Acta Agrestia Sinica
The Effect of NH 4 +-N on Anatomical Structure of Alfalfa Conducting Tissue
HAO Feng, LIU Xiao-jing, ZHANG Xiao-ling
Acta Agrestia Sinica . 2015, (5): 963 -967 .  DOI: 10.11733/j.issn.1007-0435.2015.05.009