SHARMA, S K; TOMAR, R K; GANGAWAR, K S. Effect of crop-establishment and tillage practices on yield and economics of irrigated rice (Oryza sativa) - wheat (Triticum aestivum) system. The Indian Journal of Agricultural Sciences, Delhi, India, v. 65, n. 9, 2012. Disponível em: https://epubs.icar.org.in/index.php/IJAgS/article/view/19010. Acesso em: 28 oct. 2025.