P. SOWJANYA, P. PRASUNA RANI, and P. MADHU VANI, “Available Nutrient Status and Fertility Capability Grouping of Soils of Bobbili Mandal, Vizianagaram District, Andhra Pradesh”, J. Indian Soc. Coastal Agric. Res., vol. 34, no. 1, pp. 25–32, Jun. 2016, Accessed: Jun. 23, 2026. [Online]. Available: https://epubs.icar.org.in/index.php/JISCAR/article/view/92699