The Australian Nitrous Oxide Research Program - Peter Grace, QUT
•Download as PPT, PDF•
1 like•1,140 views
![Acknowledgements ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
Recommended
Recommended
More Related Content
What's hot
What's hot (20)
Viewers also liked
Viewers also liked (8)
Similar to The Australian Nitrous Oxide Research Program - Peter Grace, QUT
Similar to The Australian Nitrous Oxide Research Program - Peter Grace, QUT (20)
More from Climate Change Research Strategy for Primary Industries
More from Climate Change Research Strategy for Primary Industries (20)
Recently uploaded
Recently uploaded (20)
The Australian Nitrous Oxide Research Program - Peter Grace, QUT
- 1. The Australian Nitrous Oxide Research Program (NORP) Peter Grace n2o.net.au N 2 O Network
- 4. Why N 2 O? NH 4 + NO 3 + N 2 O N 2 N 2 O Nitrification Denitrification Fertiliser etc
- 5. Why N 2 O? NH 4 + NO 3 + N 2 O N 2 N 2 O Nitrification Denitrification Soil water content < Field capacity Saturated
- 6. Why N 2 O? NH 4 + NO 3 + N 2 O N 2 N 2 O Nitrification Denitrification LABILE CARBON Soil water content < Field capacity Saturated
- 7. Why N 2 O? NH 4 + NO 3 + N 2 O N 2 N 2 O Nitrification Denitrification N 2 /N 2 O = 30+ Soil water content < Field capacity Saturated
- 9. NORP Core Field Sites Wongan Hills Terang Hamilton Tamworth` Mackay Kingsthorpe
- 15. NORP Core Field Sites Wongan Hills Terang Hamilton Tamworth` Mackay Kingsthorpe Rainfed grains Rainfed grains Rainfed grains
- 19. NORP Core Field Sites Wongan Hills Terang Hamilton Tamworth` Mackay Kingsthorpe Rainfed grains Rainfed grains Irrigated grains/cotton Rainfed grains/sugar cane Rainfed grains
- 21. NORP Core Field Sites Wongan Hills Terang Hamilton Tamworth` Mackay Kingsthorpe Rainfed grains Rainfed grains Irrigated grains/cotton Rainfed grains/sugar cane Rainfed grains Dairy
- 23. NORP Core Field Sites Wongan Hills Terang Hamilton Tamworth` Mackay Kingsthorpe Rainfed grains Rainfed grains Rainfed grains/sugar cane Rainfed grains
- 25. NORP Core Field Sites + Wongan Hills Terang Hamilton Tamworth` Mackay Kingsthorpe Narrabri Griffith Wollongbar
- 26. Daily N 2 O flux (+/- inhibitor) - dairy Terang (Vic) Kelly et al. unpublished
- 27. Hourly N 2 O flux – wheat Wongan Hills (WA) Barton et al. unpublished
- 39. Labile carbon and N 2 O emissions in cropping systems
- 40. Labile carbon and N 2 O emissions in cropping systems
- 41. Labile carbon and N 2 O emissions in cropping systems
- 42. Nitrogen Use Efficiency (Cereals)* *FAOSTAT
- 43. Regional N 2 O Emission Potential Low Medium High No data/uncertain Grace et al. unpublished
- 46. Irrigation management – wheat Kingsthorpe (Qld) Treatment Irrigated Optimum Dryland Average Flux (g N 2 O-N/ha/day) 5.5 3.2 3.3 Seasonal Flux (kg N 2 O-N/ha) 0.75 0.43 0.45 Emissions factor (%) 0.38 0.22 0.23 Irrigation/rain (mm) 417 315 219 Yield (t/ha) 3.1 1.9 1.6 Emissions intensity (kg N 2 O-N/t yield) 0.25 0.27 0.33
- 47. Irrigation management – wheat Kingsthorpe (Qld) Treatment Irrigated Optimum Dryland Average Flux (g N 2 O-N/ha/day) 5.5 3.2 3.3 Seasonal Flux (kg N 2 O-N/ha) 0.75 0.43 0.45 Emissions factor (%) 0.38 0.22 0.23 Irrigation/rain (mm) 417 315 219 Yield (t/ha) 3.1 1.9 1.6 Emissions intensity (kg N 2 O-N/t yield) 0.25 0.27 0.33
- 48. Irrigation management – wheat Kingsthorpe (Qld) Treatment Irrigated Optimum Dryland Average Flux (g N 2 O-N/ha/day) 5.5 3.2 3.3 Seasonal Flux (kg N 2 O-N/ha) 0.75 0.43 0.45 Emissions factor (%) 0.38 0.22 0.23 Irrigation/rain (mm) 417 315 219 Yield (t/ha) 3.1 1.9 1.6 Emissions intensity (kg N 2 O-N/t yield) 0.25 0.27 0.33
- 50. THANK YOU
Editor's Notes
- This is the first two experiments (same treatments), but conducted on fresh area of pasture
- N use efficiency is important where labile C is available, and in practice NUE has remained static in Australia.