Deep ripping provides yield increases near Northam, Western Australia

2017 - 2018

Research organisaton
Funding source

Trial details

Researcher(s) Ty Fulwood (Mount Noddy Farming) , Tim Boyes (agVivo) and Joel Andrew (Map IQ)
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 Wheat
Treatment type(s)
  • Soil
  • Soil: Preparation
Trial type
Trial design

Northam 2017

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

Northam 2018

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: 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


Loading

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

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

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


Loading

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

# 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 Deep Ripping 102 156 198 60

Net 1-year benefit $/ha


Loading

Net 2-year benefit $/ha


Loading

Return on investment compared to control $/ha


Loading

Treatment Cost $/ha


Loading
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
Trial site Soil order
Northam, WA Chromosol
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

Loading

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

Loading
Loading
Loading

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 last modified: 30-07-2019 18:15pm AEST