| Researcher(s) |
Nick Poole Darcy Warren |
|---|---|
| Year(s) | 2021 |
| Contributor | Field Applied Research (FAR) Australia |
| Trial location(s) |
Hagley, TAS
|
To assess the performance of new spring barley germplasm managed under different canopy structures which includes plant density, fungicide and Nitrogen rate. This includes a spring sown wheat for comparison.
The best managed treatments in Laureate, RGT Planet, Rosalind and the Wheat Zanzibar yielded 10.7, 10.7, 10.5, and 8.2t/ha respectively, highlighting spring sown barley out yieldsspring sown wheat by up to 2t/ha (table 1)
Increasing fungicide inputs had little impact on grain yield in the cultivars Rosalind, Laureate and the wheat Zanzibar – this highlights the robustness of spring sowing for disease management and the fact high yields can be achieved with cheaper (without the SDHIs) and less fungicide inputs than Autumn sowing.
Laureate: Canopy management was important in Laureate, lower nitrogen rates had a bigger influence on grain yield in Laureate than higher seeding and N rates due to increased lodging (figure 1)
o High seeding density (360 seeds/m2), and high N rate (140kg N) yielded 8.2t/ha,
o Lower density (150 seeds/m2) and low N rate (70 kg N/ha) yielded 10.3 t/ha.
Planet: Highest yields were achieved at higher plant densities and high fungicide inputs irrespective of N strategy, highlighting Planet is less disease resistant but more tolerant to lodging than Laureate.
Rosalind: Higher yields were achieved at higher plant densities irrespective of N and fungicide strategy, this highlights the importance of higher seeding densities in shorter faster developing cultivars under spring sown conditions.
Test weights, screenings, and retention were all with malt specifications despite the heat during grain fill. Grain proteins ranged from 10.6 – 11.5 at low N in the malt cultivars Laureate and Planet, whereas at high N they ranged from 11.3 – 12.4 and were above malt specification in Laureate (Table 3)
Rotation position: 1st cereal after Poppies
| Lead research organisation |
Field Applied Research (FAR) Australia |
|---|---|
| Host research organisation | N/A |
| Trial funding source | GRDC FAR2004-002SAX |
| Related program |
FAR Hyper Yielding Crops 2020-2022 |
| Acknowledgments | N/A |
| Other trial partners | Not specified |
| Crop type | Cereal (Grain): Barley |
|---|---|
| Treatment type(s) |
|
| Trial type | Experimental |
| Trial design | Randomised,Replicated,Blocked |
| Sow rate or Target density | Multiple - please see report |
|---|---|
| Sow date | 8 September 2021 |
| Harvest date | 20/1/2022 (1st Harvest Date) to 4/02/2022 (2nd Harvest Date) |
| Plot size | Not specified |
| Plot replication | Not specified |
| Fertiliser |
Multiple-please see report |
| Fungicide |
Multiple-please see report |
| Seed treatment | Pontiac |
| Other trial notes |
Spring sown barley summary: The key feature of the Tasmania HYC Barley site is the fact it is spring sown and supplemented with irrigation. This presents different challenges to growing barley such as a greater chance of heat risk during grain fill, and brackling from rapid growth during stem extension. Cultivars that are less responsive to longer days (photoperiod) are also required to ensure they do not develop too early and build insufficient biomass. |
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.
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