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) Cunderdin WANTFA Site, 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
  • Pioneer 43Y23 (RR) perform better in terms of higher grain yield, oil yield and gross margins than Sturt TT, with both varieties producing similar oil %.
  • Grain yield responded to applied nitrogen up to 30 kg N/ha.
  • Maximum oil% was produced with no applied nitrogen.
  •  Gross margins also responded to nitrogen application up to ~ 30 kg N/ha after which further increases in nitrogen led to no further financial gain.
  • Overall when nitrogen was applied it did not alter the response to nitrogen of both varieties for GY, oil, oil yield and GM. 
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

Cunderdin WANTFA Site 2014

Sow rate or Target density 30 plants/m²
Sow date 29 April 2014
Harvest date Not specified
Plot size Not specified
Plot replication 3
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
Cunderdin WANTFA Site, WA Deep sandy duplex
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Cunderdin WANTFA Site, WA Sodosol
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 Cunderdin WANTFA Site WA
2014 199.8mm
2013 232.8mm
2012 211.9mm
2011 193.5mm
2010 169.6mm
2009 219.9mm
2008 208.0mm
2007 195.1mm
2006 214.2mm
2005 168.3mm
2004 184.5mm
2003 207.6mm
2002 153.7mm
2001 159.6mm
2000 240.3mm
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

Cunderdin WANTFA Site WA 2014


Observed climate information

Rainfall avg gsr (mm) 266mm

Derived climate information

Cunderdin WANTFA Site 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 12:09pm AEST