Verification of the agronomic efficiency of a rhizobium strain for cowpea (Vigna unguiculata) recommended for non-irrigated areas of the Northeast Brazil.
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The beneficial effects of BNF following legume inoculation with rhizobium are well known specially in the tropics where N availability in soils is hindered by adverse edafo-climatic conditions.
Palabras clave
Rizóbio, Caupi, Semi-árido, Feijão, Cowpeas