Effects of different grazing and fertilization modes on Ca,Fe and Zn contents in leaves of Leymus chinensis in mildly degraded natural Leymus chinensis grassland
YAN Chunxia, ZHAO Man, LI Hao, ZHANG Lin, ZHANG Xiaoyan, QI Zhi
Journal of Northern Agriculture . 2022, (4): 83 -95 .  DOI: 10.12190/j.issn.2096-1197.2022.04.12