and N.G. Barua BRAB. Evaluation of Extractants and Critical Limits of Sulphur for Rapeseed in Acid Soils of Assam. JISSS [Internet]. 2016 Dec. 28 [cited 2026 Jun. 6];64(3). Available from: https://epubs.icar.org.in/index.php/JISSS/article/view/66423