BHATT, Pooja, SINGH, V.K Singh and KUMAR, Sanjeev. Optimizing soil health: comparative effects of humic acid, PGPR, and RDF on soil properties and fertility. Ecological Questions. Online. 7 February 2025. Vol. 36, no. 1, pp. 1-17. [Accessed 28 December 2025]. DOI 10.12775/EQ.2025.007.