SUD, K C; VERMA, B C; SHARMA, R C. Nitrogen and sulphur role in potato (Solanum tuberosum ) nutrition on brown hill soil of Shimla. The Indian Journal of Agricultural Sciences, Delhi, India, v. 69, n. 2, 2013. Disponível em: https://epubs.icar.org.in/index.php/IJAgS/article/view/26332. Acesso em: 28 oct. 2025.