Wheat grain quality directly affects flour performance and final product value. Nitrogen (N) fertilisation strategies—timing, method, and formulation—play a key role in shaping both yield and quality. Applying a previously estimated total dose in split doses at tillering and stem elongation stages, especially as soil-applied urea, improved grain protein, gluten content, and flour strength (alveograph W). Foliar N with micronutrients had less impact on quality. In contrast, N applied with compound fertilisers containing macro- and micronutrients tended to reduce grain protein and Zeleny index. While mineral N increased grain yield, differences in dry matter, kernel size, and hardness were more influenced by application method than total N dose. For farmers aiming to improve both yield and baking quality, targeted soil N applications at key growth stages offer the best balance between productivity and grain quality.