KARMAKAR S, MITTRA BN, GHOSH BC. Effect of paper-factory sludge on yield and nutrient uptake of rice (Oryza sativa). Indian J Agri Sci [Internet]. 2014 May 7 [cited 2025 Oct. 20];71(11). Available from: https://epubs.icar.org.in/index.php/IJAgS/article/view/40428