The study looked at how different levels of nitrogen and sulfur affect the yield of rapeseed in paddy soil. They found that increasing nitrogen application led to higher rapeseed yields, especially when sulfur was also applied. Adding sulfur to the soil increased rapeseed yield even more. The combination of nitrogen and sulfur also improved the efficiency of nitrogen fertilizer use. Overall, applying both nitrogen and sulfur can help increase rapeseed yield and make better use of fertilizer.