Effects of dynamic nitrogen application on rice yield and quality under straw returning conditions.

Rice cultivation in Jilin Province, China, encounters challenges associated with straw management and nitrogen fertilizer usage. This study explores the effects of dynamic nitrogen fertilizer application combined with straw incorporation on soil properties, rice yield, and quality. High-quality Japonica rice varieties, "Jihong 9″ and "Jinongda 853," were cultivated in a 3-year trial across different regions.