The study looked at how different levels of nitrogen and sulfur affect the growth and nutrient uptake of winter wheat seedlings. They found that moderate levels of sulfur can help increase nitrogen and sulfur content in wheat shoots, promote leaf development, and boost photosynthesis. However, too much sulfur can hinder photosynthesis and nutrient absorption. Different wheat varieties respond differently to nitrogen and sulfur levels, with some being more tolerant to high sulfur levels. Overall, the right balance of nitrogen and sulfur is crucial for optimal growth and nutrient utilization in winter wheat seedlings.