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Canola density response in medium rainfall environments – Wongan Hills

2014
CC BY 4.0

Research organisations
Funding source
Liebe Group Department of Agriculture and Food WA
<abbr title='Grains Research and Development Corporation'>GRDC</abbr>

Trial details

Researcher(s) Bob French (DAFWA)
Year(s) 2014
Contributor Liebe Group
Trial location(s) Wongan Hills, WA
Canola density response in medium rainfall environments – Wongan Hills locations
Aims

To compare the plant density response of yield and oil content between hybrid and OP canola in TT and RR herbicide tolerance groups.

Key messages
  • In a low yielding season canola yield reached a plateau at between 20 and 40 plants/m².
  • Hybrid canola reached the plateau at lower density than open-pollinated canola.
  • Optimum density ranged from 10 plants/m² for hybrid canola to over 65 plants/m² for open-pollinated (OP) Triazine tolerant (TT) canola.
  • Hybrid canola had a significant yield advantage over open-pollinated canola in a below average season.
Lead research organisation Department of Agriculture and Food WA
Host research organisation N/A
Trial funding source GRDC
Related program N/A
Acknowledgments

Shari Dougall and Bruce Thorpe, DAFWA Wongan Hills.

Sally Sprigg and Laurie Maiolo, DAFWA Merredin, Mark Seymour, DAFWA Esperance, and GRDC for funding.
Other trial partners Not specified
Download the trial report to view additional trial information

Method

Crop type Oilseed: Canola
Treatment type(s)
  • Sowing : Rate
Trial type Experimental
Trial design Replicated

Wongan Hills 2014

Sow rate or Target density various as per protocol
Sow date 13 May 2014
Harvest date Not specified
Plot size 20m x 1.54m
Plot replication 3
Fertiliser

13/05/2015: 100 kg/ha Agstar banded at seeding

02/07/2014: 60 L/ha Flexi-N
Herbicide

10/05/2014: 1.5 L/ha Roundup

13/05/2014: 1.5 L/ha Trifluralin, 2 L/ha Spray.Seed 250

27/05/2014: 900 gm/ha Roundup Ready on RR treatments

10/06/2014: 2.2 kg/ha Atrazine on TT treatments, 1% Spray Oil

 
Insecticide

13/05/2014: 100 mL/ha Bifenthrin

05/06/2014: 0.85 mL/ha Dimethoate

10/08/2014: 300 mL/ha Alpha-cypermethrin
Other trial notes

Paper reviewed by: Sally Sprigg, DAFWA

Contact

Bob French, DAFWA

bob.french@agric.wa.gov.au

(08) 9081 3126

 

 
Download the trial report to view additional method/treatment information
Trial source data and summary not available
Check the trial report PDF for trial results.
Observed trial site soil information
Trial site soil testing
Site Depth Type pH EC P K N A OC CAT
Wongan Hills, WA 0 - 10cm Brown Sandy Earth (With Gravel) 6.40 0.09
Wongan Hills, WA 10 - 20cm Brown Sandy Earth (With Gravel) 5.30 0.07
Wongan Hills, WA 20 - 30cm Brown Sandy Earth (With Gravel) 5.30 0.06
Wongan Hills, WA 30 - 40cm Brown Sandy Earth (With Gravel) 6.00 0.06
Wongan Hills, WA 40 - 50cm Brown Sandy Earth (With Gravel) 6.80 0.10
Soil conditions
Trial site Soil texture
Wongan Hills, WA Not specified
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Wongan Hills, WA Kandosol
Soil Moisture Source: BOM/ANU
Average amount of water stored in the soil profile during the year, estimated by the OzWALD model-data fusion system.
Year Wongan Hills WA
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Climate

Wongan Hills WA 2014

Observed climate information

Rainfall trial gsr (mm) 276mm

Derived climate information

Wongan Hills WA

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Some data on this site is sourced from the Bureau of Meteorology

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.

Trial report and links

2014 trial report



Trial last modified: 23-07-2019 11:10am AEST