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Trifluralin is king, long live the king

2003
CC BY 4.0

Research organisations
Funding source
Liebe Group Department of Agriculture and Food WA
<abbr title='Grains Research and Development Corporation'>GRDC</abbr>

Trial details

Researcher(s) Glenn Adam (Department of Agriculture)
Peter Newman (Department of Agriculture)
Year(s) 2003
Contributor Liebe Group
Trial location(s) East Marchagee, WA
Trifluralin is king, long live the king locations
Aims

To evaluate the efficacy of some of the common pre-emergent herbicide mixtures for ryegrass control in wheat.

Key messages

Trifluralin appears to be the best pre-emergent ryegrass herbicide for wheat.

Lead research organisation Department of Agriculture and Food WA
Host research organisation N/A
Trial funding source GRDC
Related program N/A
Acknowledgments

Thanks to farmers Ian and Clinton Hunt.
Other trial partners Not specified
Download the trial report to view additional trial information

Method

Crop type Cereal (Grain): Wheat
Treatment type(s)
  • Herbicide : Rate
  • Herbicide : Type
Trial type Experimental
Trial design Replicated

East Marchagee 2003

Sow date 14 May 2003
Harvest date Not specified
Plot size 30m x 3m
Plot replication 3
Herbicide

14th May 2003: Knockdown: Spray.Seed 2 L/ha @ 90 L water /ha 14th May 2003: Treatments applied with 90 L water /ha in ideal spraying conditions. Light wind from NE, approx. 22 degrees C. Clear blue skies. Herbicides used: Trifluralin 480 g/L, Yield 250 EC (Oryzalin 125 g/L + trifluralin 125 g/L), Dual Gold® (S-Metolachlor 960 g/L), Logran (Triasulfuron 750 g/Kg), Diuron 900 g/Kg, Avadex Xtra (Triallate 500 g/L)
Download the trial report to view additional method/treatment information

Download results

Trial results Table 1

# Treatment 1
Ryegrass density (plants/m2) Grain yield (t/ha) Weed control grass (%)
1 █ Diuron 250 g/ha 405 1.29 9
2 █ Dual Gold 500 mL + Diuron 250 g/ha 286 1.28 36
3 █ Logran 35 g/ha 505 1.35 0
4 █ Nil 445 1.44 0
5 █ Nil 445 1.44 0
6 █ Product X 275 mL/ha 84 2.18 82
7 █ Trifluralin 1.2 L/ha (576 gai) 72 2.67 84
8 █ Trifluralin 1.2 L/ha + Avadex Xtra 500 mL/ha 73 2.68 84
9 █ Trifluralin 1.2 L/ha + Avadex Xtra 500 mL/ha + Dual Gold 250 mL/ha 98 1.92 78
10 █ Trifluralin 1.2 L/ha + Avadex Xtra 800 mL/ha 74 2.57 84
11 █ Trifluralin 1.6 L/ha (768 gai) 98 2.91 78
12 █ Trifluralin 1.6 L/ha + Diuron 250 g/ha 93 2.51 79
13 █ Trifluralin 1.6 L/ha + Diuron 400 g/ha 95 2.55 79
14 █ Trifluralin 1.6 L/ha + Logran 35 g/ha 66 2.66 85
15 █ Yield 250 SC 2.3 L/ha (575 gai) 58 2.78 87

Grain yield t/ha

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Ryegrass density plants/m2

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Weed control grass %

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Observed trial site soil information
Trial site soil testing
Site Depth Type pH EC P K N A OC CAT
East Marchagee, WA 0 - 10cm Sandy loam
East Marchagee, WA 10 - 30cm Sandy loam
Soil conditions
Trial site Soil texture
East Marchagee, WA Sandy loam
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
East Marchagee, WA 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 East Marchagee WA
2003
2002
2001
2000

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.

East Marchagee WA

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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

2003 trial report