Effect of Organic and Chemical Fertilizers Treatments on Growth and Productivity of Maize and Sorghum and Sunflower. Damascus University Journal of agriculture sciences, [S. l.], v. 36, n. 2, 2021. Disponível em: https://journal.damascusuniversity.edu.sy/index.php/agrj/article/view/172. Acesso em: 8 jul. 2026.