Conserving moisture during summer


Research organisaton

Trial details

Researcher(s) Claire Browne (BCG)
James Hunt (BCG)
Damian Mowat (CSIRO)
Anthony Whitbread (BCG)
Year(s) 2010
Contributor Birchip Cropping Group
Trial location(s) Hopetoun, VIC
Conserving moisture during summer locations

To quantify how paddock stubble load and weed burden during summer can affect available soil water, nutrients and subsequent crop yield.

Key messages
  • Weeds have the biggest impact on summer water storage.
  • Over the last two summers, the method of weed control had little effect on moisture storage
  • Even under adequate growing season rainfall, weed control is necessary because weeds tie up and/or prevent significant amounts of nitrogen mineralizing, which cost 0.5t/ha of the canola yield.
Lead research organisation N/A
Host research organisation N/A
Related program N/A
Acknowledgments N/A
Other trial partners Not specified
Download the trial report to view additional trial information


Crop type Canola
Treatment type(s)
  • Soil: Preparation
  • Stubble: Management
Trial type Experimental
Trial design Replicated

Hopetoun 2010

Sow date 24 April 2010
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
Hopetoun, VIC Not specified
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Hopetoun, VIC 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 Hopetoun VIC
2010 527.8mm
2009 462.3mm
2008 454.1mm
2007 455.4mm
2006 441.2mm
2005 483.1mm
2004 436.8mm
2003 429.3mm
2002 387.1mm
2001 445.0mm
2000 453.4mm
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



Derived climate information

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

Hopetoun VIC

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.