info:oai:icrisat:262info:ofi/fmt:xml:xsd:journalNakamuraSNakamura, SHayashiKHayashi, KOmaeHOmae, HRamadjitaTRamadjita, TFatondjiDFatondji, DShinjoHShinjo, HSaidouA KSaidou, A KTobitaSTobita, SValidation of soil organic carbon dynamics model in the semi-arid tropics in Niger, West AfricaNutrient Cycling in Agroecosystems201189375-385article