Timing of nitrogen in low rainfall canola

2013

Research organisaton
Funding source

Trial details

Researcher(s) Mark Seymour
Year(s) 2013
Contributor Department of Agriculture and Food WA
Trial location(s) Salmon Gums, WA
Timing of nitrogen in low rainfall canola locations
Aims

To investigate the response to changing the nitrogen rate and changing the time of application.  Canola yield and oil will be measured and RR hybrids will be compared with open-pollinated TT types (OP TT).

Key messages

In this 2013 trial

  • Time of nitrogen application had a minor effect on grain yield, oil and gross margins
  1. applying 50 kg N/ha in a split application with 25 kg N/ha applied at seeding and 25 kg N/ha applied 12WAS was the equal of any other treatment.
  • Both CB Telfer and Hyola 404RR responded similarly to nitrogen rate and timing of application.
  1. Consequently due to lower seed costs, CB Telfer produced on average higher gross margins of $415/ha compared to $307/ha for Hyola 404RR.
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 the Osborne family for hosting the trial and to the Esperance RSU for trial management.  Pam Burgess (DAFWA. Esperance) 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)
  • Fertiliser: Rate
  • Fertiliser: Timing
Trial type Experimental
Trial design Replicated

Salmon Gums 2013

Sow rate or Target density 30 plants/m²
Sow date 17 April 2013 17 April 2013
Harvest date Not specified
Plot size Not specified
Plot replication 3
Fertiliser

Fertiliser (kg/ha): 100 kg/ha of Superphos 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
Salmon Gums, WA Sandy loam
Derived trial site soil information
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 Salmon Gums WA
2013 455.7mm
2012 450.6mm
2011 422.2mm
2010 424.5mm
2009 450.8mm
2008 461.0mm
2007 447.7mm
2006 438.3mm
2005 429.1mm
2004 444.5mm
2003 473.4mm
2002 445.4mm
2001 416.1mm
2000 424.5mm
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

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Climate

Salmon Gums WA 2013


Observed climate information

Rainfall avg gsr (mm) 206mm

Derived climate information

Salmon Gums 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 last modified: 28-05-2019 12:05pm AEST