Effect of Rhizobium spp. Inoculation on Growth and Grain Yield of Cowpea (Vigna unguiculata) Under Greenhouse and Ex Vitro Conditions
Cowpea (Vigna unguiculata (L.) Walp.) is an agriculturally important legume capable of establishing symbiotic associations with nitrogen-fixing bacteria. Biological nitrogen fixation through Rhizobium spp. represents a potential agroecological strategy for improving crop productivity while reducing dependence on inorga...