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) West Maya, 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 the project and the assistance of the Department of Agriculture WA, especially the efforts of Chris Gazey and Dave Gartner.

Thanks also to Brian and Tracey McAlpine and thier employees 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)
  • Soil Improvement: Application Method
  • Soil Improvement: Type
Trial type Experimental
Trial design Replicated

West Maya 2005

Sow date 14 May 2005
Harvest date Not specified
Plot size 736m x 11m
Plot replication 2
Fertiliser

14th May 2005: 100 kg/ha K-Till Extra 13th June 2005: 60 L/ha Flexi N 25th July 2005: 40 L/ha Flexi N

Herbicide

34.7 g/ha Logran + 867 mL/ha SpraySeed + 1.2 L/ha Trifluralin (13/5). 474 mL/ha MCPA LVE + 4.7 g/ha Chlorsulfuron (13/6).

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 81.95 0.73 151 9.17 2.72 5.93
1 Deep ripped Lime injected 2.5 t/ha 81.98 0.67 132 9.1 3.16 7.5
2 Deep ripped no lime 82.29 0.66 191 9.3 3.23 7.4
2
3
3

Grain yield t/ha


Loading

Biomass t/ha


Loading

Gross margin $/ha


Loading

Hectolitre weight kg/hL


Loading

Protein %


Loading

Screenings %


Loading
Observed trial site soil information
Trial site soil testing
Site Depth Type pH EC P K N A OC CAT
West Maya, WA 0 - 10cm Sand over Gravel
West Maya, WA 10 - 30cm Sand over Gravel
Soil conditions
Trial site Soil texture
West Maya, WA Sand over gravel
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
West Maya, 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 West Maya WA
2005 168.1mm
2004 173.9mm
2003 190.2mm
2002 145.9mm
2001 154.8mm
2000 242.2mm
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

Loading

Climate

West Maya WA 2005


Observed climate information

Rainfall trial gsr (mm) 298.5mm

Derived climate information

West Maya WA

Loading
Loading
Loading

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