Influence of Exogenous Humic Acid on Heavy Metal Cd Activity in Clayey Farmland Soil
ZHANG Di-meng, HU Yan-ping, WANG Zhen-hua, LI Qing-yun, LI Guan-ya
Journal of Changjiang River Scientific Research Institute . 2020, (2): 68 -71 .  DOI: 10.11988/ckyyb.20181110

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