Wheat response to P and N at Dandaragan 2013

CC BY 4.0

Research organisatons
Funding source

Trial details

Researcher(s) Brett Beard (Summit Fertilizers)
Year(s) 2013
Contributor West Midlands Group
Trial location(s) Regans Ford, WA
Wheat response to P and N at Dandaragan 2013 locations

To investigate the response of wheat to different rates of applied P and N.

Key messages

Despite weed competition, less-than-ideal winter weather and soil conditions, wheat responded to both P and N application at this site. Grower returns on fertilizer investment were best with P applied at 8 to 16 kg/ha and N applied at 40 kg/ha. Greater response and returns from increased fertilizer application may be expected with improved early-to-mid season moisture conditions and less weed competition.

Lead research organisation Summit Fertilizers
Host research organisation West Midlands Group
Trial funding source Summit
Related program N/A

Living Farm for establishment and management of the trial for Summit Fertilizers and Peter Negus for allowing the trial on his property.

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


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

Regans Ford 2013

Sow rate or Target density 70kg/ha
Sowing machinery

Small plot seeder, knife points and press wheels.

Sow date 10 May 2013
Harvest date Not specified
Plot size 2m x 12m
Plot replication Not specified

SOP 100 kg/ha IBS Stratasol Zinc 300 mL/ha Big Red Copper 300 mL/ha.


Pre-emergent: 118 g/ha Sakura

2 L/ha Avadex

400 mL/ha Diuron

3 g/ha Ally

2 L/ha SpraySeed

Post-emergent: 30 g/ha Monza               (2/06/13)

350 mL/ha Axial                                      (15/06/13)

670 mL/ha Velocity                                 (25/06/13)


Pre-emergent: 200 mL/ha Bifenthrin

1 L/ha Chlorpyriphos

Post-emergent: 300 mL/ha Chlorpyrifos (26/05/13)

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
Regans Ford, WA Calcareous sand
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Regans Ford, WA Tenosol
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 Regans Ford WA
2013 151.9mm
2012 138.2mm
2011 136.9mm
2010 129.1mm
2009 142.1mm
2008 151.9mm
2007 107.9mm
2006 103.7mm
2005 142.2mm
2004 124.4mm
2003 142.9mm
2002 113.0mm
2001 115.0mm
2000 134.4mm
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



Regans Ford WA 2013

Observed climate information

Rainfall avg gsr (mm) 536mm
Rainfall trial gsr (mm) 471mm

Derived climate information

Regans Ford WA


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: 23-07-2019 10:44am AEST