Summer weed control demonstration

CC BY 4.0

Research organisaton

Trial details

Researcher(s) Gavin Bignell (Liebe Group)
Year(s) 2003
Contributor Liebe Group
Trial location(s) East Maya, WA
Summer weed control demonstration locations

To assess the effectiveness of a range of summer weed control options. The subsequent effect on yield as a result of weed control.

Key messages
  • Weed counts were taken before and after treatments were applied and no significant difference in weed numbers was recorded.
  • This was only a demonstration, further studies are needed.
Lead research organisation Liebe Group
Host research organisation N/A
Related program N/A

Thanks to farmer Colin McGregor.

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


Crop type Wheat
Treatment type(s)
  • Herbicide: Type
  • Soil
Trial type Demonstration
Trial design Unreplicated

East Maya 2003

Sow date 26 May 2003
Harvest date Not specified
Plot size 200m x 12m
Plot replication Not specified

50 kg DAPS, 25 kg/urea with seed. 50 kg/ha Muriate of Potash on Sandy soil


24th February: Summer weeds sprayed 15th July: 500 mL MCPA LVE, 4 g Glean


5th September: 145 mL Folicur

Download the trial report to view additional method/treatment information

Download results

Trial results Table 1

# Treatment 1
Grain yield (t/ha) Gross margin ($/ha)
1 Ally 2.18 494
2 Control 2.2 506
3 Garlon 2.38 538
4 Plough 2.4 542

Grain yield t/ha


Gross margin $/ha

Observed trial site soil information
Trial site soil testing
Site Depth Type pH EC P K N A OC CAT
East Maya, WA 0 - 10cm Various
East Maya, WA 10 - 30cm Various
Soil conditions
Trial site Soil texture
East Maya, WA Various
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
East Maya, WA 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 East Maya WA
2003 196.9mm
2002 163.3mm
2001 187.9mm
2000 229.0mm
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.

East Maya 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.