USMAN, M.; NANGERE, M.; AUDU, S. D. Advantages of Intercropping Cowpea with Maize Crop Under Different Tillage Methods and Inorganic Fertilizer Rates. International Journal For Research In Agricultural And Food Science, [S. l.], v. 4, n. 1, p. 18–33, 2018. Disponível em: https://gnpublication.org/index.php/afs/article/view/330. Acesso em: 22 dec. 2024.