Li, Honghong Biochar amendment immobilizes lead in rice paddy soils and reduces its phytoavailability. [electronic resource] - Scientific reports 08 2016 - 31616 p. digital Publication Type: Journal Article; Research Support, Non-U.S. Gov't ISSN: 2045-2322 Standard No.: 10.1038/srep31616 doi Subjects--Topical Terms: Biological AvailabilityCharcoalIron--metabolismLead--metabolismOryza--metabolismSoil