TRIPATHI, P N; SHARMA, N L. Evaluation of pyrite and gypsum as a source of sulphur in indian mustard (Brassica juncea)-rice (Oryza sativa) cropping sequence. The Indian Journal of Agricultural Sciences, Delhi, India, v. 64, n. 8, 2013. Disponível em: https://epubs.icar.org.in/index.php/IJAgS/article/view/29397. Acesso em: 23 oct. 2025.