WIDOWATI, L. R. The Rule of Organic Fertilizer on Fertilizer Efficiency and Requirement Rate for Vegetable Crop on Inceptisols Ciherang, Bogor. JOURNAL OF TROPICAL SOILS, [S. l.], v. 14, n. 3, p. 221–228, 2009. DOI: 10.5400/jts.2009.v14i3.221-228. Disponível em: https://journal.unila.ac.id/index.php/tropicalsoil/article/view/89. Acesso em: 31 jul. 2025.