SINGH, K N; SHARMA, D P. Effect of subsurface drain spacing and nitrogen level on yield and growth of upland cotton (Gossypium hirsutum) and pearl millet (Permisetum glaucum) in saline soil. The Indian Journal of Agricultural Sciences, Delhi, India, v. 65, n. 1, 2012. Disponível em: https://epubs.icar.org.in/index.php/IJAgS/article/view/17992. Acesso em: 20 oct. 2025.