RAJU, R A, and M NAGESHWARA REDDY. 2013. “Effect of Rock Phosphate Amended With Phosphate Solubilizing Bacteria and Farmyard Manure in Wetland Rice (Oryza Sativa)”. The Indian Journal of Agricultural Sciences 69 (6). https://epubs.icar.org.in/index.php/IJAgS/article/view/26812.