LUMBANRAJA, P. .; HARAHAP, E. M. . ENHANCING SOIL WATER HOLDING CAPACITY AND CATION EXCHANGE CAPACITY OF SANDY SOIL WITH APPLICATION OF MANURE ON SIMALINGKAR SOIL. Jurnal Online Pertanian Tropik, [S. l.], v. 2, n. 1, p. 74–88, 2015. DOI: 10.32734/jopt.v2i1.2881. Disponível em: https://talenta.usu.ac.id/jpt/article/view/2881. Acesso em: 23 aug. 2025.