Assessing the yield response to deep ripping in the northern Albany Port Zone, Western Australia. 2018 Harvest Update

2018, 2022
CC BY 4.0

Research organisaton
Funding sources

Trial details

Researcher(s) N/A
Contact email joel@mapiq.com.au
Contact phone 0429917743
Year(s) 2018, 2022
Contributor agVivo
Trial location(s) Hyden, WA
Assessing the yield response to deep ripping in the northern Albany Port Zone, Western Australia. 2018 Harvest Update locations
Aims

To assess the impact of deep ripping on crop yield over a two year period in the To assess the impact of deep ripping on crop yield over a two year period in the eastern wheatbelt

Key messages
  1. Removing subsurface soil compaction can provide benefits over many years.
  2. Deep ripping provides the opportunity to address other soil constraints such as sub surface acidity
Lead research organisation N/A
Host research organisation N/A
Trial funding source GRDC AVP00003-A
Trial funding source NLP 4-3HOOIWT
Related program N/A
Acknowledgments

The research undertaken was made possible by the significant contributions of the Cusack family who setup the demonstration sites. This assessment of the trial and report is an investment by the GRDC.


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

Method

Crop type Cereal (Grain): Wheat
Treatment type(s)
  • Soil Properties: Compaction
  • Soil Improvement: Rate
  • Soil Improvement: Type
Trial type Experimental
Trial design Blocked

Hyden 2018

Sowing machinery

18m DBS

Sow date Peas: June 2016; Canola: May 2017; Wheat: May 2018
Harvest date Unknown
Plot size 18m x 150m
Plot replication 4
Soil amelioration

Deep Ripping

Deep Ripping + Spading

Offset Discs

Hyden 2022

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

Download results

Trial results Table 1: Cost of Treatment

# Treatment 1
Cost ($/ha)
1 Control 0
2 3 t/ha lime 188.6
3 3 t/ha lime + disc 199.6
4 3 t/ha lime + rip 227.1
5 3 t/ha lime + rip + spade 302.2
6 6 t/ha lime 377.1
7 6 t/ha lime + disc 388.1
8 6 t/ha lime + rip 415.6
9 6 t/ha lime + rip + spade 490.8
10 Disc only 11
11 Rip only 38.5
12 Rip + Spade only 113.7

Cost $/ha


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Trial results Table 2: Soil Compaction

# Treatment 1
Depth (cm) Soil strength (kPa)
1 Control 0 0
2 Control 10 3600
3 Control 20 5000
4 Control 30 4600
5 Control 40 3000
6 Control 50 2500
7 Deep Rip 0 0
8 Deep Rip 10 500
9 Deep Rip 20 600
10 Deep Rip 30 550
11 Deep Rip 40 600
12 Deep Rip 50 800

Soil strength kPa


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Trial results Table 3: Soil pH

# Treatment 1
Depth (cm) pH CaCl2 (pH)
1 Control 0 6.5
2 Control 10 5
3 Control 20 4.5
4 Control 30 4
5 Control 40 4
6 Control 50 4
7 Deep Rip 0 6.4
8 Deep Rip 10 5.5
9 Deep Rip 20 5
10 Deep Rip 30 4.4
11 Deep Rip 40 4
12 Deep Rip 50 4
13 Deep Rip + Spade + 6t Lime 0 5.6
14 Deep Rip + Spade + 6t Lime 10 5.4
15 Deep Rip + Spade + 6t Lime 20 5
16 Deep Rip + Spade + 6t Lime 30 4.8
17 Deep Rip + Spade + 6t Lime 40 4.6
18 Deep Rip + Spade + 6t Lime 50 4.4

pH CaCl2 pH


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Trial results Table 4: Average treatment yield for 2017 canola.

# Treatment 1
Grain yield (t/ha)
1 Control 0.45
2 3 t/ha lime 0.5
3 3 t/ha lime + disc 0.65
4 3 t/ha lime + rip 1.1
5 3 t/ha lime + rip + spade 0.1
6 6 t/ha lime 0.5
7 6 t/ha lime + disc 0.65
8 6 t/ha lime + rip 1.2
9 6 t/ha lime + rip + spade 0.15
10 Disc only 0.65
11 Rip only 1
12 Rip + Spade only 0.15

Grain yield t/ha


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Trial results Table 5: Average treatment yield for 2018 wheat.

# Treatment 1
Grain yield (t/ha)
1 Control 3.08
2 3 t/ha lime 2.89
3 3 t/ha lime + disc 3.02
4 3 t/ha lime + rip 3.5
5 3 t/ha lime + rip + spade 3.54
6 6 t/ha lime 3.02
7 6 t/ha lime + disc 2.91
8 6 t/ha lime + rip 4.04
9 6 t/ha lime + rip + spade 3.35
10 Disc only 3.03
11 Rip only 3.91
12 Rip + Spade only 3.75

Grain yield t/ha


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Trial results Table 6

# Treatment 1
Net 2-year benefit ($/ha) Net 1-year benefit ($/ha) Return on investment compared to control ($/ha) Treatment Cost ($/ha)
1 Control 0 0 0 0
2 3 t/ha lime -92 25 -256 188.6
3 3 t/ha lime + disc -29 100 -129 199.6
4 3 t/ha lime + rip 212 325 310 227.1
5 3 t/ha lime + rip + spade 232 -175 -245 302.2
6 6 t/ha lime -30 25 -382 377.1
7 6 t/ha lime + disc -82 100 -370 388.1
8 6 t/ha lime + rip 483 375 442 415.6
9 6 t/ha lime + rip + spade 136 -150 -505 490.8
10 Disc only -25 100 64 11
11 Rip only 418 275 655 38.5
12 Rip + Spade only 337 -150 73 113.7

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
Hyden, WA Not specified
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Hyden, WA Tenosol
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.

Hyden 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

2018 trial report



Trial last modified: 15-12-2022 10:14am AEST