Establishing long-term nitrogen response of global cereals to assess sustainable fertilizer rates.

The key findings from this scientific paper published in the high-impact Nature Food journal highlight the importance of using LT nitrogen response curves for sustainable nitrogen management in global cereal production. It covers several relevant topic areas, including long-term (LT) nitrogen (N) response curves, sustainable N inputs: economic and environmental implications, agronomic efficiency; optimal N rates: the concept of a 'safe operating space' for nitrogen application where yields are high, pollution is low, and economic benefits for both farming and society are balanced; the global applicability of LT response curves.