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Plant density response in medium rainfall canola in WA

2013

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

Trial details

Researcher(s) Bob French
Year(s) 2013
Contributor Department of Agriculture and Food WA
Trial location(s) Wongan Hills, WA
Plant density response in medium rainfall canola in WA 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 this 2013 trial:

  • Canola yield responded to increasing plant density to 65 plants/m² but there was very little response at densities greater than 20 to 30 plants/m²
  • The response was variable within this trial site, which means that is very likely to be quite variable across different years and locations. 
  • Roundup Ready canola enabled much better weed control than triazine tolerant canola on this site.
Lead research organisation Department of Agriculture and Food WA
Host research organisation N/A
Trial funding source GRDC DAW00227
Related program N/A
Acknowledgments

This trial is one of a series conducted throughout WA as part of the GRDC/DAFWA co-funded project “Tactical Break Crop Agronomy in Western Australia”.  Thanks to Shari Dougall and Bruce Thorpe of the Wongan Hills RSU for trial management.  Laurie Maiolo (DAFWA, Merredin) provided technical assistance to ensure all treatments and measurements occurred in a timely and accurate fashion.
Other trial partners Not specified
Download the trial report to view additional trial information

Method

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

Wongan Hills 2013

Sow rate or Target density 8 target densities (5, 10 ,15, 20, 30, 40, 60, and 80 plants/m²)
Sow date 13 May 2013 13 May 2013
Harvest date Not specified
Plot size Not specified
Plot replication 3
Fertiliser

Fertiliser (kg/ha): 100 kg/ha of Whitgro Extra at seeding, 120 kg/ha of Muriate of Potash and 400 kg/ha of gypsum (17% Ca, 14% S) topdressed over whole site 4 weeks after seeding.
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
Wongan Hills, WA Loamy sand
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 2013

Observed climate information

Rainfall avg gsr (mm) 249mm

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

2013 trial report



Trial last modified: 28-05-2019 11:59am AEST