HE Li-qun, ZHANG Qing-jin, WU Pei-dong, YU Xiao-ling, FENG Zeng-wei, YAO Qing. 2019: Effects of compost and biochar interaction on urban subsoil fertility and plant growth of lettuce. Journal of Southern Agriculture, 50(8): 1701-1708. DOI: 10.3969/j.issn.2095-1191.2019.08.08