Yield response in barley, canola and lupins to deep ripping over three seasons near Broomehill, Western Australia

2015 - 2018

Research organisaton
Funding source

Trial details

Researcher(s) Scott Thompson (Nardlah Grazing Co.) and Joel Andrew (Map IQ)
Year(s) 2015 - 2018
Contributor agVivo
Trial location(s) Site 3, Broomehill, WA
Yield response in barley, canola and lupins to deep ripping over three seasons near Broomehill, Western Australia locations
Aims

To assess the yield response in barley, canola and lupins to deep ripping over a three year period (2015 – 2017) near Broomehill, WA.

Key messages

Subsurface soil compaction has been shown to be a major constraint to crop production and the removal of
this compaction via deep ripping can lead to large yield increases.

Lead research organisation agVivo
Host research organisation N/A
Trial funding source GRDC AVP00003-A
Related program N/A
Acknowledgments

The research undertaken as part of this project is made possible by the significant contributions of Scott Thompson of Nardlah Grazing Co who initially set up the trial with support from Paul Blackwell of Department of Agriculture and Food, Western Australia and the GRDC. This assessment of the trial and report is funded by the GRDC through the Albany Region Cropping Solution Network.
GRDC Project Number: AVP00003-A


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

Method

Crop types Barley
Canola
Lupins
Treatment type(s)
  • Soil
  • Soil: Preparation
Trial type Experimental
Trial design Replicated

Broomehill 2015 Barley

Sow date Not specified
Harvest date Not specified
Plot size Not specified
Plot replication Not specified

Broomehill 2015 Canola

Sow date Not specified
Harvest date Not specified
Plot size Not specified
Plot replication Not specified

Broomehill 2015 Lupins

Sow date Not specified
Harvest date Not specified
Plot size Not specified
Plot replication Not specified

Broomehill 2016 Barley

Sow date Not specified
Harvest date Not specified
Plot size Not specified
Plot replication Not specified

Broomehill 2016 Canola

Sow date Not specified
Harvest date Not specified
Plot size Not specified
Plot replication Not specified

Broomehill 2016 Lupins

Sow date Not specified
Harvest date Not specified
Plot size Not specified
Plot replication Not specified

Broomehill 2017 Lupins

Sow date Not specified
Harvest date Not specified
Plot size Not specified
Plot replication Not specified

Broomehill 2017 Barley

Sow date Not specified
Harvest date Not specified
Plot size Not specified
Plot replication Not specified

Broomehill 2017 Canola

Sow date Not specified
Harvest date Not specified
Plot size Not specified
Plot replication Not specified

Broomehill 2018 Barley

Sow date Not specified
Harvest date Not specified
Plot size Not specified
Plot replication Not specified

Broomehill 2018 Canola

Sow date Not specified
Harvest date Not specified
Plot size Not specified
Plot replication Not specified

Broomehill 2018 Lupins

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

Download results

Trial results Table 1: Average crop yield for the rip and control plots

# Treatment 1
Treatment 2
Grain yield (t/ha)
1 2014 Ripping 2.3
2 2014 Control 2.35
3 2015 Ripping 3.1
4 2015 Control 3.27
5 2016 Ripping 1.93
6 2016 Control 2.27
7 2017 Ripping 2.45
8 2017 Control 2.52

Grain yield t/ha


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Trial results Table 3: Bulk density of each plot

# Treatment 1
50cm Bulk Density (g/cm3) 10cm Bulk Density ((g/cm3)) 30cm Bulk density (g/cm3) 20cm Bulk Density ((g/cm3))
1 Control 1.63 1.01 1.43 1.53
2 Rip 1.55 0.92 1.42 1.38
3 Control 1.55 0.96 1.32 1.37
4 Rip 1.26 0.95 1.29 1.28
5 Control 1.58 0.98 1.37 1.51

10cm Bulk Density (g/cm3)


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20cm Bulk Density (g/cm3)


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30cm Bulk density g/cm3


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50cm Bulk Density g/cm3


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Trial results Table 4: Economic benefit of ripping

# Treatment 1
Treatment Cost ($/ha) Net 2-year benefit ($/ha) Net 3-year benefit ($/ha) Net 1-year benefit ($/ha) Return on investment compared to control ($/ha)
1 Control 0 0 0 0 0
2 Ripping 40 155 23 39 177

Net 1-year benefit $/ha


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Net 2-year benefit $/ha


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Net 3-year benefit $/ha


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Return on investment compared to control $/ha


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Treatment Cost $/ha


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Observed trial site soil information
Trial site soil testing
Not specified
Soil conditions
Trial site Soil texture
Site 3, Broomehill, WA Not specified
Derived trial site soil information
Australian Soil Classification Source
Trial site Soil order
Site 3, Broomehill, WA Sodosol
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

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, Broomehill 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.




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Trial last modified: 30-07-2019 17:51pm AEST