Enhancement of nodulation, N2-fixation and growth of faba bean (Vicia faba L.) by combined inoculation with Rhizobium leguminosarum bv. viceae and Azospirillum brasilense

1. Rodelas, B.
2. Gonzalez-Lopez, J.
3. Salmeron, V.
4. Pozo, C.
5. Martinez-Toledo, M.V.