B. Mandal, N. De, V.N. Mishra, S. Sharma and K.B. Polara, A.P.K.B.R.D.D.P.G.H. (2018) “Extractable Iron and Manganese in Soil as Influenced by Management Practices in Some Long-Term Experiments of India”, Journal of the Indian Society of Soil Science, 66(1). Available at: https://epubs.icar.org.in/index.php/JISSS/article/view/80709 (Accessed: 16 July 2026).