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By: Coutinho, Flavia Paiva - Cavalcanti, Maria Auxiliadora de Queiroz. - Yano-Melo, A. M. (Adriana Mayumi)Type: ArticleIn: Acta Botanica BrasilicaVolume:Series:Issue:Date: 2010-03-01Page Range:Publication Info:Subjects: microorganism São Francisco River valley semiarid Soil amendments