Calculating the ROI for the use of a stripper front in the Mallee

2017

Research organisaton
Funding source

Trial details

Researcher(s) Simon Craig and Troy Thamm (Farm360 Pty Ltd), and Alistair Murdoch (Kooloonong, grower)
Year(s) 2017
Contributor Birchip Cropping Group
Trial location(s) Site 1, Kooloonong, VIC
Further information View external link
Calculating the ROI for the use of a stripper front in the Mallee locations
Aims

To determine the ROI from using a stripper front compared to a draper front.

Key messages
  • Capital value improvement of $61,000 by using the stripper front.
  • The cost per rotor hour of the machine increased as the capital cost went up and the number of hours decreased.
  • There was a 24% reduction in fuel usage and a 16% reduction in labour costs.
  • Harvest was completed on average two to three days faster with a stripper front.
Lead research organisation Birchip Cropping Group
Host research organisation N/A
Trial funding source GRDC BWD00024,BWD00024,BWD00024,BWD00024
Related program Maintaining profitable farming systems with retained stubble
Acknowledgments

This research was funded by the GRDC as part of the ‘Maintaining profitable farming systems in retained stubble’ project (BWD00024).


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

Method

Crop type Cereal: Wheat
Treatment type(s)
  • Stubble: Management
  • Stubble: Height
Trial type
Trial design
Sow rate or Target density Not specified
Sowing machinery Not specified
Plot size Not specified
Plot replication Not specified
Plot blocking Not specified
Plot randomisation Not specified
Paddock history Not specified
Fertiliser Not specified
Herbicide Not specified
Insecticide Not specified
Fungicide Not specified
Pesticide Not specified
Soil amelioration Not specified
Seed treatment Not specified
Inoculant Not specified
Tillage Not specified
Other trial notes Not specified
Download the trial report to view additional method/treatment information

Trial results Table 1

# Treatment 1
Total fuel use (litres) Net value/year (dollars) Machine hours (hours) Average machine hours per year (hours) Net value (dollars) Harvest days (days) Total labour (dollars)
1 Draper 80982 1877 268 125 65691
2 Stripper 61921 1578 225 105 55219
3 Difference 19062 299 43 20 10472
4 Value ($) 15250 12435 61322 87043 10472
5 Percentage 24 16 16 16 16

Trial results Table 1

# Treatment 1
Total revised stripper cost ($/ha) ($/ha) Total contractor cost ($/ha) ($/ha) Total draper cost ($/ha) ($/ha) Total stripper cost ($/ha) ($/ha) Total revised stripper cost ($/hr) ($/hr) Total contractor cost ($/hr) ($/hr) Total draper cost ($/hr) ($/hr) Total stripper cost ($/hr) ($/hr)
1 Barley low yield 26 37 29 29 407 488 389 449
2 Barley avg yield 28 46 32 30 397 492 347 438
3 Barley high yield 33 68 39 36 346 497 287 380
4 Wheat low yield 29 32 29 32 440 486 437 486
5 Wheat avg yield 30 41 31 33 431 489 367 475
6 Wheat high yield 31 56 33 34 367 494 292 403

Trial results Table 1

# Treatment 1
Total labour (dollars) Time (hours) hectares per hour (hectares) Labour ($/ha) Fuel (L/hr) Area (ha) Total fuel (dollars) Grain yield (t/ha) Speed (km/hr) Labour (hours) Tonnes (tonnes) Width of header front (feet) Tonnes per hour (tonnes) Labour ($/t) Fuel cost ($/hr) Fuel cost ($/ha) Cost ($/hr) Cost ($/ha)
1 Draper low yield 2800 80 15 2.3 45 1200 2880 0.8 12.5 35 960 12 12 2.9 36 2.4 437 29
2 Draper avg yield 3500 100 12 2.9 49 1200 3920 2.2 10 35 2640 12 26.4 1.3 39.2 3.3 367 31
3 Draper high yield 4800 137 8.75 4 55 1200 6034 3.5 7 35 4200 12 30.625 1.1 44 5 292 33
4 Stripper low yield 2800 80 15 2.3 40 1200 2560 0.8 12.5 35 960 12 12 2.9 32 2.1 486 32
5 Stripper avg yield 2897 83 14.5 2.4 44 1200 2913 2.2 11 35 2640 12 31.9 1.1 35.2 2.4 475 33
6 Stripper high yield 3559 102 11.8 3 48 1200 3905 3.5 9.8 35 4200 12 41.3 0.8 38.4 3.3 403 34
7 Contracting low yield 80 15 45 1200 2880 0.8 12.5 35 960 12 12 36 2.4 486 32
8 Contracting avg yield 100 12 49 1200 3920 2.2 10 35 2640 12 26.4 39.2 3.3 489.2 41
9 Contracting high yield 137 8.75 55 1200 6034 3.5 7 35 4200 12 30.625 44 5 494 56

Trial results Table 1

# Treatment 1
Total labour (dollars) Time (hours) hectares per hour (hectares) Labour ($/ha) Fuel (L/hr) Area (ha) Total fuel (dollars) Grain yield (t/ha) Speed (km/hr) Labour (hours) Tonnes (tonnes) Width of header front (feet) Tonnes per hour (tonnes) Labour ($/t) Fuel cost ($/hr) Fuel cost ($/ha) Cost ($/hr) Cost ($/ha)
1 Draper low yield 2652 76 13.2 2.7 48 1000 2909 1 11 35 1000 12 13.2 2.7 38.4 2.91 388.96 29.47
2 Draper avg yield 3241 93 10.8 3.2 52 1000 3852 2.4 9 35 2400 12 25.92 1.4 41.6 3.85 356.66 32.1
3 Draper high yield 4781 137 7.32 4.8 59 1000 6448 3.7 6.1 35 3700 12 27.1 1.3 47.2 6.45 287.15 39.23
4 Stripper low yield 2244 64 15.6 2.2 40.8 1000 2092 1 13 35 1000 12 15.6 2.2 32.64 2.09 449.63 28.82
5 Stripper avg yield 2431 69 14 2.4 44.2 1000 2456 2.4 12 35 2400 12 35 1 35.36 2.46 437.97 30.41
6 Stripper high yield 3314 95 11 3.3 50 1000 3788 3.7 8.8 35 3700 12 39 0.9 40 3.79 379.95 35.98
7 Contracting low yield 76 13 48 1000 2909 1 11 1000 12 13 38.4 2.91 488.4 37
8 Contracting avg yield 93 11 52 1000 3852 2.4 9 2400 12 26 41.6 3.85 491.6 46
9 Contracting high yield 137 7.32 59 1000 6448 3.7 6.1 3700 12 27 47.2 6.45 497.2 68

Average machine hours per year hours


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Harvest days days


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Machine hours hours


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Net value dollars


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Net value/year dollars


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Total fuel use litres


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Total labour dollars


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Observed trial site soil information
Trial site soil testing
Not specified
Soil conditions
Trial site Soil texture
Site 1, Kooloonong, VIC Not specified
Derived trial site soil information
Australian Soil Classification Source
Trial site Soil order
Site 1, Kooloonong, VIC Vertosol
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

Site 1, Kooloonong VIC 2017


Derived climate information
NOTE: Exact trial site locality unknown - Climate data may not be accurate
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BOM Data source BOUNDARY BEND [15569] 18km proximity to trial site location


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Site 1, Kooloonong VIC 2017


Derived climate information
NOTE: Exact trial site locality unknown - Climate data may not be accurate
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BOM Data source BOUNDARY BEND [15569] 18km proximity to trial site location


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Site 1, Kooloonong VIC 2017


Derived climate information
NOTE: Exact trial site locality unknown - Climate data may not be accurate
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BOM Data source BOUNDARY BEND [15569] 18km proximity to trial site location


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Site 1, Kooloonong VIC 2017


Derived climate information
NOTE: Exact trial site locality unknown - Climate data may not be accurate
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BOM Data source BOUNDARY BEND [15569] 18km proximity to trial site location


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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.