SHARMA, D N; KATARIA, D P; BAHL, V P. On Farm Trials of Tractor Drawn Multicrop Ridge-furrow and Flat Bed Seeding Machine for Rain fed and Irrigated Conditions. Journal of Agricultural Engineering, India, v. 38, n. 1, 2001. Disponível em: https://epubs.icar.org.in/index.php/JAE/article/view/14133. Acesso em: 30 jun. 2026.