| Researcher(s) |
Damian Jones |
|---|---|
| Year(s) | 2018 |
| Contributor | Irrigated Cropping Council |
| Trial location(s) |
Kerang, VIC
|
| Related trials |
To economically grow irrigated wheat to meeet DR1 specifications
Nitrogen management is the key. Understanding the mineralisation contribution to the N budget, N required per tonne of grain and accurate yield estimates has been the key to successfully growing irrigated DR1 durum wheat.
Later sowing did not affect yield and improved grain protein.
The key influences on profitability are commodity prices, cost of water and proximity to market.
| Lead research organisation |
Irrigated Cropping Council |
|---|---|
| Host research organisation |
Irrigated Cropping Council |
| Trial funding source | GRDC ICF00012 |
| Related program | N/A |
| Acknowledgments |
Lee Menhennet, Incitec Pivot Rob Christie, Seednet Gururaj Kadkol, NSW DPI |
| Other trial partners | Not specified |
| Crop type | Cereal (Grain): Wheat |
|---|---|
| Treatment type(s) |
|
| Trial type | Experimental |
| Trial design | Blocked |
| Sow rate or Target density | 160 pl/m2 |
|---|---|
| Sowing machinery |
Shearer tyned seeder, Baker boots, 7 inch row spacing |
| Sow date | 8 May 2018 ToS1 Early May and ToS2 late May (29/5/2018) |
| Harvest date | 11 December 2018 mid December |
| Plot size | 15m x 1.5m |
| Plot replication | 3 |
| Plot blocking | No |
| Plot randomisation | Randomised via Digger trial design software |
| Fertiliser |
125 kg DAP/ha at sowing Limitations of this format do not allow the data to be presented in a summary table. See attached trial report for a complete summary of N timing and rates. N treatments depended on the treatment type 250 kg N/ha topdressed and/or foliar application at various stages in the crop cycle for most treatments 2 treatments had 330 kg N/ha topdressed and/or foliar application
|
| Herbicide |
1.5 l/ha glyphosate (540g/l) 7/5/2018 0.075 ml/ha oxyfluorfen 7/5/2018 2.5 l/ha Boxer Gold 7/5/2018 (ToS1) 2.5 l/ha Boxer Gold 29/5/2018 (ToS2) 50 ml/ha clopyralid (600g/l) 25/7/2018 |
| Seed treatment | Gaucho 200ml/100 kg seed |
| # |
Treatment 1
|
Treatment 2
|
Protein (%) | Grain yield (t/ha) |
|---|---|---|---|---|
| 1 | █ ToS1 | █ Control 240 kg N/ha applied as 80+80+90+0 | 12.8 | 9.98 |
| 2 | █ ToS1 | █ Late N (1) 80+80+0+90 | 13 | 10.21 |
| 3 | █ ToS1 | █ Late N (2) 60+65+130 | 13.1 | 10.11 |
| 4 | █ ToS1 | █ Post Flowering 40kg N/ha streaming | 13.3 | 10.15 |
| 5 | █ ToS1 | █ Post Flowering Flat Fan (1) 40 kg N/ha 40+40+130+40 | 13.7 | 10.31 |
| 6 | █ ToS1 | █ Post Flowering Flat Fan (2) 40 kg N/ha 80+80+50+40 | 13.2 | 9.68 |
| 7 | █ ToS1 | █ High N 80+100+150 | 13.6 | 10.13 |
| 8 | █ ToS1 | █ High N + Post Fl 80+80+150+20 | 13.8 | 10.14 |
| 9 | █ ToS2 | █ Control 240 kg N/ha applied as 80+80+90+0 | 13.1 | 11.13 |
| 10 | █ ToS2 | █ Late N (1) 80+80+0+90 | 13.3 | 11.08 |
| 11 | █ ToS2 | █ Late N (2) 60+65+130 | 13.4 | 11.15 |
| 12 | █ ToS2 | █ Post Flowering 40kg N/ha streaming | 14.1 | 11.5 |
| 13 | █ ToS2 | █ Post Flowering Flat Fan (1) 40 kg N/ha 40+40+130+40 | 14.6 | 10.95 |
| 14 | █ ToS2 | █ Post Flowering Flat Fan (2) 40 kg N/ha 80+80+50+40 | 14.1 | 11.43 |
| 15 | █ ToS2 | █ High N 80+100+150 | 13.9 | 11.3 |
| 16 | █ ToS2 | █ High N + Post Fl 80+80+150+20 | 14 | 10.88 |
| Rainfall avg ann (mm) | 375mm |
|---|---|
| Rainfall avg gsr (mm) | 232mm |
| Rainfall trial total (mm) | 230mm |
| Rainfall trial gsr (mm) | 122mm |
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.
