Effect of sowing time x seed rate x herbicides on ryegrass management in barley (Roseworthy, SA)

2018
CC BY 4.0

Research organisaton
Funding source

Trial details

Researcher(s) Ben Fleet
Gurjeet Gill
Year(s) 2018
Contributor School of Agriculture, Food and Wine - The University of Adelaide
Trial location(s) Roseworthy campus, University of Adelaide, SA
Effect of sowing time x seed rate x herbicides on ryegrass management in barley (Roseworthy, SA) locations
Aims

To investigate the impact of integration of sowing time and seed rate of barley with pre-emergent herbicides on ryegrass density and seed production as well as on barley grain yield.

Key messages

Barley grain yield as significantly influenced by the time of sowing (P=0.025), seed rate (P<0.001) and the herbicide treatment (P<0.001). The delay of 4 weeks between the two sowing dates caused 22% (0.69 t/ha) reduction in grain yield or 25 kg/ha/day. Averaged over the two sowing dates and three seed rates, Boxer Gold treatment (2.996 t/ha) produced significantly greater barley grain yield than Treflan (2.634 t/ha) and the control (2.648 t/ha). Barley sown early (TOS 1) at high seed rate and sprayed with Boxer Gold produced 3.6 t/ha grain yield as compared to later sown crop (TOS 2) at low seed rate but treated with the same herbicide which produced 2.4 t/ha.

Lead research organisation School of Agriculture, Food and Wine - The University of Adelaide
Host research organisation School of Agriculture, Food and Wine - The University of Adelaide
Trial funding source GRDC 9175134
Related program GRDC Crop Protection - Weeds
Acknowledgments

GRDC for providing funds for this research project.


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

Method

Crop types Cereal (Grain): Barley Weed: Ryegrass
Treatment type(s)
  • Herbicide: Type
  • Sowing: Rate
  • Sowing: Timing
Trial type Experimental
Trial design Randomised,Replicated,Blocked

Roseworthy campus, University of Adelaide 2018 Barley

Sow date TOS 1: 21 May, 2018; TOS 2: 19 June, 2018
Harvest date Unknown
Plot size Not specified
Plot replication Not specified

Roseworthy campus, University of Adelaide 2018 Ryegrass

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
Roseworthy campus, University of Adelaide, SA Not specified
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Roseworthy campus, University of Adelaide, SA Chromosol
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 Roseworthy campus, University of Adelaide SA
2018 258.5mm
2017 341.1mm
2016 299.8mm
2015 264.9mm
2014 317.0mm
2013 284.7mm
2012 298.5mm
2011 342.9mm
2010 268.3mm
2009 215.9mm
2008 201.8mm
2007 245.4mm
2006 280.7mm
2005 295.1mm
2004 269.1mm
2003 262.7mm
2002 264.9mm
2001 301.9mm
2000 305.9mm
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

Derived climate information

No observed climate data available for this trial.
Derived climate data is determined from trial site location and national weather sources.

Roseworthy campus, University of Adelaide 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 report and links

2018 trial report



Trial last modified: 20-03-2023 12:06pm AEST