Effects of Nitrogen Forms on the Nitrogen Metabolism of Alfalfa ‘Gannong No. 3’ Varity at Different Growth Stages
YE Fang, LIU Xiao-jing, ZHANG Jin-xia
Acta Agrestia Sinica . 2015, (2): 285 -293 .  DOI: 10.11733/j.issn.1007-0435.2015.02.011