Does nitrogen application timing in canola matter?

2013
CC BY 4.0

Research organisaton

Trial details

Researcher(s) Craig Farlow (Incitec Pivot)
Ed Hilsdon (SFS)
Gina Kreeck (Incitec Pivot)
Lee Menhenett (Incitec Pivot)
Year(s) 2013
Contributor Southern Farming Systems
Trial location(s) Westmere, VIC
Does nitrogen application timing in canola matter? locations
Aims

To re-examine the effect of N rate and application timing on canola yield, seed oil and protein content, and apparent N fertiliser efficiencies.

Key messages
  • Canola yield was increased and oil % marginally decreased with increasing N rate applied.
  • The highest yield (4.2 t/ha) was achieved at the highest N rate (160 kgN/ha).
  • With adequate starting soil N (67 kgN/ha) and good spring rain, N application timing made little difference.
  • 30% N fertiliser recovery in grain remains a good ‘rule of thumb’ for canola N budgeting.
  • Easy N® application shows promise for topping up N at early flower.
     
Lead research organisation N/A
Host research organisation N/A
Related program N/A
Acknowledgments N/A
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 Randomised,Replicated,Blocked

Westmere 2013

Sow date 9 May 2013
Harvest date Not specified
Plot size Not specified
Plot replication Not specified
Download the trial report to view additional method/treatment information

Download results

Trial results Table 1

# Treatment 1
Treatment 2
Treatment 3
Treatment 4
Grain N yield (kgN/ha) Protein (%) Oil yield (kg/ha) Oil + protein (%) N fertiliser recovery in grain (%) Oil (%) Grain yield (t/ha)
1 control (no N) 101.6 20.2 1491 67.6 na 47.4 3.15
2 40N 40 kgN/ha 117.8 20.2 1745 68.1 40.4 47.9 3.65
3 40 40N, 80 kgN/ha 126.1 20.9 1774 67.9 30.6 47 3.77
4 40 40 40N, 120 kgN/ha 138.2 21.6 1868 68.1 30.5 46.6 4.01
5 40 40 40N 40N, 160 kgN/ha 149.9 22.3 1932 68.3 30.2 46 4.2
6 N at seedling stage 2L 80 kg N/ha 135 21.5 1848 68.5 41.7 47.1 3.92
7 N at 6-8 leaf 80 kg N/ha 131.2 21.3 1770 67.4 37 46.1 3.84
8 N at stem elong 80 kg N/ha 125 21.3 1723 68.2 29.3 46.9 3.67
9 N at 20% flower 80 kg N/ha 129.7 21.7 1731 68 35.1 46.3 3.74
10 Entec urea at cot-2L 80 kg N/ha 121.2 20.9 1731 68.7 24.4 47.8 3.62
11 Entec urea at SE 80 kg N/ha 134 21.7 1786 68.1 40.4 46.4 3.85
12 Entec urea fb urea 80 kg N/ha 123.8 21.5 1687 68.3 27.6 46.9 3.6
13 Urea fb EasyN at SE 80 kg N/ha 124.5 21 1746 68.1 28.6 47.1 3.71
14 Urea fb EasyN 20%F 80 kg N/ha 125.8 21.1 1756 68.2 30.1 47.2 3.73
15 EasyN 80N at 20%F 80 kg N/ha 128.7 22.2 1680 68.6 33.8 46.4 3.62
16

Grain yield t/ha


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Grain N yield kgN/ha


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N fertiliser recovery in grain %


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Oil %


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Oil + protein %


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Oil yield kg/ha


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Protein %


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Observed trial site soil information
Trial site soil testing
Not specified
Soil conditions
Trial site Soil texture
Westmere, VIC Not specified
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Westmere, VIC 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 Westmere VIC
2013 451.8mm
2012 466.6mm
2011 494.5mm
2010 483.6mm
2009 416.3mm
2008 394.1mm
2007 381.0mm
2006 367.4mm
2005 388.6mm
2004 392.0mm
2003 416.1mm
2002 402.3mm
2001 451.9mm
2000 441.1mm
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

Derived climate information

No observed climate data available for this trial.
Derived climate data is determined from trial site location and national weather sources.

Westmere VIC

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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: 23-10-2019 12:09pm AEST