Setting up your season: conserving summer moisture


Research organisaton
Funding source

Trial details

Researcher(s) Claire Browne (BCG), James Hunt and Therese McBeath (CSIRO)
Year(s) 2012
Contributor Birchip Cropping Group
Trial location(s) Hopetoun, VIC
Setting up your season: conserving summer moisture locations

To quantify the effect of paddock stubble management and weed burden during the summer fallow on crop available soil water, nutrients and yield.

Key messages

For the fourth year in a row grain yield was increased by controlling summer weeds. There has been a return on investment in all years of this trial, by controlling summer weeds. Retaining or removing stubble has only a minor effect on yield.

Lead research organisation N/A
Host research organisation N/A
Trial funding source GRDC CPS00111,BWD00012
Related program N/A

This project was funded by GRDC project BWD00012 Yielding benefits through partnerships and CPS00111 Identifying farm scale opportunities to improve WUE: a nationally coordinated systems approach. Contributors included: Warakirri Bullarto Downs for hosting the experiments over 5 years; Ian Delmenico of CropRite Pty Ltd for site EM survey; Damian Mowat and Brett Cox of CSIRO for soil water characterisations; John Stuchbery of JSA Independent for agronomic advice and Mel Cann of DPI Victoria for providing soil descriptions.

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


Crop type Lentils
Treatment type(s)
  • Soil: Type
  • Stubble: Management
Trial type Experimental
Trial design Replicated

Hopetoun 2012

Sow date 4 May 2012
Harvest date Not specified
Plot size Not specified
Plot replication 4

4 May - MAP + Zn (55kg/ha)

Download the trial report to view additional method/treatment information

Download results

Trial results Table 1

@T1: Pre Sowing
# Treatment 1
Treatment 2
Grain yield (t/ha) Gross margin ($/ha) Mineral N (kg/ha) Plant available water (mm)
1 Standing stubble Sand 1 198 131 50
1 Standing stubble + summer weeds Sand 0.6 80 77 23
2 Slashed stubble Sand 1 191
2 Bare earth Sand 0.9 158 105 66
3 Bare earth + summer weeds Sand 0.7 85 70 10
3 Cultivation Sand 1 211
4 Standing stubble Clay 1.2 259 145 103
4 Standing stubble + summer weeds Clay 0.7 104 97 62
5 Slashed stubble Clay 1.2 272
5 Bare earth Clay 1 167 173 76
6 Bare earth + summer weeds Clay 0.5 26 111 62
6 Cultivation Clay 1.1 244

Grain yield t/ha


Gross margin $/ha


Mineral N kg/ha


Plant available water mm

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
Trial site Soil order
Hopetoun, VIC Tenosol
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



Hopetoun VIC 2012

Observed climate information

Rainfall trial gsr (mm) 150mm

Derived climate information

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.

Trial last modified: 13-09-2017 10:13am AEST