Modelling ewes grazing dual-purpose wheat

CC BY 4.0

Research organisaton
Funding source

Trial details

Researcher(s) MA Friend (Charles Sturt University)
SR McGrath (Charles Sturt University)
JM Virgona (Charles Sturt University)
Year(s) 2014
Contributor Central West Farming Systems
Trial location(s) Wagga Wagga, NSW
Modelling ewes grazing dual-purpose wheat locations

To use the simulation software AusFarm was used to model a mixed-farming system at Wagga Wagga with Merino ewes joined to terminal sires and grazing lucerne-subterranean clover pasture over a 41-year period.

Key messages

Allowing ewes access to some of the dual-purpose wheat sown on a mixed farm can increase gross margins
from the sheep operation by increasing stocking rates and the amount of lamb and wool produced and reducing supplementary feeding requirements.

Lead research organisation N/A
Host research organisation N/A
Trial funding source MLA
Related program N/A

The authors gratefully acknowledge the assistance of Neville Herrmann, Eric Zurcher and Andrew Moore
(CSIRO) and Susan Robertson (CSU) for advice with setting up the model, and the financial contributions
of Meat and Livestock Australia, Australian Wool Education Trust, NSW Rural Assistance Authority and Future Farm Industries CRC.

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


Crop type Wheat
Treatment type(s)
  • Grazing
Trial type Experimental
Trial design Unknown

Wagga Wagga 2014

Sow date Not specified
Harvest date Not specified
Plot size Not specified
Plot replication Not specified
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
Wagga Wagga, NSW Not specified
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Wagga Wagga, 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 Wagga Wagga NSW
2014 544.9mm
2013 539.6mm
2012 584.2mm
2011 598.4mm
2010 615.1mm
2009 547.6mm
2008 555.6mm
2007 504.5mm
2006 527.0mm
2005 574.3mm
2004 545.4mm
2003 523.7mm
2002 544.2mm
2001 559.1mm
2000 499.5mm
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



Derived climate information

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

Wagga Wagga NSW

NOTE: Exact trial site locality unknown - Climate data may not be accurate

Some data on this site is sourced from the Bureau of Meteorology

SILO weather estimates sourced from
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: 08-07-2019 16:34pm AEST