Timing of Nitrogen in Low Rainfall Canola

2014

Research organisaton
Funding source

Trial details

Researcher(s) Mark Seymour
Sally Sprigg
Year(s) 2014
Contributor Department of Agriculture and Food WA
Trial location(s) Wongan Hills, 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
  • Grain yield responded to applied nitrogen up to 30 kg N/ha.
  • Highest oil %, oil yield and gross margins were obtained with no applied nitrogen.
  • When nitrogen was applied, did not alter the yield, oil or $/ha response to nitrogen of both varieties.
  • Thus 30, 50 or 70 kg N/ha applied either in splits at seeding and 8 weeks or seeding and 12 weeks provided similar responses.
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 Merredin RSU for trial management.  Laurie Maiolo 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

Wongan Hills 2014

Sow rate or Target density 30 plants/m²
Sow date 13 May 2014
Harvest date Not specified
Plot size Not specified
Plot replication 3
Paddock history Paddock rotation: Wheat 2013, Pasture 2012, Pasture 2011, Barley 2010.
Fertiliser

Basal fertiliser – 100 kg/ha SuperPhos at seeding, 400 kg/ha of gypsum and 120 kg/ha of Muriate of Potash applied by hand over whole site on 10th of June.

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 Yellow deep 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
2014 84.2mm
2013 152.3mm
2012 150.1mm
2011 126.7mm
2010 119.9mm
2009 138.1mm
2008 151.1mm
2007 124.1mm
2006 121.9mm
2005 85.1mm
2004 99.3mm
2003 128.5mm
2002 78.7mm
2001 100.8mm
2000 197.9mm
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

Wongan Hills WA 2014


Observed climate information

Rainfall avg gsr (mm) 242mm

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.