Evaluation of spading vs deep ripping

2011
CC BY 4.0

Research organisaton
Funding source

Trial details

Researcher(s) Stephen Davies (DAFWA)
Nadine Hollamby (Liebe Group)
Year(s) 2011
Contributor Liebe Group
Trial location(s) East Coorow, WA
Evaluation of spading vs deep ripping locations
Aims
  • To determine if using a rotary spader on a ‘good’ sandy loam with minimal repellence and good pH profile can damage soil.
  • To compare the impacts of spading and deep ripping.
Key messages
Not specified
Lead research organisation N/A
Host research organisation N/A
Trial funding source GRDC CSA00016,DAW00204,LIE00006
Related program N/A
Acknowledgments

Stephen Davies involvement is supported by the ‘Delivering Agronomic Strategies for Water Repellent Soils’ DAW00204 and ‘Putting PA on the ground in WA’ CSA00016 GRDC projects. Thank to Michael O’Callaghan for providing the spader and Catalina Farms for conducting the deep ripping. The Liebe Group’s involvement is funded by GRDC through LIE00006 ‘Improved stubble and soil management practices for sustainable farming systems in the Liebe area’.


Other trial partners Not specified
Download the trial report to view additional trial information

Method

Crop type Cereal (Grain): Wheat
Treatment type(s)
  • Soil Preparation: Tillage
  • Soil Improvement: Type
Trial type Experimental
Trial design Replicated

East Coorow 2011

Sow rate or Target density 60 kg/ha
Sow date 17 May 2011
Harvest date Unknown
Plot size 100m x 16m
Plot replication 2
Fertiliser

17/5/11: 50 kg/ha DAPSZC, 17/6/11: 100 kg/ha Urea, 4/8/11: 35 L/ha MAXamFLO

Herbicide

17/6/11: 1 L/ha Sprayseed, 1.6 L/ha Trifluralin, 35 g/ha Trisulfuran, 6/7/11: 350 mL/ha Paragon, 350 mL/ha Bromoxynil

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Download results

Trial results Table 1

# Treatment 1
Protein (%) Grain yield (t/ha) Establishment plants (plants/m2) Screenings (%)
1 Deep ripped 9.4 4.8 114 6.9
2 minimum tillage 10 4.6 67 2.9
3 Spaded 9.8 4.9 141.5 5.1

Grain yield t/ha


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Establishment plants plants/m2


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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
East Coorow, WA 0 - 10cm Sandy loam 6.00
East Coorow, WA 10 - 30cm Sandy loam 5.00
Soil conditions
Trial site Soil texture
East Coorow, WA Sandy loam
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
East Coorow, WA Hydrosol
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 East Coorow WA
2011 135.8mm
2010 110.9mm
2009 126.1mm
2008 167.2mm
2007 137.5mm
2006 121.0mm
2005 99.3mm
2004 109.5mm
2003 126.9mm
2002 74.6mm
2001 84.2mm
2000 169.5mm
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

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Climate

East Coorow WA 2011


Observed climate information

Rainfall trial gsr (mm) 329mm

Derived climate information

East Coorow 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

2011 trial report



Trial last modified: 18-01-2023 14:58pm AEST