SINGH, J P; SRIVASTAVA, O P. Role and requirement of sulphur in growth and tuber yield of potato (Solanum tuberosum). The Indian Journal of Agricultural Sciences, Delhi, India, v. 65, n. 4, 2012. Disponível em: https://epubs.icar.org.in/index.php/IJAgS/article/view/18231. Acesso em: 26 oct. 2025.