Demonstrating the effect of water quality on glyphosate efficacy


Research organisaton

Trial details

Researcher(s) N/A
Year(s) 2003
Contributor Birchip Cropping Group
Trial location(s) Site 3, Birchip, VIC
Demonstrating the effect of water quality on glyphosate efficacy locations

To investigate the effect of water quality on glyphosate efficacy when used in a spring-spraying knockdown scenario.

Key messages

The effect of water quality did have an effect on the efficacy of the chemicals applied. Glyphosate applied with very hard (1000ppm) water did not provide effective knockdown compared with treatments which used hard (340ppm) water or rain water. Interestingly, some of the rainwater + glyphosate treatments resulted in varying degrees of ‘brownout’ depending on the wetter or ameliorant with which it was mixed.

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 Vetch
Treatment type(s)
  • Herbicide: Application
  • Herbicide: Method
Trial type Experimental
Trial design Unknown

Birchip 2003

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
Site 3, Birchip, VIC Not specified
Derived trial site soil information
Australian Soil Classification Source
Trial site Soil order
Site 3, Birchip, VIC Vertosol
National soil grid Source
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.

Site 3, Birchip 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.

Individual Trial Project data and information and OFT metadata are licensed under a Creative Commons Attribution 4.0 International License.
The data and information accessed through OFT may also be subject to Terms of Use specified by the Trial Contributor,
in which case the Terms of Use of a Trial Contributor take precedence over other information provided on OFT.
Trial last modified: 21-11-2019 14:59pm AEST