SISWANTO; MINDARI, W. .; SANTOSO, S. B. .; RAHAYU, R. D. . Effectiveness of Ameliorant Humic Acid and Silica Based on Availability of Sandy Soil Nitrogen for Rice. Nusantara Science and Technology Proceedings, Malang, Indonesia, v. 2022, n. 24, p. 340-343, 2022. DOI: 10.11594/nstp.2022.2467. Disponível em: https://nstproceeding.com/index.php/nuscientech/article/view/710. Acesso em: 10 mar. 2025.