AND N.G. BARUA, B. Rajkonwar, A. Basumatary. Evaluation of Extractants and Critical Limits of Sulphur for Rapeseed in Acid Soils of Assam. Journal of the Indian Society of Soil Science, India, v. 64, n. 3, 2016. Disponível em: https://epubs.icar.org.in/index.php/JISSS/article/view/66423. Acesso em: 6 jun. 2026.