Targeting maximum yields of flood irrigated canola in southern NSW

2016

Research organisaton
Funding sources

Trial details

Researcher(s) Luke Gaynor (NSW DPI)
Neroli Graham (NSW DPI)
Daniel Johnston (NSW DPI)
Glenn Morris (NSW DPI)
Tony Napier (NSW DPI)
Cynthia Podmore (NSW DPI)
Deb Slinger (NSW DPI)
Year(s) 2016
Contributor Department of Primary Industries NSW
Trial location(s) Leeton, NSW
Further information View external link
Targeting maximum yields of flood irrigated canola in southern NSW locations
Aims

To evaluate the effects of varietal selection, sowing date, plant population and N management on grain yield, oil content and lodging

Key messages

• Pioneer® 45Y88 (CL) was the highest yielding variety, averaging over 4 t/ha, with Nuseed Diamond and Pioneer® 45Y25 (RR) also achieving high yields.
• Sowing on 5 April resulted in higher grain yield, reduced lodging and lower oil content compared with sowing on 26 April.
• A plant population of 35–56 plants/m2 resulted in higher grain yields than populations of 18 plants/m2 or 68 plants/m2.
• Applying 200 kg N/ha resulted in higher grain yields than 150 kg N/ha when the soil available nitrogen (N) at sowing was 64 kg/ha. Nitrogen rates above 200 kg N/ha resulted in no extra yield.
• Increasing N application rates above 200 kg N/ha reduced oil concentration.
• Crop lodging increased with plant populations above 35 plants/m2 and N rates above 150 kg N/ha.

Lead research organisation N/A
Host research organisation N/A
Trial funding source GRDC DAN00198
Trial funding source DPI NSW
Related program N/A
Acknowledgments

The ‘Southern irrigated cereal and canola varieties achieving target yields’ project, DAN00198, 2014–17, with joint investment by GRDC and NSW DPI. The support of Gabby Napier and Michael Hately with field assessments and data collection is greatly acknowledged.


Other trial partners Not specified
Download the trial report to view additional trial information

Method

Crop type Oilseed: Canola
Treatment type(s)
  • Crop: Variety
  • Fertiliser: Rate
  • Fertiliser: Timing
  • Sowing: Rate
  • Sowing: Timing
Trial type Experimental
Trial design Randomised,Replicated,Blocked

Leeton 2016

Sow rate or Target density 40 plants per square metre
Sow date varied - as per report
Harvest date varied - as per report
Plot size Not specified
Plot replication 3
Plot randomisation yes
Fertiliser

Base fertiliser: SuPerfect 400 kg/ha (32 kg P/ha and 44 kg C/ha)

MAP 150 kg/ha (15 kg N/ha and 15 kg P/ha)
Gran-Am 150 kg/ha (30 kg N/ha and 36 kg S/ha)
Urea 220 kg/ha (101 kg N/ha)

Topdressed fertiliser: (at visible bud)
Experiments 1 and 3: urea 220 kg/ha (101 kg N/ha)
Experiment 2: urea at various rates as per Table 3

 

Fungicide

Prosaro® (210 g/L prothioconazole and 210 g/L tebuconazole) at 400 mL/ha was applied twice to each experiment at the 6-leaf and 20% flowering stages

Other trial notes

This research paper is an extract from the publication Southern NSW Research Results 2017, available at
https://www.dpi.nsw.gov.au/agriculture/broadacre-crops/guides/publications/southern-nsw-research-results

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
Leeton, NSW Grey clay
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Leeton, NSW 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 Leeton NSW
2016 126.5mm
2015 58.4mm
2014 57.8mm
2013 107.5mm
2012 189.7mm
2011 168.7mm
2010 81.7mm
2009 22.9mm
2008 30.1mm
2007 23.6mm
2006 11.2mm
2005 39.9mm
2004 23.1mm
2003 56.3mm
2002 33.9mm
2001 205.8mm
2000 325.5mm
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

Derived climate information

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

Leeton NSW

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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: 07-06-2023 16:19pm AEST