Researcher(s) |
Raj Malik Blakely Paynter Georgie Troup |
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Year(s) | 2015 |
Contributor | Department of Agriculture and Food WA |
Trial location(s) |
Cunderdin, WA
Holt Rock, WA Merredin, WA |
Growers in medium to low rainfall regions are keen to grow oats as a break crop, either for hay or as a profitable grain crop; however, there is a need to identify management inputs and varieties that consistently meet quality specifications. Currently there is considerable interest in the high yielding milling oat varieties Bannister and Williams but they have not been adequately evaluated in lower rainfall environments in WA. Oat agronomy trials conducted in 2014 suggested that the grain quality of Banister and Williams was more sensitive to nitrogen inputs than established varieties like Carrolup in lower rainfall regions (Troup et al. 2015) but these trials were only sown in late May at the end of the ‘modern oat grower’ sowing window for milling oats.
The aims of this study are to:
Lead research organisation |
Department of Agriculture and Food WA |
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Host research organisation | N/A |
Trial funding source | DAFWA DAW00227 |
Trial funding source | GRDC DAW00227 |
Related program |
Oat agronomy and industry development in the Western Region |
Acknowledgments |
I would like to acknowledge the research support of Mark Seymour, and technical support of Helena O’Dwyer, Sue Cartledge and the DAFWA Research Support Units at Northam, Merredin and Katanning. |
Other trial partners | Not specified |
Crop type | Forage: Oats |
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Treatment type(s) |
|
Trial type | Experimental |
Trial design | Randomised,Replicated,Blocked |
Sow rate or Target density | Not specified |
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Sowing machinery | Not specified |
Sow date | Not specified |
Harvest date | Not specified |
Plot size | Not specified |
Plot replication | Not specified |
Fertiliser | Not specified |
Seed treatment | Not specified |
Other trial notes |
Screenings limited the ability of the grain to meet Oat1 specifications more than hectolitre weight at our trials in 2015. |
Sow rate or Target density | 160 plants/m2 |
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Sowing machinery |
This study was undertaken in 2015 at three medium to low rainfall sites (Cunderdin, Holt Rock and Merredin) to compare the performance of six milling oat varieties/lines (Bannister, Carrolup, WA02Q302-9, Williams and Yallara, and 05096-32) when sown on two seeding dates (May and June, 4 weeks apart) and fertilised at four different nitrogen rates (0, 20, 40, and 80 kg N/ha). Oat seed was direct-drilled (2 to 3 cm depth) into canola stubble using a small plot air-seeder with trailing on-row press wheels; CSBP Super CZM was banded below the seed at 120 kg/ha. Urea was top dresses across select plots, 6 to 7 weeks after sowing (WAS), at 20 or 60 kg N/ha to fully implement N treatments. Soil samples were taken just before seeding and analysed for soil physical and chemical properties. Based on soil parameters, rotation and expected rates of mineralisation, we used the Select Your Nitrogen (SYN) tool to calculate total available nitrogen at each site. |
Sow date | 8 May 2015 |
Harvest date | 3 November 2015 |
Plot size | 10m x 1.85m |
Plot replication | 3 |
Fertiliser |
CSBP Super CZM was banded below the seed at 120 kg/ha. Urea was top dresses across select plots, 6 to 7 weeks after sowing (WAS), at 20 or 60 kg N/ha to fully implement N treatments. |
Seed treatment | Seed was treated with Emerge and Vibrance at label rate. |
Other trial notes |
Screenings limited the ability of the grain to meet Oat1 specifications more than hectolitre weight at our trials in 2015. |
Sow rate or Target density | Not specified |
---|---|
Sowing machinery | Not specified |
Sow date | Not specified |
Harvest date | Not specified |
Plot size | Not specified |
Plot replication | Not specified |
Fertiliser | Not specified |
Seed treatment | Not specified |
Other trial notes |
Screenings limited the ability of the grain to meet Oat1 specifications more than hectolitre weight at our trials in 2015. |
Rainfall trial gsr (mm) | 140mm |
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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.