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As the global population continues to grow, the development of N2O mitigation strategies remains a research priority. The biological and chemical processes that drive N₂O emissions from agricultural systems are well-established, but these processes are influenced by numerous spatially and temporally variable factors. As a result, the effectiveness of N2O mitigation strategies varies across different soil, climate, land-use and land-management conditions. This chapter provides a comprehensive summary of strategies for reducing agricultural N₂O emissions. It evaluates the efficacy of current mitigation options across key agricultural systems—including cropping, rice, agroforestry and livestock systems—and discusses the future research focus for new mitigation strategies.
- 1 Introduction
- 2 Mitigation options: an overview
- 4 Managing nitrogen inputs and sources: using organic amendments, legumes and clover
- 5 Managing nitrogen inputs and sources: tillage, cover crops and crop residue management
- 6 Managing nitrogen inputs and sources: feed management and grazing
- 7 Managing nitrogen inputs and sources: manure management
- 8 Reducing the nitrous oxide emission factor: nitrification inhibitors and controlled-release fertilisers
- 9 Reducing the nitrous oxide emission factor: soil management
- 10 Mitigation options for different agricultural systems
- 11 Emerging technologies for N2O mitigation
- 12 Conclusion
- 13 Where to look for further information
- 14 References