Investigating double break (or stacked rotation) options for weed and disease control

2016
CC BY 4.0

Research organisaton
Funding source

Trial details

Researcher(s) Chris Wilkins &, Nathan Craig West Midlands Group
Year(s) 2016
Contributor West Midlands Group
Trial location(s) Site 7, Merredin, WA
Related trials
Investigating double break (or stacked rotation) options for weed and disease control locations
Aims

To demonstrate the rotational benefits of a sequence of broadleaf, legume, and pasture crops for the production of wheat in the Kwinana West and East zones of WA. 
 

Key messages
  • The results presented in this report are from the first year of a three-year study that investigates the effect of break-crop sequences on wheat grain yield. The site was selected due to its high background levels of ryegrass control, and crop rotation treatments have been designed around weed control as the main rotational factor.
  • Grain yield was relatively low compared to the growing season rainfall of 253 mm. Grain yield was affected by severe frost that occurred during grain fill.
  • This project will continue with the second crop in rotation for the 2017 season, followed by wheat across all plots in 2018 to assess the benefit of a stacked rotation for subsequent wheat grain yield.
Lead research organisation West Midlands Group
Host research organisation West Midlands Group
Trial funding source GRDC WMG00003-A
Related program N/A
Acknowledgments N/A
Other trial partners GRDC
Download the trial report to view additional trial information

Method

Crop types Clover
Fallow
Lupins
Vetch
Wheat
Treatment type(s)
  • Crop: Rotation
Trial type
Trial design

Merredin 2016 Clover

Sow rate or Target density Not specified
Sowing machinery Not specified
Sow date Not specified
Harvest date Not specified
Plot size Not specified
Plot replication Not specified
Fertiliser Not specified
Seed treatment Not specified

Merredin 2016 Fallow

Sow rate or Target density Not specified
Sowing machinery Not specified
Sow date Not specified
Harvest date Not specified
Plot size Not specified
Plot replication Not specified
Fertiliser Not specified
Seed treatment Not specified

Merredin 2016 Lupins

Sow rate or Target density Not specified
Sowing machinery Not specified
Sow date Not specified
Harvest date Not specified
Plot size Not specified
Plot replication Not specified
Fertiliser Not specified
Seed treatment Not specified

Merredin 2016 Vetch

Sow rate or Target density Not specified
Sowing machinery Not specified
Sow date Not specified
Harvest date Not specified
Plot size Not specified
Plot replication Not specified
Fertiliser Not specified
Seed treatment Not specified

Merredin 2016 Wheat

Sow rate or Target density 100kg/ha
Sowing machinery

Knifepoint & presswheel 

Sow date 27 May 2016
Harvest date 18 November 2016
Plot size 2.88m x 12m
Plot replication 4
Fertiliser

Summit Gusto (10N:12P:14K:7.5S + 0.5CU +0.1Zn) @ 80 kg/ha

Seed treatment Raxil® Pro
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 7, Merredin, WA Sand to sandy loam
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Site 7, Merredin, 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 Site 7, Merredin WA
2016 320.5mm
2015 301.9mm
2014 283.4mm
2013 334.1mm
2012 309.2mm
2011 274.5mm
2010 250.3mm
2009 281.9mm
2008 272.0mm
2007 246.8mm
2006 306.6mm
2005 274.8mm
2004 292.2mm
2003 295.6mm
2002 238.8mm
2001 286.1mm
2000 311.7mm
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 7, Merredin 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

2016 trial report



Trial last modified: 06-08-2019 07:54am AEST