| Researcher(s) |
Chris O'Callaghan (Liebe Group) |
|---|---|
| Year(s) | 2007 |
| Contributor | Liebe Group |
| Trial location(s) |
West Buntine, WA
|
To look at the potential of black urea in terms of lifting yields through better nitrogen efficiency.
Table 1 shows there was no benefit in applying black urea at 75kg/ha or white urea at 75 or 100kg/ha over the control.
| Lead research organisation |
Liebe Group |
|---|---|
| Host research organisation | N/A |
| Related program | N/A |
| Acknowledgments |
|
| Other trial partners | Not specified |
| Crop type | Cereal (Grain): Barley |
|---|---|
| Treatment type(s) |
|
| Trial type | Experimental |
| Trial design | Replicated |
| Sow date | 20 June 2007 |
|---|---|
| Harvest date | Not specified |
| Plot size | 150m x 18m |
| Plot replication | 3 |
| Fertiliser |
20/6/07: 80 kg/ha AgFlow (75%) + AgNP (25%) |
| Herbicide |
20/6/07: 1.2 L/ha Trifluralin, 20/9/07: 800 mL/ha MCPA LVE |
| # |
Treatment 1
|
Gross margin ($/ha) | Grain yield (t/ha) |
|---|---|---|---|
| 1 | █ Black Urea 100 kg/ha | 179.83 | 1.27 |
| 2 | █ Black Urea 75 kg/ha | 161.03 | 1.15 |
| 3 | █ Control (No Urea) | 234.53 | 1.21 |
| 4 | █ White Urea 100 kg/ha | 161.03 | 1.15 |
| 5 | █ White Urea 75 kg/ha | 190.08 | 1.2 |
| Rainfall trial gsr (mm) | 130mm |
|---|
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.
