Timing of nitrogen for canola grown in the high rainfall Wreas of Western Australia

2013

Research organisaton
Funding source

Trial details

Researcher(s) Raj Malik
Mark Seymour
Year(s) 2013
Contributor Department of Agriculture and Food WA
Trial location(s) Gibson, WA
Timing of nitrogen for canola grown in the high rainfall Wreas of Western Australia locations
Aims

To investigate the effect of nitrogen rates and time of application on grain yield, oil and gross margins of Roundup Ready and Triazine Tolerant canola.

Key messages
  • Canola grain yield and gross margins were more dependent on nitrogen rates than the application timings.
  • Delaying application of nitrogen after 8 weeks reduced canola yield.  The reduction was greater the higher the proportion of total applied N delayed.  
  • Hyola 404RR produced significantly higher grain yield and oil than ATR Wahoo, but similar gross margins.
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 Western Australia as part of the GRDC/DAFWA co-funded project “Tactical Break Crop Agronomy in Western Australia”. 

The help from Pam Burgess in conducting this trial is greatly appreciated and acknowledged.

Thanks to EDRS Gibson for hosting the trial and to the Esperance RSU for trial management. 


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

Gibson 2013

Sow rate or Target density 40 plants/m²
Sow date 9 May 2014
Harvest date Not specified
Plot size Not specified
Plot replication 3
Fertiliser

Fertiliser (kg/ha):  100 kg/ha of Superphosphate at seeding, 120 kg/ha of Muriate of Potash and 400 kg/ha of gypsum (17% Ca, 14% S) top-dressed over whole site 4 weeks after seeding, 0.7 kg Zn/ha and 0.5 kg Mn/ha sprayed over the whole trial 6 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
Gibson, WA Loamy sand
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Gibson, 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 Gibson WA
2013 557.8mm
2012 553.5mm
2011 549.1mm
2010 540.9mm
2009 552.3mm
2008 551.0mm
2007 554.9mm
2006 539.7mm
2005 545.9mm
2004 549.4mm
2003 566.0mm
2002 539.6mm
2001 548.2mm
2000 548.5mm
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

Gibson WA 2013


Observed climate information

Rainfall avg gsr (mm) 433mm

Derived climate information

Gibson 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 12:03pm AEST