Researcher(s) |
Christine Zaicou-Kunesch |
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Year(s) | 2015 |
Contributor | Department of Agriculture and Food WA |
Trial location(s) |
Pindar, WA
|
Further information | View external link |
Compare the yield responses of canola varieties sown at three sowing dates (9 April, 23 April and 12 May).
Canola Grain Yield at Pindar
All varieties apart from Stingray were able to yield the same or higher from the 9th April sowing opportunity.
As expected the shorter seasoned varieties were not able to capitalise on the 9th April sowing as the longer season varieties. Grain yield declined with delayed sowing for longer season canola varieties.
Growers may not see a flat yield response for early sowings as an issue. Instead, the early sowing window allows them to get crop out of the ground and reduces the risk of dry spells leading to a lack of future sowing opportunities. However pests (eg Diamondback moth) and diseases (such as Sclerotinia), depending on rainfall zone and soil type, need to be factored into decisions about very early sowing windows.
The success of very early sowing depends heavily on soil type, soil moisture and temperature. Growers need to assess the conditions they face in the lead into each season closely before embarking on very early sowing, especially when using hybrid seed with high seed costs.
Lead research organisation | N/A |
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Host research organisation | N/A |
Trial funding source | DAFWA DAW00253 |
Trial funding source | GRDC DAW00253 |
Related program |
Tactical Break Crop Agronomy |
Acknowledgments |
Financial support for this trial has been provided by the Grains Research and Development Corporation's Regional Cropping Solutions Network in Western Australia. Yield Prophet reporting managed by Richard Quinlan at PlanFarm. DAFWA's research support unit for trial managment and Melaine Kupsch for data management. Appreciation of the Yuna Farm Improvement Group and the Batten family for access to trials site and field day events. |
Other trial partners | Mullewa Dryland Farming Initiative, Plan Farm Pty Ltd |
Crop type | Oilseed: Canola |
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Treatment type(s) |
|
Trial type | Experimental |
Trial design | Replicated |
Sow rate or Target density | 60 and 120 plants/m2 |
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Sowing machinery |
7 row cone seeder |
Sow date | 9 April 2015 9th April, 23rd April and 12th May 2015 |
Harvest date | November 2015 |
Plot size | 1.54m x 10m |
Plot replication | 3 |
Fungicide |
n/a |
Soil amelioration |
nil |
Seed treatment | nil |
Inoculant | nil |
Tillage | Minimum tillage |
@T1: Time of sowing 1 (09-04-2015) | @T2: Time of sowing 2 (23-04-2015) | @T3: Time of sowing 3 (12-05-2015) | |||||
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# | Variety |
Canola yield (t/ha) | Predicted Yield (t/ha) | Predicted Yield (t/ha) | Canola yield (t/ha) | Canola yield (t/ha) | Predicted Yield (t/ha) |
1 | █ ATR-Bonito | 1.32 | 1.8 | 2 | 1.26 | 1.06 | 2 |
1 | █ ATR-Bonito | 1.69 | 2.2 | 2.4 | 1.52 | 1.16 | 2.2 |
1 | █ ATR-Bonito | 1.62 | 2.2 | 2.4 | 1.37 | 0.79 | 2.3 |
2 | █ Pacific Seeds Hyola 450TT | 1.95 | 2.5 | 2.5 | 1.57 | 1.01 | 1.9 |
2 | █ Pacific Seeds Hyola 450TT | 0.74 | 1.8 | 2 | 1.28 | 0.52 | 2 |
2 | █ Pacific Seeds Hyola 450TT | 1.2 | 2.2 | 2.4 | 1.23 | 0.83 | 2.2 |
3 | █ Pacific Seeds Hyola 559TT | ||||||
3 | █ Pacific Seeds Hyola 559TT | ||||||
3 | █ Pacific Seeds Hyola 559TT | ||||||
4 | █ Pacific Seeds Hyola 650TT | ||||||
4 | █ Pacific Seeds Hyola 650TT | ||||||
4 | █ Pacific Seeds Hyola 650TT | ||||||
5 | █ ATR-Stingray | ||||||
5 | █ ATR-Stingray | ||||||
5 | █ ATR-Stingray | ||||||
6 | █ ATR-Wahoo | ||||||
6 | █ ATR-Wahoo | ||||||
6 | █ ATR-Wahoo |
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.