BHATT, POOJA; SINGH, V K. Effect of humic acid on soil properties and crop production– A review. The Indian Journal of Agricultural Sciences, Delhi, India, v. 92, n. 12, p. 1423–1430, 2022. DOI: 10.56093/ijas.v92i12.124948. Disponível em: https://epubs.icar.org.in/index.php/IJAgS/article/view/124948. Acesso em: 24 oct. 2025.