Grazing canola demonstration - Nairns


Research organisaton
Funding sources

Trial details

Researcher(s) Richard Quinlan (Planfarm)
Year(s) 2010
Contributor West Midlands Group
Trial location(s) Site 1, East Binnu, WA
Grazing canola demonstration - Nairns locations

To assess whether the effects of grazing canola with sheep during the growing season: factors being assessed are yield and quality, dry matter production and grazing value.

Key messages

Canola provided significant grazing value during the growing season as well as during summer.The varieties tested showed minimal yield penalties from grazing with some varieties showing a positive yield advantage from the grazing operation.Grazing canola crops were able to provide good weed control and will allow the following wheat crop to benefit from this.Grazing canola and cereal crops allows farmers to alter their stocking rate quickly and easily as they progress through the season. This practise will mean in better seasons a much smaller proportion of paddocks will need to be left for stock and more paddocks can be taken through to harvest which will result in a significant increase in farm profitability. In poor seasons there will be less paddocks taken though to harvest which will result in a reduction in grain income, higher sheep grazing losses and lower farm profitability. The overall profitability of grazing cereal crops will depend on the frequency of dry years and good years.Don Nairn finds that grazing cereal crops takes the stress out of running sheep as there is always an option for the farmer when feed runs short (ie he can simply graze another crop). Hopefully this trial gives farmers a better appreciation of where the dollars fall when crops are grazed.

Lead research organisation N/A
Host research organisation N/A
Trial funding source GRDC
Trial funding source Caring for our Country
Related program N/A

Thanks to Don Nairn for allowing the trial to take place on his property as well as the many hours involved in recording sheep movements and yield and quality data.Funding for this project is provided by GRDC, in partnership with the Federal Government’s Caring for our Country program as part of Grain & Graze II.

Other trial partners Grain & Graze II
Download the trial report to view additional trial information


Crop type Canola
Treatment type(s)
  • Grazing: Regime
  • Variety: Type
Trial type Experimental
Trial design Unknown

East Binnu 2010

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

Download results

Trial results Table 1

# Variety
Treatment 1
Net margin ($/ha) Gross margin ($/ha)
1 44Y84 ITH Not grazed 98.26 217.36
2 45Y82 ITH Not grazed -160.14 155.48
3 571CL ITH Not grazed -18.7 296.92
4 Hurricane TT Not grazed -123.84 121.16
5 44Y84 ITH Grazed -31.79 200.2
6 45Y82 ITH Grazed 97.17 329.16
7 571CL ITH Grazed -15.15 216.84
8 Hurricane TT Grazed -83.37 78

Gross margin $/ha


Net margin $/ha

Observed trial site soil information
Trial site soil testing
Not specified
Soil conditions
Trial site Soil texture
Site 1, East Binnu, WA Not specified
Derived trial site soil information
Australian Soil Classification Source
Trial site Soil order
Site 1, East Binnu, WA Chromosol
National soil grid Source
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.

Site 1, East Binnu WA

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.

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Trial last modified: 27-06-2019 13:35pm AEST