A field experiment was conducted in Shandong Province to study the impact of various irrigation and nitrogen application methods on nitrogen gas emissions in winter wheat fields.
Results indicated that ammonia volatilization and nitrous oxide emissions peaked 2-4 days post-fertilization or irrigation, with lower emissions observed in reduced nitrogen treatments.
The study concluded that moderate reductions in irrigation and nitrogen inputs can significantly lower nitrogen gas emissions while still achieving optimal wheat yields and improved water utilization efficiency.