and R. Chandra, Y. R. S. (2014). A Comparative Study on the Calibration Systems of Soil-Test based Fertilizer Recommendations for Toria (Brassica campestris L.) in a Mollisol. Journal of the Indian Society of Soil Science, 62(1). https://epubs.icar.org.in/index.php/JISSS/article/view/41245