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Timing of nitrogen in low rainfall for canola yield, iil and returns

2013
CC BY 4.0

Research organisation
Funding sources
Liebe Group
<abbr title='Grains Research and Development Corporation'>GRDC</abbr> <abbr title='Department of Agriculture and Food (Western Australia)'>DAFWA</abbr>

Trial details

Researcher(s) Bob French (DAFWA)
Mark Seymour (DAFWA)
Year(s) 2013
Contributor Liebe Group
Trial location(s) West Wubin, WA
Timing of nitrogen in low rainfall for canola yield, iil and returns locations
Aims

To investigate the nitrogen rate and time of application response of canola varieties to yield and oil content of TT and RR hybrids in comparison with open-pollinated types to

  • provide growers in lower rainfall environments with guidelines on optimal nitrogen rates and times of application to maximise grain and oil yields, and
  • determine if the management of hybrid canola nutrition is different to that of open pollinated varieties due to different responses to N rates and timing.
Key messages
Not specified
Lead research organisation N/A
Host research organisation N/A
Trial funding source GRDC
Trial funding source DAFWA
Related program N/A
Acknowledgments

GRDC and DAFWA for funding this experimental series. Shari Dougall and Bruce Thorpe, DAFWA, Wongan Hills RSU Andy Sutherland and Allen Randall, DAFWA, South Perth
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

West Wubin 2013

Sow date 9 May 2013
Harvest date Not specified
Plot size 20m x 1.54m
Plot replication 3
Fertiliser

65 kg/ha BigPhos treated with Impact at sowing,120 kg/ha Muriate of Potash plus Nitrogen as per treatment schedule
Herbicide

2 L/ha Spray.Seed 250, 1.5 L/ha Trifluralin,1.1 kg/ha Atrazine on TT plots,900 mL/ha Roundup Ready on RR plots,500 mL/ha Select, 0.1% Hasten
Download the trial report to view additional method/treatment information

Download results

Trial results Table 1

# Variety
 Treatment 1
Treatment 2
Grain yield (t/ha)
1 █ Hyola █ 25N +25N █ 0WAS + 12WAS 1.39
2 █ Telfer █ 25N +25N █ 0WAS + 12WAS 0.81
3 █ Hyola █ 25N +25N +25N █ 0WAS + 4WAS + 8 WAS 1.38
4 █ Telfer █ 25N +25N +25N █ 0WAS + 4WAS + 8 WAS 1
5 █ Hyola █ 25N +25N █ 0WAS + 4WAS 1.39
6 █ Telfer █ 25N +25N █ 0WAS + 4WAS 0.83
7 █ Hyola █ 25N +25N █ 0WAS + 8WAS 1.43
8 █ Telfer █ 25N +25N █ 0WAS + 8WAS 0.87
9 █ Hyola █ 25N + 50N + 25N █ 0WAS + 4WAS + 8 WAS 1.45
10 █ Telfer █ 25N + 50N + 25N █ 0WAS + 4WAS + 8 WAS 0.94
11 █ Hyola █ 25N █ 0WAS 1.27
12 █ Telfer █ 25N █ 0WAS 0.78
13 █ Hyola █ 25N █ 12WAS 1.36
14 █ Telfer █ 25N █ 12WAS 0.74
15 █ Hyola █ 25N █ 4WAS 1.26
16 █ Telfer █ 25N █ 4WAS 0.82
17 █ Hyola █ 25N █ 8WAS 1.22
18 █ Telfer █ 25N █ 8WAS 0.87
19 █ Hyola █ 50N █ 0WAS 1.37
20 █ Telfer █ 50N █ 0WAS 0.89
21 █ Hyola █ 50N █ 12WAS 1.41
22 █ Telfer █ 50N █ 12WAS 0.82
23 █ Hyola █ 50N █ 4WAS 1.41
24 █ Telfer █ 50N █ 4WAS 0.83
25 █ Hyola █ 50N █ 8WAS 1.39
26 █ Telfer █ 50N █ 8WAS 0.86
27 █ Hyola █ Control (0N) █ Control 1.14
28 █ Telfer █ Control (0N) █ Control 0.69

Grain yield t/ha

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Observed trial site soil information
Trial site soil testing
Site Depth Type pH EC P K N A OC CAT
West Wubin, WA 0 - 10cm Sandy loam 4.70 0.09
West Wubin, WA 10 - 30cm Sandy loam 5.10
Soil conditions
Trial site Soil texture
West Wubin, WA Sandy loam
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
West Wubin, 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 West Wubin WA
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Climate

West Wubin WA 2013

Observed climate information

Rainfall trial gsr (mm) 228mm

Derived climate information

West Wubin 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 report and links

2013 trial report