Quantifying the long-term (LT) response of crop yields to nitrogen fertilizer is critical to improving nutrient management practices. Based on 25 LT field experiments, this study develops a generic LT nitrogen response function for global cereals to characterize the yield impacts, associated LT economic benefits and external costs of changing nitrogen inputs.
- Hans J. M. van Grinsven
- Peter Ebanyat
- Hein F. M. ten Berge
