K. Susan John, and R. T. Remya Raj. “Effect of Various Soil Amendments on Soil PH and Exchangeable Ca at Different Depths in the Identification of a Suitable Liming Material for Tannia (Xanthosoma Sagittifolium L. Schott) in an Ultisol, Kerala, India”. JOURNAL OF ROOT CROPS 48, no. 1 & 2 (March 20, 2024): 26–34. Accessed May 8, 2024. https://journal.isrc.in/index.php/jrc/article/view/625.