences . 2015, (7): 1399 -1405 .  DOI: 10.11869/j.issn.100-8551.2015.07.1399