BEHERA, S. K., & SINGH, D. (2010). Impact of continuous fertilizer use on fractions of manganese in soil and their contribution to availability and its uptake by maize (Zea mays)–wheat (Triticum aestivum) cropping system*. The Indian Journal of Agricultural Sciences, 80(4). https://epubs.icar.org.in/index.php/IJAgS/article/view/226