SHIVAY, Y S; SINGH, R P; SHIV AKUMAR, B G. Effect of nitrogen on yield attributes, yield and quality of maize (Zea mays) in different cropping systems*. The Indian Journal of Agricultural Sciences, Delhi, India, v. 72, n. 3, 2014. Disponível em: https://epubs.icar.org.in/index.php/IJAgS/article/view/40755. Acesso em: 27 oct. 2025.