Can we extend the sowing window of canola in WA #1 Tenindewa


Research organisaton
Funding source

Trial details

Researcher(s) Martin Harries, Imma Farre, Jackie Bucat, Mark Seymour (DPIRD)
Year(s) 2018
Contributor Department of Primary Industries and Regional Development WA
Trial location(s) Site 4, Tenindewa, WA
Can we extend the sowing window of canola in WA #1 Tenindewa locations

To investigate yield and phenology of canola varieties when sown in March to provide better advice to agronomists and growers about the best varieties to use and safe sowing and flowering windows.

Key messages
  • Overall yield from May 17 sowing was impressive for this AgZone, at 1.6 t/ha.
  • Delayed sowing by 34 days, to June 20, led to 1042 kg/ha less yield – 30 kg/ha/day.
  • Short season hybrids could extend the safe sowing window later in this environment.
  • Difficulty establishing canola in hot conditions could limit how far the sowing window can be brought forward.
  • To take advantage of early autumn rains in this environment larger seeded broadleaf species that can be sown deeper should be tested.
Lead research organisation Department of Primary Industries and Regional Development WA
Host research organisation N/A
Trial funding source GRDC DAW00227
Related program N/A

Thanks to the Geraldton DPIRD Research Support Unit and Stephanie Boyce for trial management and measurements, Tim and Daniel Critch for supplying the site and the GRDC for project funding.

Other trial partners Not specified
Download the trial report to view additional trial information


Crop type Canola
Treatment type(s)
  • Sowing: Timing
  • Variety: Type
Trial type Experimental
Trial design Randomised,Replicated

Tenindewa 2018

Sow rate or Target density 40 plants/m2
Sowing machinery

Cone Seeder.

Sow date 15 March 2018 Five time of sowing started from 15 March
Harvest date 24 October 2018
Plot size Not specified
Plot replication 4
Plot randomisation yes
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
Not specified
Soil conditions
Trial site Soil texture
Site 4, Tenindewa, WA Not specified
Derived trial site soil information
Australian Soil Classification Source
Trial site Soil order
Site 4, Tenindewa, WA Anthroposol
National soil grid Source
NOTE: National Soil Grid data is aggregated information for background information on the wider area
Actual soil values can vary significantly in a small area and the trial soil tests are the most relevant data where available

Soil properties



Site 4, Tenindewa WA 2018

Observed climate information

Rainfall avg ann (mm) 247mm

Derived climate information

Site 4, Tenindewa WA


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

SILO weather estimates sourced from
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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Trial last modified: 13-08-2019 13:46pm AEST