| Researcher(s) |
Mariano Cossani Victor Sadras |
|---|---|
| Year(s) | 2017 - 2018 |
| Contributor | Hart Field Site Group |
| Trial location(s) |
, SA
, SA , SA Hart, SA |
| Further information | View external link |
To develop guidelines to manage the 3-way interaction between N, variety and sowing date.
• Nitrogen fertiliser decisions need to take into account variety and sowing date.
• Yield losses may reach up to 0.67 t/ha per °C during the critical period (20 days before to 10 days after flowering) for yield determination.
| Lead research organisation | N/A |
|---|---|
| Host research organisation | N/A |
| Trial funding source | GRDC DAS00166 |
| Related program | N/A |
| Acknowledgments |
Funding for the establishment, maintenance, and analysis of field trials has been provided by the GRDC-SARDI (DAS00166). We especially thank the Hart Field-Site Group and John Faulkner and his family for their support to our field research, Longreach Seeds and AGT for the provision of seeds for carry out the experiment. We also thanks to students (Bethany Sleep, Alvaro Sanchez Virosta and Anabel O’Dea) and casuals (Jose, Han, Martin, Gaston, Tanja, Habtamu) for their work in laboratory and field activities. |
| Other trial partners | Not specified |
| Crop type | Cereal (Grain): Wheat |
|---|---|
| Treatment type(s) |
|
| Trial type | Experimental |
| Trial design | Unknown |
| Sow date | 13/5/17 and 14/5/18; 26/5/17 and 27/5/18; 9/6/17 and 24/6/18; 23/6/17 and 10/7/18 |
|---|---|
| Harvest date | Unknown |
| Plot size | 1.75m x 6m and 2m x 15m |
| Plot replication | Not specified |
| Fertiliser |
Three fertiliser rates (50, 100 and 200 kg N/ha) applied as urea. Nitrogen application was split in 50% at early tillering and 50% just before stem elongation. |
| Sow date | 13/5/17 and 14/5/18; 26/5/17 and 27/5/18; 9/6/17 and 24/6/18; 23/6/17 and 10/7/18 |
|---|---|
| Harvest date | Unknown |
| Plot size | 1.75m x 6m and 2m x 15m |
| Plot replication | Not specified |
| Fertiliser |
Three fertiliser rates (50, 100 and 200 kg N/ha) applied as urea. Nitrogen application was split in 50% at early tillering and 50% just before stem elongation. |
| Sow date | 13/5/17 and 14/5/18; 26/5/17 and 27/5/18; 9/6/17 and 24/6/18; 23/6/17 and 10/7/18 |
|---|---|
| Harvest date | Unknown |
| Plot size | 1.75m x 6m and 2m x 15m |
| Plot replication | Not specified |
| Fertiliser |
Three fertiliser rates (50, 100 and 200 kg N/ha) applied as urea. Nitrogen application was split in 50% at early tillering and 50% just before stem elongation. |
| Sow date | 13/5/17 and 14/5/18; 26/5/17 and 27/5/18; 9/6/17 and 24/6/18; 23/6/17 and 10/7/18 |
|---|---|
| Harvest date | Unknown |
| Plot size | 1.75m x 6m and 2m x 15m |
| Plot replication | Not specified |
| Fertiliser |
Three fertiliser rates (50, 100 and 200 kg N/ha) applied as urea. Nitrogen application was split in 50% at early tillering and 50% just before stem elongation. |
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.
