GHOSAL, P K, B BHATTACHARYA, and D K BOGCHI. 2013. “Direct and Residual Effect of Rock Phosphatic Fertilizers on Rice (Oryza Sativa) Grown on Lateritic Land in Eastern India”. The Indian Journal of Agricultural Sciences 68 (4). https://epubs.icar.org.in/index.php/IJAgS/article/view/27485.