SINGH, L N; SINGH, R.K K; SINGH, A H; CHHANGTE, Z. Efficacy of urea in integration with Azolla and vermicompost in rainfed rice (Oryza sativa) production and their residual effect on soil properties*. The Indian Journal of Agricultural Sciences, Delhi, India, v. 75, n. 1, 2005. Disponível em: https://epubs.icar.org.in/index.php/IJAgS/article/view/9041. Acesso em: 23 oct. 2025.