Pre-emergent herbicide control of grasses in barley

2013
CC BY 4.0

Research organisaton

Trial details

Researcher(s) Clare Johnston (Liebe Group)
Year(s) 2013
Contributor Liebe Group
Trial location(s) Wongan Hills, WA
Pre-emergent herbicide control of grasses in barley locations
Aims

To compare the efficacy and crop safety of different herbicide options for control of grasses in barley.

Key messages
  • Seasonal conditions reduced the potential impacts of the pre-emergent herbicides evaluated in this trial with sowing taking place under dry conditions. The top 5 cm was dry with little follow up moisture although there was enough to get the crop out of the ground. The effects of pre-emergent herbicides are generally more pronounced under very moist conditions particularly under intense heavy rain events at seeding or when the top soil is saturated for an extended period at plant establishment.
  • In this trial neither yield or weed density were significantly different between the herbicide treatments.
  • Weed plant densities were extremely variable within each treatment so caution should be taken when comparing grass weed efficacy in this trial.
Lead research organisation Liebe Group
Host research organisation N/A
Related program N/A
Acknowledgments

Acknowledgements Thanks to Bruce and the staff at the Wongan Hills Research Station for sowing and maintain the trial.


Other trial partners Not specified
Download the trial report to view additional trial information

Method

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

Wongan Hills 2013

Sow rate or Target density 75kg/ha
Sow date 30 May 2013
Harvest date Not specified
Plot size 25m x 10m
Plot replication 4
Paddock history 2010: wheat, 2011: wheat, 2012: wheat
Fertiliser

30/05/13: 80 kg/ha Macropro Plus

Herbicide

30/01/13: 2 L/ha Roundup, 600 mL/ha Ester, 0.5% Li700

11/04/13: 1.5 L/ha Roundup, 600 mL/ha Ester, 0.5% Li700

30/05/13: As per treatments below 

28/06/13: 2 L/ha Spray.Seed, 670 mL/ha Velocity, 1% Hasten

Download the trial report to view additional method/treatment information

Download results

Trial results Table 1

# Treatment 1
Hectolitre weight (kg/hL) Screenings (%) Weeds (plants/m2) Protein (%) Grain yield (t/ha)
1 Boxer Gold 69.4 12.68 4.13 10.05 2.38
2 Sakura 67.9 16.65 11.48 10.83 2.71
3 Treflan 68.81 15.53 7.81 10.28 2.77
4 Treflan + Avadex 68.26 15.09 1.38 10.03 2.55
5 Treflan + Metribuzin 69.03 15.81 4.13 10.1 2.59

Grain yield t/ha


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Hectolitre weight kg/hL


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Protein %


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Screenings %


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Weeds plants/m2


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Observed trial site soil information
Trial site soil testing
Site Depth Type pH EC P K N A OC CAT
Wongan Hills, WA 0 - 10cm Sand 7.20 0.05
Wongan Hills, WA 10 - 30cm Sand 4.70 0.03
Soil conditions
Trial site Soil texture
Wongan Hills, WA Sand
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Wongan Hills, WA Kandosol
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 Wongan Hills WA
2013 193.2mm
2012 191.1mm
2011 172.5mm
2010 146.8mm
2009 183.7mm
2008 202.7mm
2007 163.7mm
2006 176.1mm
2005 164.6mm
2004 182.2mm
2003 192.8mm
2002 134.6mm
2001 139.2mm
2000 207.0mm
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

Wongan Hills WA 2013


Observed climate information

Rainfall trial gsr (mm) 256mm

Derived climate information

Wongan Hills 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

2013 trial report