Carbon and nitrogen assessment in soils under unburned sugarcane using NIRD-LS-SVM models Spécial semis direct Sa, S.M.O. /Feller, Christian Ferrao, M.F. Galdos, M.V. Bittar, C.M.M. Cerri, C.C. Poppi, R.J. EVOLUTION DES SOLS SOUS CULTURE CARBONE ORGANIQUE AZOTE STOCK METHODE D'ANALYSE SPECTROMETRIE INFRAROUGE ANALYSE DE REGRESSION ANALYSE MULTIVARIABLE CANNE A SUCRE SEMIS SYSTEME DE CULTURE PRATIQUE CULTURALE 2008 text https://www.documentation.ird.fr/hor/fdi:010057927 fdi:010057927 Sa S.M.O., Feller Christian, Ferrao M.F., Galdos M.V., Bittar C.M.M., Cerri C.C., Poppi R.J.. Carbon and nitrogen assessment in soils under unburned sugarcane using NIRD-LS-SVM models. In : . Spécial semis direct 2008, 145-147 Séminaire International : Les Sols Tropicaux en Semis Direct sous Couvertures Végétales : Symposium 1. Sequestration du Carbone, Antananarivo (MDG), 2007/12/03-08 EN ZONE TROPICALE BRESIL SAO PAULO