 This study investigates the potential of a novel slow release fertilizer, SRF, based on polymeric materials to improve the yield and quality of tomatoes. Three types of polymeric materials were synthesized and tested against conventional fertilizers. The results showed that the SRFs had better yields and quality than conventional fertilizers. Furthermore, the SRFs had lower nitrate content in the fruits, indicating reduced environmental pollution. This article was authored by Elahav Motamedi, Marzia Safari, and Mary Salimi.