N canola seeding rate

CC BY 4.0

Research organisatons

Trial details

Researcher(s) James Easton (CSBP)
Jonathon Wyber (CSBP)
Year(s) 2013
Contributor West Midlands Group
Trial location(s) Regans Ford, WA
N canola seeding rate locations

To determine the effect of canola plant density on nitrogen (N) response.

Key messages
  • 2 kg/ha seeding rate produced a plant density of 37 plants/m2; 4 kg/ha seeding rate 68 plants/m2
  • Canola plant density had no effect on Nitrogen response
  • 2 applications of 80Kg/Ha NS41 increased yield from 1.34 to 1.70 t/ha
  • Plant test results showed low Boron (B) levels (about 14mg/kg) at the 6 leaf stage but there was no response to Bortrac 150 applied at early flowering.
  • Large number of ryegrass plants, particularly in 2kg seeding rate plots.
Lead research organisation CSBP
Host research organisation West Midlands Group
Related program N/A

Ryan Guthrie and Rowan Maddern (CSBP Field Research).

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


Crop type Canola
Treatment type(s)
  • Fertiliser
Trial type Experimental
Trial design Replicated

Regans Ford 2013

Sow rate or Target density 2 and 4 kg/ha
Sowing machinery

CSBP Primary Sales cone seeder.

Sow date 6 May 2013
Harvest date 5 November 2013
Plot size 2.5m x 20m
Plot replication 3

Seeding: 100 kg/ha Agstar, June 20: NS41, July 10: NS41, 29 July: 1.3 L/ha Bortrac 150 (full flower).


6 May: 2.2 kg/ha Atrazine, 1.5 L/ha Treflan, 300 ml/ha Lorsban, 200 ml/ha Talstar (PSPE).  18 June: 500 ml/ha Select + oil.

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
Regans Ford, WA Loamy gravel
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Regans Ford, WA Tenosol
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 Regans Ford WA
2013 151.9mm
2012 138.2mm
2011 136.9mm
2010 129.1mm
2009 142.1mm
2008 151.9mm
2007 107.9mm
2006 103.7mm
2005 142.2mm
2004 124.4mm
2003 142.9mm
2002 113.0mm
2001 115.0mm
2000 134.4mm
National soil grid Source: CSIRO/TERN
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



Derived climate information

No observed climate data available for this trial.
Derived climate data is determined from trial site location and national weather sources.

Regans Ford WA


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 last modified: 10-07-2019 13:19pm AEST