John, K. S., Bharathan, R., Manikantan Nair, M. and Suja, G. (2013) “Soil Based Nutrient Management Plan for Tuber Crops in Pathanamthitta District of Kerala”, JOURNAL OF ROOT CROPS, 38(1), p. 51. Available at: https://journal.isrc.in/index.php/jrc/article/view/58 (Accessed: 21 November 2024).