In summary, the experiment demonstrated that genotypic resilience and integrated nutrient management are key determinants of barley performance under climatic stress. Mv Fáta’s physiological stability and the synergistic effects of silicon and micronutrients underscore the importance of scientifically informed, adaptive management practices. The findings provide practical guidance for improving the productivity and sustainability of winter barley cultivation in Hungary and contribute to the broader understanding of crop-climate interactions in temperate cereal systems.