THE EFFECT RICE HUSK ASH ON AVAIBILITY AND P UPTAKE OF CORN (Zea mays L.) ON ULTISOL. BIOTIK: Jurnal Ilmiah Biologi Teknologi dan Kependidikan, [S. l.], v. 12, n. 1, p. 23–32, 2024. DOI: 10.22373/biotik.v12i1.20091. Disponível em: https://jurnal.ar-raniry.ac.id/index.php/biotik/article/view/20091. Acesso em: 18 aug. 2025.