KASNO, A; RACHIM, Abdul; ISKANDAR, Iskandar; ADININGSIH, J. Sri. Relationship between K/Ca Ratios in the Soil Solution with the Dynamic of K in Ultisol and Vertisol of Upland Area. Jurnal Ilmu Tanah dan Lingkungan, [S. l.], v. 6, n. 1, p. 7–13, 2004. DOI: 10.29244/jitl.6.1.7-13. Disponível em: https://journal.ipb.ac.id/jtanah/article/view/2336. Acesso em: 13 jan. 2026.