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

2018
CC BY 4.0

Research organisaton
Funding source

Trial details

Researcher(s) Gurjeet Gill and Ben Fleet
Year(s) 2018
Contributor School of Agriculture, Food and Wine - The University of Adelaide
Trial location(s) Site 3, Minnipa, SA
Effect of sowing time x seed rate x herbicides on ryegrass management in wheat (Minnipa, SA) locations
Aims

To investigate factorial combinations of sowing time, seed rate and herbicides on the management of annual ryegrass in wheat.

Key messages

Wheat grain yield at Minnipa was significantly influenced by the time of sowing (P=0.002), seed rate (P<0.001), herbicide treatment (P<0.001) and the interaction between the time of sowing and herbicide treatments (P<0.001). Averaged across the seed rates and herbicide treatments, wheat produced grain yield of 1.67 t/ha in TOS 1 as compared to 1.06 t/ha in TOS 2. There were large benefits of delayed sowing on weed control. However, these benefits came at a significant cost in wheat grain yield.

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

GRDC for research funding and the Bruce Heddle for hosting the trial on his farm.


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

Method

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

Minnipa 2018

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
Site 3, Minnipa, SA Not specified
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Site 3, Minnipa, SA Anthroposol
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 Site 3, Minnipa SA
2018 184.8mm
2017 210.6mm
2016 200.8mm
2015 170.2mm
2014 211.3mm
2013 156.1mm
2012 192.4mm
2011 219.4mm
2010 221.2mm
2009 243.7mm
2008 200.2mm
2007 183.1mm
2006 202.3mm
2005 177.2mm
2004 180.6mm
2003 176.4mm
2002 156.7mm
2001 205.0mm
2000 207.8mm
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.

Site 3, Minnipa SA

NOTE: Exact trial site locality unknown - Climate data may not be accurate
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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: 20-09-2019 16:30pm AEST