Lehmann, Johannes2016-04-192016-04-192009Presented at a seminar hosted by Jeffrey Sachs and Pedro Sanchez, Columbia University, New York, NY, 20094466_Lehmann_Columbia_Panel_2009s.pdfhttp://hdl.handle.net/10919/68769This presentation discusses biochar as an example of the integration of household energy and soil improvement.application/pdfen-USIn CopyrightSoil organic matterSoil managementSoil nutrientsNutrient managementCarbonBiocharField ScalePresentation