Control of annual ryegrass with pre-emergence herbicides

2012
CC BY 4.0

Research organisaton
Funding source

Trial details

Researcher(s) Sam Kleemann, Peter Boutsalis, Chris Preston, Gurjeet Gill (UoA) and Peter Hooper (Hart)
Year(s) 2012
Contributor Hart Field Site Group
Trial location(s) Site 5, Hart, SA
Control of annual ryegrass with pre-emergence herbicides locations
Aims

To evaluate the efficacy and crop safety of alternate pre-emergent herbicides & their mixtures for the control of ryegrass in wheat.

Key messages
  • All pre-emergent herbicides provided excellent early control of ryegrass (≥86%) & good crop safety under the knife-point press wheel system.
  • Combination of trifluralin & Avadex Xtra followed by PSPE Boxer Gold provided greatest residual control, controlling more than 98% of ryegrass 12 weeks after sowing.
  • Boxer Gold applied PSPE has been shown to provide some additional in-row controlof ryegrass.
Lead research organisation Hart Field Site Group
Host research organisation Hart Field Site Group
Trial funding source GRDC
Related program N/A
Acknowledgments

This trial was funded by GRDC & conducted in collaboration between Birchip Cropping Group, The University of Adelaide and the Hart Field-Site Group.


Other trial partners BCG and The University of Adelaide
Download the trial report to view additional trial information

Method

Crop type Wheat
Treatment type(s)
  • Crop
  • Crop: Type
  • Herbicide
  • Herbicide: Type
  • Herbicide: Timing
Trial type Experimental
Trial design Randomised,Replicated,Blocked

Hart 2012

Sow date 30 May 2012
Harvest date Not specified
Plot size 1.75m x 12m
Plot replication Not specified
Fertiliser

DAP Zn 2% @ 70kg/ha 

Download the trial report to view additional method/treatment information

Download results

Trial results Table 1

@T1: @T2: @T3:
# Treatment 1
Plant density (plants/m2) Plant density (plants/m2) Head abundance (heads/m2)
1 Nil 174 254 254
1 Trifluralin 20 52 56
1 Avadex Xtra (AX) 7 37 35
2 Sakura (Sak) 25 31 6
2 Boxer Gold (BG) 8 33 19
2 Trif + AX IBS 9 26 17
3 Experimental 1 7 36 20
3 AX + BG IBS 8 21 7
3 AX + Sak IBS 8 10 5
4 Trif + AX IBS + DG PSPE 6 23 13
4 Trif + AX IBS + BG PSPE 2 4 7
4 BG IBS + BG PSPE 2 11 0
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Head abundance heads/m2


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Plant density plants/m2


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Observed trial site soil information
Trial site soil testing
Not specified
Soil conditions
Trial site Soil texture
Site 5, Hart, SA Calcarosol
Derived trial site soil information
Australian Soil Classification Source
Trial site Soil order
Site 5, Hart, SA Chromosol
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

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Climate

Site 5, Hart SA 2012


Observed climate information

Rainfall trial gsr (mm) 168mm

Derived climate information

Site 5, Hart SA

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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 last modified: 06-06-2019 10:28am AEST