Phosphorus rate trials

2012
CC BY 4.0

Research organisatons

Trial details

Researcher(s) Sean Mason (University of Adelaide)
Year(s) 2012
Contributor FarmLink Research
Trial location(s) Ariah Park, NSW
Phosphorus rate trials locations
Aims

To determine the impact of reducing fertiliser rates following a run of low yielding seasons.

Key messages

There was a significant yield response to 0 P rates again in year four at Ariah Park.

Lead research organisation University of Adelaide
Host research organisation FarmLink Research
Related program N/A
Acknowledgments

Matt and Sam Dart, Daryl and Peter Harper, Ben Beck, Craig Warren, Terry Brown, Dr Sean Mason (University of Adelaide) and Dr Mark Conyers (NSW DPI).


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

Method

Crop type Oilseed: Canola
Treatment type(s)
  • Fertiliser: Rate
Trial type Experimental
Trial design Replicated

Ariah Park 2012

Sowing machinery

Growers used their own seeding equipment with auto steer guidance to eliminate errors or overlap.

Sow date Not specified
Harvest date Not specified
Plot size Not specified
Plot replication 3
Fertiliser

As per treatments

Download the trial report to view additional method/treatment information

Download results

Trial results Ariah Park

# Treatment 1
Colwell phosphorus (mg/kg) Grain yield (t/ha) DGT (ug/kg)
1 0kg/ha P 42 1.1 66
2 5kg/ha P 48 1.4 91
3 10kg/ha P 51 1.4 109
4 20kg/ha P 41 1.4 47

Grain yield t/ha


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Colwell phosphorus mg/kg


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DGT ug/kg


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Trial results Grogan

# Treatment 1
Colwell phosphorus (mg/kg) Grain yield (t/ha) DGT (ug/kg)
1 0kg/ha P 42 1.1 66
2 5kg/ha P 48 1.4 91
3 10kg/ha P 51 1.4 109
4 20kg/ha P 41 1.4 47

Grain yield t/ha


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Colwell phosphorus mg/kg


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DGT ug/kg


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Trial results Downside

# Treatment 1
Colwell phosphorus (mg/kg) Grain yield (t/ha) DGT (ug/kg)
1 0kg/ha P 42 1.1 66
2 5kg/ha P 48 1.4 91
3 10kg/ha P 51 1.4 109
4 20kg/ha P 41 1.4 47

Grain yield t/ha


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Colwell phosphorus mg/kg


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DGT ug/kg


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Trial results Harden

# Treatment 1
Colwell phosphorus (mg/kg) Grain yield (t/ha) DGT (ug/kg)
1 0kg/ha P 42 1.1 66
2 5kg/ha P 48 1.4 91
3 10kg/ha P 51 1.4 109
4 20kg/ha P 41 1.4 47

Grain yield t/ha


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Colwell phosphorus mg/kg


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DGT ug/kg


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Observed trial site soil information
Trial site soil testing
Not specified
Soil conditions
Trial site Soil texture
Ariah Park, NSW Not specified
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Ariah Park, NSW 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 Ariah Park NSW
2012 493.6mm
2011 505.0mm
2010 508.1mm
2009 482.5mm
2008 489.7mm
2007 384.0mm
2006 416.2mm
2005 463.1mm
2004 429.8mm
2003 405.8mm
2002 385.1mm
2001 409.6mm
2000 387.6mm
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.

Ariah Park NSW

NOTE: Exact trial site locality unknown - Climate data may not be accurate
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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: 09-12-2019 09:38am AEST