Lehmann, Johannes2016-04-192016-04-192006Presented at the Biochar as a Soil Amendment Workshop at the World Congress of Soil Science Meeting, Philadelphia, PA, 14 July 2006http://hdl.handle.net/10919/67112Metadata only recordtext/plainen-USIn CopyrightSoilEcological restorationComacoZambiaEcosystem Farm/Enterprise Scale Field ScaleCitation