MAHDI , Hayder Abdulkadhim; JEBUR, Hussein Abbas. Evaluation of the Efficiency and the Performance of a Variable-Rate Chemical Fertilizer Spreader Using a GPS-Based Control System. Diyala Agricultural Sciences Journal , [S. l.], v. 17, n. 2, p. 166–184, 2025. DOI: 10.52951/dasj.25170212. Disponível em: https://journal.djas.uodiyala.edu.iq/index.php/dasj/article/view/11403. Acesso em: 17 apr. 2026.