R. DINESH, A. N. GANESHAMURTHY, S. G. CHAUDHURI, and G. S. PRASAD, “Mobilization of rock phosphate phosphorus by amending with fresh cowdung, EDTA and earthworms in an acid soil*”, Indian J Agri Sci, vol. 72, no. 2, May 2014, Accessed: Oct. 28, 2025. [Online]. Available: https://epubs.icar.org.in/index.php/IJAgS/article/view/40704