Deep ripping provides yield increases near Northam, Western Australia

2017 - 2018
CC BY 4.0

Research organisaton
Funding source

Trial details

Researcher(s) Joel Andrew (Map IQ)
Tim Boyes (agVivo)
Ty Fulwood (Mount Noddy Farming)
Year(s) 2017 - 2018
Contributor agVivo
Trial location(s) Northam, WA
Deep ripping provides yield increases near Northam, Western Australia locations
Aims

To assess the impact of deep ripping on wheat yield in a sand over gravel soil type near Northam, WA.

Key messages

Deep ripping provided a 446 kg/ha wheat yield increase in 2017.

Lead research organisation agVivo
Host research organisation N/A
Trial funding source GRDC AVP00003-A
Related program N/A
Acknowledgments

The research undertaken as part of this project is made possible by the significant contributions of Ty Fulwood and Tim Boyes who setup the trial. This assessment of the trial and report is funded by the GRDC through the Kwinana West Region Cropping Solution Network.

GRDC Project Number: AVP00003-A


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

Method

Crop type Cereal (Grain): Wheat
Treatment type(s)
  • Management systems: Soil engineering
  • Soil Preparation: Tillage
Trial type
Trial design

Northam 2017

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

Northam 2018

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

Download results

Trial results Table 1: 2017 Average crop yield for deep ripping and control plots

# Treatment 1
Grain yield (t/ha)
1 Control 4.85
2 Deep Rip 5.3

Grain yield t/ha


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Trial results Table 2: Average soil strength for rip and control plots

# Treatment 1
Soil strength (kPa) Soil loosening depth (cm)
1 Barrier 2500 -5
2 Barrier 2500 -10
3 Barrier 2500 -15
4 Barrier 2500 -20
5 Barrier 2500 -25
6 Barrier 2500 -30
7 Barrier 2500 -35
8 Barrier 2500 -40
9 Barrier 2500 -45
10 Barrier 2500 -50
11 Barrier 2500 -55
12 Barrier 2500 -60
13 Barrier 2500 -65
14 Barrier 2500 -70
15 Control 163 -5
16 Control 341 -10
17 Control 906 -15
18 Control 1786 -20
19 Control 1954 -25
20 Control 2078 -30
21 Control 2171 -35
22 Control 2216 -40
23 Control 2289 -45
24 Control 2569 -50
25 Control 2610 -55
26 Control 2635 -60
27 Control 2603 -65
28 Control 2612 -70
29 Deep Rip 375 -5
30 Deep Rip 709 -10
31 Deep Rip 922 -15
32 Deep Rip 827 -20
33 Deep Rip 710 -25
34 Deep Rip 1026 -30
35 Deep Rip 1089 -35
36 Deep Rip 1126 -40
37 Deep Rip 1090 -45
38 Deep Rip 1329 -50
39 Deep Rip 1944 -55
40 Deep Rip 2190 -60
41 Deep Rip 2167 -65
42 Deep Rip 2129 -70

Trial results Table 3: 2018 average crop yield

# Treatment 1
Grain yield (t/ha)
1 Control 3.46
2 Deep Ripping 3.8

Grain yield t/ha


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Trial results Table 4: The annual benefit for each treatment and cumulative return over the two years

# Treatment 1
Return on investment compared to control ($/ha) Treatment Cost ($/ha) Net 2-year benefit ($/ha) Net 1-year benefit ($/ha)
1 Control 0 0 0 0
2 Deep Ripping 198 60 102 156

Net 1-year benefit $/ha


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Net 2-year benefit $/ha


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Return on investment compared to control $/ha


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Treatment Cost $/ha


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Observed trial site soil information
Trial site soil testing
Not specified
Soil conditions
Trial site Soil texture
Northam, WA Not specified
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Northam, WA Chromosol
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 Northam WA
2018 296.3mm
2017 321.7mm
2016 299.5mm
2015 258.0mm
2014 277.9mm
2013 285.5mm
2012 266.7mm
2011 255.2mm
2010 241.7mm
2009 296.3mm
2008 311.3mm
2007 273.6mm
2006 278.9mm
2005 282.1mm
2004 276.4mm
2003 280.1mm
2002 227.3mm
2001 228.2mm
2000 300.7mm
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

Derived climate information

No observed climate data available for this trial.
Derived climate data is determined from trial site location and national weather sources.

Northam 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

Project Final Report

2017 trial report

2017 trial report



Trial last modified: 14-12-2022 15:08pm AEST