Sowing early to maximise wheat yield on low fallow

CC BY 4.0

Research organisaton
Funding source

Trial details

Researcher(s) Neil Fettell (CWFS)
Bonnie Flohr (AgGrow)
Laura Goward (CSIRO)
Barry Haskins (CWFS)
James Hunt (AgGrow)
Brad Rheinheimer (AgGrow)
Antony Swan (AgGrow)
Rachael Whitworth (AgGrow)
Year(s) 2015
Contributor Central West Farming Systems
Trial location(s) Rankins Springs, NSW
Sowing early to maximise wheat yield on low fallow locations

To outline how farmers can maximise wheat yield on long fallow by sowing early with slow developing cultivars.

Key messages

Early sowing is essential in order to maximise yield of wheat crops grown on long (18 month) fallow. Long fallowing and early sowing are complementary practices, as the fallow reduces weeds and diseases which can be difficult to control in early sown crops, and early sowing with slow developing cultivars allows the crop to better use soil water that is stored during the fallow. Stored soil water also helps to establish early sown crops when there is minimal autumn rainfall. This fact sheet outlines how farmers can maximise wheat yield on long fallow by sowing early with slow developing cultivars, and is based on two years of GRDC funded research conducted by AgGrow Agronomy, CWFS and CSIRO in western NSW.

Lead research organisation Central West Farming Systems
Host research organisation N/A
Trial funding source GRDC CSP00178
Related program N/A

This factsheet has been prepared as part of GRDC Project CSP00178. The local project team includes Neil Fettell (CWFS), Barry Haskins, Rachael Whitworth (AgGrow Agronomy) James Hunt, Bonnie Flohr, Tony Swan, Brad Rheinheimer and Laura Goward (CSIRO Agriculture). The project team gratefully acknowledges the guidance of local farmers, particularly Michael Pfitzner who hosted Rankins Springs trials in 2014 and 2015.

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


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

Rankins Springs 2015

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
Rankins Springs, NSW Not specified
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Rankins Springs, 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 Rankins Springs NSW
2015 613.9mm
2014 587.3mm
2013 576.7mm
2012 604.8mm
2011 622.3mm
2010 652.9mm
2009 605.3mm
2008 590.0mm
2007 508.8mm
2006 567.9mm
2005 608.8mm
2004 566.9mm
2003 555.5mm
2002 508.4mm
2001 548.8mm
2000 500.6mm
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



Derived climate information

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

Rankins Springs 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: 26-11-2019 15:08pm AEST