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Grain yield increases from overcoming subsoil compaction and acidity

2008
CC BY 4.0

Research organisation
Funding source
Liebe Group
<abbr title='Grains Research and Development Corporation'>GRDC</abbr>

Trial details

Researcher(s) Stephen Davies (DAFWA)
David Gartner (DAFWA)
Chris Gazey (DAFWA)
Year(s) 2008
Contributor Liebe Group
Trial location(s) Maya, WA
Grain yield increases from overcoming subsoil compaction and acidity locations
Aims
  • To assess the effectiveness of surface and deep placed lime to overcome subsoil acidity.
  • To assess role of deep ripping in overcoming compaction and tramline farming to prevent compaction.
Key messages

Significant responses have been shown at other sites with suface lime treatments and deep ripping to 30cm, so using test strips to test responsiveness of a soil to these more treatments is a good option.

Lead research organisation N/A
Host research organisation N/A
Trial funding source GRDC DAW00014
Related program N/A
Acknowledgments

Thanks to Brian and Tracy McAlpine for hosting the trial; Adam Clune, Trevor Bell and Larry Prosser (DAFWA) for technical support and the Liebe Group for ongoing support.
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

Maya 2008

Sow date 28 May 2008
Harvest date Not specified
Plot size 60m x 1.8m
Plot replication 4
Fertiliser

28/05/08: 70 kg/ha Agflow, Post emergent: 50 L/ha Flexi-N
Herbicide

Pre-seeding: 35 g/ha Logran; 1.5 L/ha Treflan, Post-emergent: 300 mL/ha Tigrex + 300 mL/ha MCPA
Download the trial report to view additional method/treatment information

Download results

Trial results Table 1

# Treatment 1
Gross margin ($/ha) Hectolitre weight (kg/hL) Protein (%) Screenings (%) Grain yield (t/ha)
1 █ 2.5 t/ha deep lime to 30cm 560 80 11.6 2.8 2.73
2 █ 2.5 t/ha surface lime 343 77 11.6 3.7 1.85
3 █ 2.5 t/ha surface lime then ripped to 30cm 465 79 11.5 3.1 2.35
4 █ 5 t/ha deep lime to 50cm 675 82 10.7 1.6 3.34
5 █ Control 516 81 10.9 2.4 2.46
6 █ Deep ripped to 30cm 541 80 11.5 2.5 2.58
7 █ Deep ripped to 50cm 575 80 10.9 2.4 2.77

Grain yield 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
Maya, WA 0 - 10cm Acidic Sand
Maya, WA 10 - 30cm Acidic Sand
Soil conditions
Trial site Soil texture
Maya, WA Acidic sand
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
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 Maya WA
2008
2007
2006
2005
2004
2003
2002
2001
2000

Climate

Maya WA 2008

Observed climate information

Rainfall trial gsr (mm) 210mm

Derived climate information

Maya 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

2008 trial report