EL-AZAB, M. E. Effects of Foliar NPK Spraying with Micronutrients on Yield and Quality of Cowpea Plants. Asian Journal of Applied Sciences, [S. l.], v. 4, n. 2, 2016. Disponível em: https://ajouronline.com/index.php/AJAS/article/view/3595. Acesso em: 7 dec. 2022.