Uzoh, I. and Babalola, O. . (2020) “Review on increasing iron availability in soil and its content in cowpea (<i>Vigna unguiculata</i>) by plant growth promoting rhizobacteria”, African Journal of Food, Agriculture, Nutrition and Development, 20(3), pp. 15779–15799. doi: 10.18697/ajfand.91.18530.