S.P. Datta, K.B. Polara, H.K. Sobhana and Muneshwar Singh, A. D. B. D. M. M. (2017). Boron Fractions in a Vertic Ustochrept as Influenced by Thirteen Years of Fertilization and Manuring. Journal of the Indian Society of Soil Science, 65(3). https://epubs.icar.org.in/index.php/JISSS/article/view/74725