Herbicide efficacy in ryegrass control

CC BY 4.0

Research organisatons
Funding source

Trial details

Researcher(s) Blake Gontar (SARDI), Andrew Ware (SARDI)
Year(s) 2014
Contributor Lower Eyre Agricultural Development Association
Trial location(s) Kapinnie, SA
Herbicide efficacy in ryegrass control locations

To assess the efficacy of three herbicide types on stubble covered soil.

Key messages
  • No significant difference in ryegrass control was found between plots treated with any of the three pre-emergent herbicides tested.
  • Though not statistically significant, the trial demonstrated a trend of increased herbicide efficacy with increasing herbicide carrier volume.
Lead research organisation Grains Research and Development Corporation
Host research organisation N/A
Trial funding source GRDC LEA00002
Related program Maintaining profitable farming systems with retained stubble

Thankyou to the Moroney family for hosting the site

Other trial partners SARDI
Download the trial report to view additional trial information


Crop type Wheat
Treatment type(s)
  • Herbicide: Type
  • Herbicide: Application
Trial type Experimental
Trial design Replicated

Kapinnie 2014

Sow rate or Target density 180 plants/m2
Sow date 23 May 2014
Harvest date 28 November 2014
Plot size 28m x 48m
Plot replication 4

100kg/ha 18:20 P:N


Sakura, Boxer Gold, Trifluralin and Avadex


400mL/ha Impact

Download the trial report to view additional method/treatment information

Download results

Trial results Table 1

# Variety
Treatment 1
Treatment 2
Grain yield (t/ha)
1 Wyalkatchem Boxer Gold 50L/ha 3.05
2 Wyalkatchem Boxer Gold 75L/ha 2.53
3 Wyalkatchem Boxer Gold 100L/ha 3.49
4 Wyalkatchem Boxer Gold 150L/ha 3.42
5 Wyalkatchem Sakura 50L/ha 2.99
6 Wyalkatchem Sakura 75L/ha 3.46
7 Wyalkatchem Sakura 100L/ha 3.23
8 Wyalkatchem Sakura 150L/ha 3.24
9 Wyalkatchem Trifuralin + Avadex 50L/ha 2.81
10 Wyalkatchem Trifuralin + Avadex 75L/ha 3.35
11 Wyalkatchem Trifuralin + Avadex 100L/ha 3.41
12 Wyalkatchem Trifuralin + Avadex 150L/ha 3.38

Grain yield t/ha

Observed trial site soil information
Trial site soil testing
Not specified
Soil conditions
Trial site Soil texture
Kapinnie, SA Sand over clay
Derived trial site soil information
Australian Soil Classification Source
Trial site Soil order
Kapinnie, SA Tenosol
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



Kapinnie SA 2014

Observed climate information

Rainfall trial gsr (mm) 344.8mm

Derived climate information

Kapinnie SA


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 last modified: 22-05-2019 10:16am AEST