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Deep ripping and deep placement of lime

2005
CC BY 4.0

Research organisation
Liebe Group

Trial details

Researcher(s) Ben Parkin (Liebe Group)
Year(s) 2005
Contributor Liebe Group
Trial location(s) Kalannie, 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 N/A
Host research organisation N/A
Related program N/A
Acknowledgments

Liebe Group acknowledge GRDC for funding the project and the assistance of the Department of WA, especially the efforts of Chris Gazey and Dave Gartner. Thanks also to Brian and Rowan McCreery 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): Wheat
Treatment type(s)
  • Engineering : Tillage
  • Soil Improvement
Trial type Experimental
Trial design Replicated

Kalannie 2005

Sow date 23 May 2005
Harvest date Not specified
Plot size 41m x 3m
Plot replication 3
Fertiliser

70 kg/ha DAPSCZ, 50 kg/ha Urea, 25 kg/ha MOP
Herbicide

1 L/ha Roundup Powermax, 500 mL/ha MCPA LVE + 7g Logran
Download the trial report to view additional method/treatment information

Download results

Trial results Table 1

@T1: Athesis
# Treatment 1
Treatment 2
Gross margin ($/ha) Hectolitre weight (kg/hL) Protein (%) Screenings (%) Grain yield (t/ha) Biomass (t/ha)
1 █ Not deep ripped █ no lime -10 75.2 11.7 9.64 1.21 4.76
1 █ Deep ripped █ Lime injected 2.5 t/ha -11 73.17 12.6 7.34 1.75 5.7
2 █ Deep ripped to 30cm █ no lime 28 74.42 11.4 8.92 1.74 6.58
2 █ Not deep ripped █ Lime spread 2.5 t/ha -53 76.71 11.5 7.28 1.22 4.28
3 █ Deep ripped to 30cm █ Lime spread 2.5 t/ha -12 78.44 11.6 8.2 1.8 6.16
3 █ █
4 █ █
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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
Kalannie, WA 0 - 10cm Acidic Sand
Kalannie, WA 10 - 30cm Acidic Sand
Soil conditions
Trial site Soil texture
Kalannie, WA Acidic sand
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Kalannie, 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 Kalannie WA
2005
2004
2003
2002
2001
2000

Climate

Kalannie WA 2005

Observed climate information

Rainfall trial gsr (mm) 207mm

Derived climate information

Kalannie 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

2005 trial report