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) Latham, 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 and subsurface acidity via deep banding lime to 30cm resulted in 18% yield increase over the untreated control.
  • Despite the gross margin of the deep banded lime treatment being $35/ha less than the control in 2005, the benefits of deep ripping and lime application will still be realised in future years.
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): Wheat
Treatment type(s)
  • Soil Improvement: Rate
  • Soil Improvement: Type
Trial type Experimental
Trial design Replicated

Latham 2005

Sow date 24 May 2005
Harvest date Not specified
Plot size 47.5m x 3m
Plot replication 3
Fertiliser

70 kg/ha MAPSCZ, 80 kg/ha Urea

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 82.89 6.47 50 12.5 1.51 4.11
1 Deep ripped x2 Lime injected 2.5 t/ha x2 83.2 4.96 -28 12.6 1.82 5.15
2 Deep ripped Lime injected 2.5 t/ha 82.81 6.46 15 12.57 1.78 4.72
2 Deep ripped no lime 83.58 5.87 28 12.37 1.55 5.02
3 Deep ripped x2 no lime 82.82 5.1 38 12.6 1.61 5.86
3 Not deep ripped Lime spread 2.5 t/ha 82.71 7.48 -13 12.33 1.48 3.85
4 Deep ripped Lime spread 2.5 t/ha 82.92 6.95 -12 12.2 1.65 4.46
4
5
5
6
6
7
7

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
Latham, WA 0 - 10cm Acidic Sand
Latham, WA 10 - 30cm Acidic Sand
Soil conditions
Trial site Soil texture
Latham, WA Acidic sand
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Latham, WA Tenosol
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 Latham WA
2005 288.2mm
2004 270.1mm
2003 266.9mm
2002 237.6mm
2001 270.5mm
2000 341.5mm
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

Latham WA 2005


Observed climate information

Rainfall trial gsr (mm) 272mm

Derived climate information

Latham WA

NOTE: Exact trial site locality unknown - Climate data may not be accurate
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