Deep ripping trial 2008 to 2010

2008 - 2010

Research organisatons

Trial details

Researcher(s) Trent Potter and Glenn Bailey
Year(s) 2008 - 2010
Contributor MacKillop Farm Management Group
Trial location(s) Cadgee, SA
Frances, VIC
Deep ripping trial 2008 to 2010 locations
Aims

To quantify the yield effects of deep ripping, gypsum applicaiton and a new cultivation implement known as a spader.

Key messages

The penetrometer measurements show that the nil treatment at both sites had a harder soil profile in the upper 20 cm at Hannafords (clay loam) and down to 35 cm at Jacobs. The reason the Nil treatment at the site of Hannafords shows lower resistance at depth is because this zone was waterlogged (water perched on the clay layer), showing that the ripping and spading have relieved some of the waterlogging. 

Lead research organisation Rural Solutions SA
Host research organisation MacKillop Farm Management Group
Related program N/A
Acknowledgments

Many thanks to the contributors to this project including Peter Hannaford for providing a trial site and a great deal of organisation, Lachie Jacob for providing a trial site and deep ripping the trial sites, Roger Groocock for Spading the trial sites. Plots were harvested by the New Variety Agronomy group of SARDI, based at Struan.


Other trial partners SARDI
Download the trial report to view additional trial information

Method

Crop type No crop specified
Treatment type(s)
  • Soil: Preparation
Trial type Experimental
Trial design Replicated

Cadgee 2008

Sow date Not specified
Harvest date Not specified
Plot size Not specified
Plot replication Not specified

Cadgee 2009

Sow date Not specified
Harvest date Not specified
Plot size Not specified
Plot replication Not specified

Cadgee 2010

Sow date Not specified
Harvest date Not specified
Plot size Not specified
Plot replication Not specified

Frances 2008

Sow date Not specified
Harvest date Not specified
Plot size Not specified
Plot replication Not specified

Frances 2009

Sow date Not specified
Harvest date Not specified
Plot size Not specified
Plot replication Not specified

Frances 2010

Sow date Not specified
Harvest date Not specified
Plot size Not specified
Plot replication Not specified
Download the trial report to view additional method/treatment information

Download results

Trial results Table 1

# Variety
Treatment 1
Treatment 2
Treatment 3
Grain yield (kg/ha)
1 Canola 2008 Nil 1837
2 Canola 2008 Deep ripped 1865
3 Canola 2008 Deep Ripped after Gypsum Gypsum 2.5 T/ha 1878
4 Canola 2008 Deep Ripped after Gypsum Gypsum 5 T/ha Spader 2032
5 Canola 2008 Deep Ripped before Gypsum Gypsum 2.5 T/ha 1961
6 Wheat 2009 Nil 2918
7 Wheat 2009 Deep ripped 3378
8 Wheat 2009 Deep Ripped after Gypsum Gypsum 2.5 T/ha 3631
9 Wheat 2009 Deep Ripped after Gypsum Gypsum 5 T/ha Spader 3540
10 Wheat 2009 Deep Ripped before Gypsum Gypsum 2.5 T/ha 3537
11 Barley 2010 Nil 2517
12 Barley 2010 Deep ripped 2483
13 Barley 2010 Deep Ripped after Gypsum Gypsum 2.5 T/ha 2372
14 Barley 2010 Deep Ripped after Gypsum Gypsum 5 T/ha Spader 3333
15 Barley 2010 Deep Ripped before Gypsum Gypsum 2.5 T/ha 3142

Grain yield kg/ha


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Observed trial site soil information
Trial site soil testing
Not specified
Soil conditions
Trial site Soil texture
Cadgee, SA Not specified
Frances, VIC Brown sandy loam over clay
Derived trial site soil information
Australian Soil Classification Source
Trial site Soil order
Cadgee, SA Anthroposol
Frances, VIC Sodosol
National soil grid Source
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

Frances VIC 2008


Observed climate information

Rainfall trial gsr (mm) 398mm

Derived climate information

Cadgee VIC

Frances VIC

Cadgee VIC

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

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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




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Trial last modified: 06-08-2019 07:54am AEST