The control of summer weeds using larger spray droplets and more adverse weather conditions

2012
CC BY 4.0

Research organisaton
Funding source

Trial details

Researcher(s) Jeff Braun ( Mid North High Rainfall Zone)
Peter Cousins ( Mid North High Rainfall Zone)
Mick Faulkner (Hart)
Bill Gordon (Hart)
Peter Hooper (Hart)
Allan Mayfield ( Mid North High Rainfall Zone)
Roy Rogers (Hart)
Year(s) 2012
Contributor Hart Field Site Group
Trial location(s) , SA
, SA
The control of summer weeds using larger spray droplets and more adverse weather conditions locations
Aims

To measure the efficacy of coarser spray droplets on the control of two identified common summer weed species, and the influence of more adverse weather conditions.

Key messages
  • Trials conducted in 2012 have shown that larger droplets and variations in droplet application direction can successfully control summer weeds, compared to the traditionally favoured medium droplets.
  • This includes a variation of weed species, different herbicides types and application within conditions that are not generally conducive to summer spraying.
  • The work has shown that for contact herbicides like Spray.Seed extremely coarse droplets can give reduced control, regardless of water rate.
Lead research organisation Hart Field Site Group
Host research organisation Hart Field Site Group
Trial funding source GRDC
Related program N/A
Acknowledgments

Many thanks are extended to Nick Ashby, Allen Kelly and Andrew Hawker for the use of their land and cooperation with this trial work.

 


Other trial partners Mid North High Rainfall Zone group
Download the trial report to view additional trial information

Method

Crop type Cereal (Grain): Barley
Treatment type(s)
  • Herbicide: Application Method
Trial type
Trial design

2012

Sow date Not specified
Harvest date Not specified
Plot size 2.5m x 20m
Plot replication 4

2012

Sow date Not specified
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
, SA Calcarosol
, SA Not specified
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
, SA Chromosol
, SA Chromosol
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 SA SA
2012 437.1mm463.9mm
2011 454.1mm454.4mm
2010 437.9mm427.1mm
2009 446.1mm373.5mm
2008 415.4mm300.4mm
2007 420.0mm322.0mm
2006 398.9mm348.6mm
2005 433.2mm419.2mm
2004 403.0mm358.2mm
2003 408.3mm382.3mm
2002 380.1mm364.0mm
2001 423.0mm420.3mm
2000 374.5mm384.4mm
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

Loading

Climate

SA 2012


Observed climate information

Rainfall trial gsr (mm) 168mm

Derived climate information

SA

SA

SA

Loading
Loading
Loading

SA

Loading
Loading
Loading

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

2012 trial report



Trial last modified: 11-12-2019 07:59am AEST