Effects of Application Humic Acid on Yield, Nitrogen Absorption and Nitrogen Use Efficiency of Summer Maize
YUAN Tianyou,WANG Junzhong,JI Jianhua,NIU Junyi
Journal of Nuclear Agricultural Sciences . 2017, (4): 794 -802 .  DOI: 10.11869/j.issn.100-8551.2017.04.0794