Role of stubble management on the severity and duration of frost and its impact on grain yield

CC BY 4.0

Research organisaton
Funding source

Trial details

Researcher(s) Ben Biddulph (DAFWA)
Sheree Blechynden (Facey Group)
Sarah Hyde (Living Farm)
Rebecca Jenkinson (Living Farm)
Year(s) 2014
Contributor Facey Group
Trial location(s) Wickepin, WA
Role of stubble management on the severity and duration of frost and its impact on grain yield locations

To quantify the impact of stubble on the extent, severity and duration of frost and determine its effect on canopy temperature and grain yield.

Key messages

Insufficient frost events occurred at Wickepin during the susceptible windows in 2014 to cause significant frost damage. Temperature results demonstrated that low in the landscape retained stubble increased the severity of the frost in one of the 10 frost events, but also increased the duration of frost events. Results from 2014 were not conclusive at Wickepin to demonstrate whether retaining stubble increases the incidence or severity of frost.

Lead research organisation N/A
Host research organisation Facey Group
Trial funding source GRDC DAW00214
Related program N/A

Karyn Reeves, DAFWA Statistician, GRDC for funding the trial. Peter Hanson, Theweatherlogger for installation, maintenance and data acquisition of onsite weather stations. The following people are acknowledged for their significant contribution for the successful completion of the trials;, Gary Lang, Wyoming Downs.

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


Crop type Cereal (Grain): Wheat
Treatment type(s)
  • Stubble: Management
  • Stubble: Type
Trial type Experimental
Trial design Replicated

Wickepin 2014

Sow rate or Target density 65Kg/ha
Sow date 31 May 2014
Harvest date Not specified
Plot size 30m x 200m
Plot replication 3
Paddock history 2013- Wheat

35Kg/ha MAP + 30L/ha Flexi-N

Download the trial report to view additional method/treatment information

Download results

Trial results Table 1

# Variety
Treatment 1
Treatment 2
NDVI (.) Grain yield (t/ha) Maturity (days from seeding to flowering) (no. of days)
1 Mace Low landscape Standing Stubble 0.59 4.38 114
2 Mace Low landscape Removed Stubble 0.63 4.39 114
3 Mace Low landscape Cultivated 0.55 4.61 115
4 Mace Mid Landscape Standing Stubble 0.6 4.95 114
5 Mace Mid Landscape Removed Stubble 0.53 3.89 112
6 Mace Mid Landscape Cultivated 0.6 5.09 114
7 Mace High landscape Standing Stubble 0.46 3.05 115
8 Mace High landscape Removed Stubble 0.4 3.58 113
9 Mace High landscape Cultivated 0.57 4.51 113

Grain yield t/ha


Maturity (days from seeding to flowering) no. of days



Observed trial site soil information
Trial site soil testing
Not specified
Soil conditions
Trial site Soil texture
Wickepin, WA Loamy sand
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Wickepin, WA 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 Wickepin WA
2014 185.0mm
2013 210.2mm
2012 222.9mm
2011 187.3mm
2010 176.5mm
2009 187.7mm
2008 169.3mm
2007 158.8mm
2006 223.1mm
2005 217.7mm
2004 180.7mm
2003 225.4mm
2002 195.5mm
2001 209.8mm
2000 273.0mm
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.

Wickepin WA


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 report and links

2014 trial report