Spray application technology

2002

Research organisaton

Trial details

Researcher(s) N/A
Year(s) 2002
Contributor Birchip Cropping Group
Trial location(s) Birchip, VIC
Rupanyup, VIC
Spray application technology locations
Aims

To investigate the effect of water rate and nozzle type on grass herbicide efficacy.

Key messages

This trial has demonstrated the impact poor nozzle selection and water rates can have on herbicide efficacy. Farmers generally only use one nozzle type for all post emergent herbicide applications and water rates tend to be lower than optimal. It was found that increasing the water rate and selecting a nozzle with a fine droplet pattern and good coverage gave best results for contact herbicides and those poorly translocated within the plant (Group A herbicides eg. Verdict 520). For herbicides that move readily through the plant, coverage is not as essential allowing larger droplet size nozzles to be used without losing efficacy. For smaller grass targets it is even more important to have the correct water rate and nozzle type. Understanding how herbicides work, modes of action and movement within the plant will allow for better water rate and nozzle selection leading to more cost effective weed control and less off target impact.

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

Method

Crop types Cereal (Grain): Barley Grain Legume: Lentils
Treatment type(s)
  • Herbicide: Application Method
Trial type Experimental
Trial design Randomised,Replicated,Blocked

Birchip 2002 Barley

Sow rate or Target density Not specified
Sow date Not specified
Harvest date Not specified
Plot size Not specified
Plot replication Not specified

Birchip 2002 Lentils

Sow rate or Target density Not specified
Sow date Not specified
Harvest date Not specified
Plot size Not specified
Plot replication Not specified

Rupanyup 2002 Barley

Sow rate or Target density Lentils at 40 kg/ha and over sown with Gairdner barley at 10kg/ha
Sow date Unknown
Harvest date Unknown
Plot size Not specified
Plot replication Not specified

Rupanyup 2002 Lentils

Sow rate or Target density Not specified
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
Birchip, VIC Not specified
Rupanyup, VIC Not specified
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Birchip, VIC Vertosol
Rupanyup, VIC Vertosol
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 Birchip VIC Rupanyup VIC
2002 240.1mm240.1mm
2001 285.1mm285.1mm
2000 290.6mm290.6mm
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

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Climate

Derived climate information

No observed climate data available for this trial.
Derived climate data is determined from trial site location and national weather sources.

Birchip VIC

Rupanyup VIC

Birchip VIC

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

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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

2002 trial report



Trial last modified: 02-02-2023 10:24am AEST