PHONGPAN, S.; R. MOSIER, A.; SOOKTHONGSA, J. Effect of Rice Straw and Rice Hull Ash Addition on the Efficiency of Urea Broadcast to a Lowland Rice Field. Thai Agricultural Research Journal, [S. l.], v. 22, n. 1, p. 9–23, 2004. DOI: 10.14456/thaidoa-agres.2004.2. Disponível em: https://li01.tci-thaijo.org/index.php/thaiagriculturalresearch/article/view/212206. Acesso em: 1 oct. 2026.