| Researcher(s) |
Brian Dzoma (SARDI) Roy Latta (SARDI) |
|---|---|
| Year(s) | 2014 |
| Contributor | Eyre Peninsula Agricultural Research Foundation |
| Trial location(s) |
Minnipa Agricultural Centre, SA
Wanilla, SA |
To measure and quantify N2O emissions from wheat grown in rotation with canola, pulses and legume pastures at two sites in low and medium/high rainfall farming systems of the Eyre Peninsula, while assessing best management practices that local farmers can adopt to reduce the risk of N2O losses and ultimately improve the paddock’s crop productivity and gross margin.
• Work conducted in low and medium rainfall environments indicate that N2O emissions are low from an overall national perspective. • Results showed that there was no clear response of N2O emissions to nitrogen applied at sowing and post sowing. • High pre-seeding soil mineral nitrogen raises the possibility of higher N2O losses over the fallow period following significant rainfall.
| Lead research organisation |
Eyre Peninsula Agricultural Research Foundation |
|---|---|
| Host research organisation |
SARDI Minnipa Agricultural Centre |
| Trial funding source | DAWR AOTGR1- 035,AOTGR1-222 |
| Related program |
Carbon Farming Initiative |
| Acknowledgments |
Minnipa Agricultural Centre and David Giddings for the use of their land. Terry Blacker and Ian Richter for their technical support. This project is supported by funding from the Australian Government Department of Agriculture, - Action on the Ground program. A component of a BCG lead project. |
| Other trial partners | Birchip Cropping Group (BCG); Ag Excellence Alliance; Eyre Peninsula Natural Resources Management (EPNRM) |
| Crop type | Cereal (Grain): Wheat |
|---|---|
| Treatment type(s) |
|
| Trial type | Experimental |
| Trial design | Replicated |
| Sow date | 12 May 2014 |
|---|---|
| Harvest date | 5 November 2014 |
| Plot size | 10m x 3m |
| Plot replication | 3 |
| Fertiliser |
18:20:00:0 @ 50kg/ha |
| Sow date | Not specified |
|---|---|
| Harvest date | Not specified |
| Plot size | Not specified |
| Plot replication | Not specified |
| Fertiliser | Not specified |
| # | Variety |
Treatment 1
|
Protein (%) | Screenings (%) | Grain yield (t/ha) | Gross income ($/ha) | Cost ($/ha) | Grain N yield (kgN/ha) |
|---|---|---|---|---|---|---|---|---|
| 1 | █ Wheat:Mace | █ Medic 2013 | 9.7 | 1.6 | 2.9 | 717 | 239 | 49.4 |
| 2 | █ Wheat:Mace | █ Canola low input 2013 | 9.6 | 0.7 | 2.6 | 648 | 234 | 44.5 |
| 3 | █ Wheat:Mace | █ Field pea 2013 | 9.7 | 0.9 | 2.7 | 655 | 234 | 44.9 |
| 4 | █ Wheat:Mace | █ Canola high input 2013 | 10.3 | 1.1 | 2.8 | 682 | 266 | 50.3 |
| # | Variety |
Treatment 1
|
Protein (%) | Screenings (%) | Grain yield (t/ha) | Gross income ($/ha) | Cost ($/ha) | Grain N yield (kgN/ha) |
|---|---|---|---|---|---|---|---|---|
| 1 | █ Wheat:Mace | █ Medic 2013 | 9.7 | 1.6 | 2.9 | 717 | 239 | 49.4 |
| 2 | █ Wheat:Mace | █ Canola low input 2013 | 9.6 | 0.7 | 2.6 | 648 | 234 | 44.5 |
| 3 | █ Wheat:Mace | █ Field pea 2013 | 9.7 | 0.9 | 2.7 | 655 | 234 | 44.9 |
| 4 | █ Wheat:Mace | █ Canola high input 2013 | 10.3 | 1.1 | 2.8 | 682 | 266 | 50.3 |
SILO weather estimates sourced from https://www.longpaddock.qld.gov.au/silo/
Jeffrey, S.J., Carter, J.O., Moodie, K.B. and Beswick, A.R. (2001). Using spatial interpolation to
construct a comprehensive archive of Australian climate data , Environmental Modelling and Software, Vol
16/4, pp 309-330. DOI: 10.1016/S1364-8152(01)00008-1.
