Deep ripping and deep placement of lime

2005
CC BY 4.0

Research organisaton
Funding source

Trial details

Researcher(s) Ben Parkin (Liebe Group)
Year(s) 2005
Contributor Liebe Group
Trial location(s) Perenjori, WA
Deep ripping and deep placement of lime locations
Aims

To improve grain production by ameliorating subsurface compaction and subsurface acidity.

Key messages
  • Removal of soil compaction via deep ripping to 30cm resulted in  44% yield increase which equated to a gross margin of $38/ha more than the untreated control
  • Addition of lime did not significantly improve yield in 2006, however, it is possible that a response will be gained in future years as subsurface acidity is present in the soil profile.
Lead research organisation Liebe Group
Host research organisation N/A
Trial funding source GRDC LIE00003
Related program N/A
Acknowledgments

Liebe Group would like to acknowledge GRDC for funding this project and the assistance of the Department of Agriculture WA, especially the efforts of Chris Gazey and Dave Gartner.

Thanks also to Peter and Colin Bryant for hosting the trial site and assistance with implementing the trial.

  • Paper reviewed by Chris Gazey.

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

Method

Crop type Cereal (Grain): Barley
Treatment type(s)
  • Soil Improvement: Application Method
  • Soil Improvement: Rate
  • Soil Improvement: Type
Trial type Experimental
Trial design Replicated

Perenjori 2005

Sow rate or Target density 70 kg/ha Stirling Barley
Sow date 2 May 2005
Harvest date Unknown
Plot size 60m x 3m
Plot replication 3
Fertiliser

70 kg/ha Multiyield, 100 kg/ha Gransulam

Herbicide

1.2 L/ha Roundup Powermax, 1.8 L/ha Trifluralin, 800 mL/ha MCPA LVE

Download the trial report to view additional method/treatment information

Download results

Trial results Table 1

@T1: Athesis
# Treatment 1
Treatment 2
Hectolitre weight (kg/hL) Screenings (%) Gross margin ($/ha) Protein (%) Grain yield (t/ha) Biomass (t/ha)
1 Not deep ripped no lime 64.69 2.64 177 10.42 2.23 3.62
1 Deep ripped x2 Lime injected 2.5 t/ha x2 61.52 3.13 74 10.82 2.5 4.11
2 Deep ripped Lime injected 2.5 t/ha 66.92 3.13 151 11.22 2.58 3.97
2 Deep ripped no lime 63.74 3.11 203 11.08 2.56 3.93
3 Deep ripped x2 no lime 63.14 3.72 177 11.07 2.46 3.74
3 Not deep ripped Lime spread 2.5 t/ha 62.1 2.97 117 10.9 2.19 3.63
4 Deep ripped Lime spread 2.5 t/ha 65.06 3.17 145 11.59 2.54 3.86
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Grain yield t/ha


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Biomass t/ha


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Gross margin $/ha


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Hectolitre weight kg/hL


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Protein %


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Screenings %


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Observed trial site soil information
Trial site soil testing
Site Depth Type pH EC P K N A OC CAT
Perenjori, WA 0 - 10cm Sandy loam
Perenjori, WA 10 - 30cm Sandy loam
Soil conditions
Trial site Soil texture
Perenjori, WA Sandy loam
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Perenjori, WA Kandosol
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 Perenjori WA
2005 311.9mm
2004 279.0mm
2003 290.2mm
2002 282.4mm
2001 329.4mm
2000 345.1mm
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

Perenjori WA 2005


Observed climate information

Rainfall trial gsr (mm) 258mm

Derived climate information

Perenjori WA

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 report and links

2005 trial report



Trial last modified: 23-01-2023 14:45pm AEST