Summer weed trial


Research organisaton

Trial details

Researcher(s) N/A
Year(s) 2005
Contributor Birchip Cropping Group
Trial location(s) Watchupga East, VIC
Summer weed trial locations

To determine which summer weed control method is most efficient and economical.

Key messages
  • In dry regions, summer fallowing is not just about controlling weeds but mainly about conserving moisture!
  • Cultivation conserved the most amount of soil moisture over the summer period. ƒ
  • The three treatments which controlled summer weeds: (i) cultivation every three weeks; (ii) cultivation when required; and (iii) knockdown when required, had a significantly higher yield (0.4 to 0.7 t/ha) compared to the treatments where there was no or poor summer weed control. ƒ
  • Greater than 80mm of available moisture was lost under heavy heliotrope and melon populations
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 Wheat
Treatment type(s)
  • Herbicide: Type
Trial type Experimental
Trial design Randomised,Replicated,Blocked

Watchupga East 2005

Sow date 25 June 2005
Harvest date Not specified
Plot size 6m x 50m
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
Watchupga East, VIC Not specified
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Watchupga East, VIC Calcarosol
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 Watchupga East VIC
2005 592.9mm
2004 536.9mm
2003 542.5mm
2002 501.5mm
2001 552.0mm
2000 524.7mm
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.

Watchupga East VIC

CAUTION: Trial site locality unknown; Climate data sourced from Birchip Cropping Group office location

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.