M.K. PORWAL; S.K. AGARWAL; A.K. KHOKHAR. Effect of planting methods and intercrops on productivity and economics of castor (Ricinus communis)-based intercropping systems. Indian Journal of Agronomy, [S. l.], v. 51, n. 4, p. 274–277, 2001. DOI: 10.59797/ija.v51i4.5028. Disponível em: https://pub.isa-india.in/index.php/ija/article/view/5028. Acesso em: 15 jul. 2026.