Nitrogen applications to maximise canola yield


Research organisaton
Funding source

Trial details

Researcher(s) Leigh Davis (SARDI)
Brenton Spriggs (SARDI)
Andrew Ware (SARDI)
Year(s) 2015
Contributor SARDI Minnipa Agricultural Centre
Trial location(s) Minnipa Agricultural Centre, SA
Nitrogen applications to maximise canola yield locations

To push the nitrogen inputs at Minnipa Agricultural Centre to achieve a target yield of 2 t/ha.

Key messages
  • Canola yields of 2 t/ha are possible in an average growing season (decile 5) at Minnipa Agricultural Centre.
  • The total application of 85 kg/ha N and 108 kg/ha N exceeded the 2 t/ha target, producing 2.13 t/ha and 2.22 t/ha respectively, and 62 kg/ha N very nearly achieved 2 t/ha (1.96 t/ha).
  • Soil tests determined that 70-80 kg/ha N was available in the soil, including mineralisation, which predicted a potential yield of 1 t/ha.
Lead research organisation SARDI Minnipa Agricultural Centre
Host research organisation N/A
Trial funding source SAGIT S1113
Related program N/A

This trial was done in conjunction with the SAGIT S1113 – Improving canola establishment project.


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


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

Minnipa Agricultural Centre 2015

Sow date 29 April 2015
Harvest date 26 October 2015
Plot size 1.5m x 10m
Plot replication 3


Total units nitrogen

  All treatments received 8 units of phosphorus.



65 kg/ha 19:13:0 S9% + 57kg/ha urea @ sowing + 50 kg/ha urea @ 4 leaf, 9 leaf & budding



65 kg/ha 19:13:0 S9% + 57 kg/ha urea @ sowing + 50 kg


2 L/ha Sprayseed, 1.5 L/ha Triflur X was used as a knockdown at sowing. Grassy weeds were controlled 25 June with 0.18 L/ha of Elantra Xtreme, 1 L/100L Kwicken. No triazine herbicides were used or needed for broad-leaved weeds.


1 L/ha Lorsban was applied post sowing, pre emergence for insect control. 25 June: 0.5 L/ha Astound Duo

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
Minnipa Agricultural Centre, SA 0 - 100cm 80.00
Soil conditions
Trial site Soil texture
Minnipa Agricultural Centre, SA Red loam
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Minnipa Agricultural Centre, SA Rudosol
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 Minnipa Agricultural Centre SA
2015 321.8mm
2014 374.5mm
2013 309.1mm
2012 331.2mm
2011 372.1mm
2010 355.3mm
2009 367.4mm
2008 310.4mm
2007 330.8mm
2006 342.9mm
2005 316.5mm
2004 323.7mm
2003 305.0mm
2002 305.7mm
2001 303.3mm
2000 332.8mm
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



Minnipa Agricultural Centre SA 2015

Observed climate information

Rainfall avg ann (mm) 325mm
Rainfall avg gsr (mm) 241mm
Rainfall trial total (mm) 258mm
Rainfall trial gsr (mm) 333mm

Derived climate information

Minnipa Agricultural Centre SA


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.

Trial last modified: 08-10-2019 14:15pm AEST