RIVAIE, A. A. Influence of SP-36 and Phosphate Rock on Changes in Soil Available P, Leaf P Content, and Growth of Physic Nut (Jatropha curcas L.) in an Ultisol. JOURNAL OF TROPICAL SOILS, [S. l.], v. 19, n. 1, p. 9–15, 2015. DOI: 10.5400/jts.2014.v19i1.9-15. Disponível em: https://journal.unila.ac.id/index.php/tropicalsoil/article/view/195. Acesso em: 31 jul. 2025.