ROSHAN CHAUDHARY; D. SINGH; V. NEPALIA. Productivity and economics of quality protein maize (Zea mays) as influenced by nitrogen levels, its scheduling and sulphur application. Indian Journal of Agronomy, [S. l.], v. 58, n. 3, p. 340–343, 2001. DOI: 10.59797/ija.v58i3.4196. Disponível em: https://pub.isa-india.in/index.php/ija/article/view/4196. Acesso em: 14 jul. 2026.