SINGH, AK; SYAMAL, MM. Nodules as influenced by Rhizobium inoculation, phosphorus application and their interactions in cowpea [Vigna unguiculata (L.) Walp]. Vegetable Science, [S. l.], v. 38, n. 01, p. 82–84, 2011. DOI: 10.61180/. Disponível em: https://www.isvsvegsci.in/index.php/vegetable/article/view/668.. Acesso em: 14 apr. 2026.