Although N is an important agronomic input for productive bermudagrass pastures, increasing costs and environmental problems associated with improper fertilization have prompted the need to re-examine optimum rates and efficient sources to supply pastures with N. Ammonium nitrate has been the primary N source for grass pastures on the Coastal Plain of the southern US; however, the importance of urea has increased. The objectives of this study were to examine the effectiveness of various N sources, combinations, and rates relative to Coastal bermudagrass [Cynodon dactylon (L.) Pers] dry matter yields (DMY) and N uptake efficiency on Gallime (Glossic Paleudalf) and Lilbert (Plinthic Paleudult) soils. Urea-ammonium nitrate (UAN), urea, urea + Ca, ammonium nitrate (AN), ammonium sulfate (AS) and combinations of UAN with B and S were evaluated. Nitrogen sources were applied to supply 0, 45, 90, and 130 kg N ha-1 for each harvest. Bermudagrass plots were timely harvested during three years, and plant tissue was analyzed for total N and S. Soil samples (0- to 90-cm) were collected at the end of the third year. Dry matter yields varied across years due to inconsistent rainfall distribution during the three-year study. Nitrogen sources and combinations showed significant effects on bermudagrass production at only one of the experimental sites. For this site, average DMY follow the order: AN ≥ AS = UAN + AS. However, the latter two N sources were not significantly different from the other sources. The interaction between N sources and rates on DMY was not significant (P ≤ 0.05). Yields, N, and S concentrations were significantly increased with higher N rates, while N uptake efficiency significantly declined. Nitrogen promoted soil acidity, with AS showing the lowest pH at any N application rate.