Risk Assessment of Heavy Metals in Sludge Biochar and Its Effects on Ryegrass Growth
MA Ruo-jun, JIA Hong-yu, DU Yi, YU Jun-long, ZHAO Xiao-dong, ZHANG Xiu-xia
Journal of Ecology and Rural Environment . 2022, (6): 802 -809 .  DOI: 10.19741/j.issn.1673-4831.2021.0372