has subject area clarisaCountry-170 Centrosema Centrosema pubescens Colombia Colombia Colombia Colombia Rhizobium Rhizobium Rhizobium centrosema pubescens humanities humanities physics physics rhizobium
keywords america america del sur bacterias nitrificantes caribe centrosema centrosema pubescens colombia cuba ecologia inoculacion leguminosas nodulacion oxisoles rhizobium simbiosis suelos ultisoles