John, K. Susan, R. Bharathan, M. Manikantan Nair, and G. Suja. “Soil Based Nutrient Management Plan for Tuber Crops in Pathanamthitta District of Kerala”. JOURNAL OF ROOT CROPS 38, no. 1 (July 25, 2013): 51. Accessed May 15, 2024. https://journal.isrc.in/index.php/jrc/article/view/58.