Estimation of biological N2 fixation and its contribution to nitrogen balance in wetland rice fields Roger Pierre-Armand auteur aut IRD Ladha J.K. auteur aut IRD text conferencePaper eng text/pdf reformatted digital access specialized RIZIERE CYCLE DE L'AZOTE FIXATION BIOLOGIQUE DE L'AZOTE ARA LEGUMINEUSE ENGRAIS VERT APPLICATION AGRONOMIQUE METHODOLOGIE ECOLOGIE MICROBIOLOGIE DU SOL QUANTIFICATION N 15 084SYMBIO02 074MICFLO International Congress of Soil Science.Role of Biological Nitrogen Fixation in Sustainable Agriculture, 14., Kyoto (JPN), 1990/08/12-18 3-10 Role of biological nitrogen fixation in sustainable agriculture Manille IRRI 1990 https://www.documentation.ird.fr/hor/fdi:30178 [F B30178] https://www.documentation.ird.fr/hor/fdi:30178 https://horizon.documentation.ird.fr/exl-doc/pleins_textes/pleins_textes_5/b_fdi_23-25/30178.pdf IRD - Base Horizon / Pleins textes 1990-06-26 2006-05-30 fdi:30178 fre