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Crop-topping cereals at Cummins

2009
CC BY 4.0

Research organisation
Funding sources
Eyre Peninsula Agricultural Research Foundation
<abbr title='Grains Research and Development Corporation'>GRDC</abbr> Caring for our Country

Trial details

Researcher(s) Michael Bennet (SARDI)
Ashley Flint (SARDI)
Brian Purdie (SARDI)
Year(s) 2009
Contributor Eyre Peninsula Agricultural Research Foundation
Trial location(s) Cummins,
Crop-topping cereals at Cummins locations
Aims

To investigate the impact of glyphosate as a crop-topping operation and the follow-on effects on grain yield and quality

Key messages
  • Crop-topping wheat with glyphosate can result in yield loss and grain size reduction if done too early.
  • Later crop-topping timings can produce grain quality and yield similar to untreated grain.
Lead research organisation Eyre Peninsula Agricultural Research Foundation
Host research organisation N/A
Trial funding source GRDC SA-EP-080906
Trial funding source Caring for our Country
Related program Eyre Peninsula Farming Systems
Acknowledgments
  • Thanks to Jeff Braun from Agrilink consultants for his help in trial design and treatment application; Brian Purdie and Ashley Flint for their efforts in applying the treatments, sowing and harvesting the trial, certainly a job well done; Martyn Chandler and the Landmark crew for help with spray timings; Brenton Spriggs for assessing the grain quality.
  • Thanks to LEADA, SANTFA and Caring for Our Country for supplying supplementary funding for the purposes of this trial.
Other trial partners SARDI
Download the trial report to view additional trial information

Method

Crop types Cereal (Grain): Barley Cereal (Grain): Wheat
Treatment type(s)
  • Crop : Type
  • Herbicide : Timing
Trial type Experimental
Trial design Randomised,Replicated

Cummins 2009 Barley

Sow rate or Target density Target 250 wheat and 200 barley plants/m2
Sowing machinery

small plot equipment
Sow date 22 May 2009
Harvest date Not specified
Plot size 10m x 1.5m
Plot replication 3
Fertiliser

The plots were sown with 100 kg/ha DAP, with 100 kg/ha urea broadcast on 9 July.
Herbicide

Roundup PowerMax was applied at 1.2 L/ha through Lechler IDK nozzles producing a medium/coarse droplet spectrum with a water rate of 100 L/ha.

Cummins 2009 Wheat

Sow rate or Target density Not specified
Sowing machinery Not specified
Sow date Not specified
Harvest date Not specified
Plot size Not specified
Plot replication Not specified
Fertiliser Not specified
Herbicide 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
Cummins, Red clay loam
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Cummins, Sodosol
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 Cummins
2009
2008
2007
2006
2005
2004
2003
2002
2001
2000

Climate

Cummins 2009

Observed climate information

Rainfall avg ann (mm) 422mm
Rainfall avg gsr (mm) 342mm
Rainfall trial total (mm) 450mm
Rainfall trial gsr (mm) 380mm

Derived climate information

Cummins

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Some data on this site is sourced from the Bureau of Meteorology

SILO weather estimates sourced from https://www.longpaddock.qld.gov.au/silo/
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 report and links

2009 trial report



Trial last modified: 06-08-2019 07:54am AEST