A. To determine this, first you need to estimate fuel consumption. If you routinely track fuel use for farming operations for your tractors and combines, you probably already have the information you need. Simply multiply your historical fuel use per acre by the prices per gallon shown in the tables below.
Most folks, however, don’t track fuel consumption by field operation and need a research-based estimate to compute the effect of a price increase on overall production costs. A good reference for fuel use estimates is the Minnesota Farm Machinery Economic Cost Estimates for 2008.
Table 1 presents the estimated fuel use per hour for power units, based on estimates in the Minnesota publication. Table 2 presents estimates of fuel consumption per acre for field operations.
Note: The fuel use per acre for field operations is independent of implement width. For example, consider two disks, one with a 20-foot width and the other with a 30-foot width. It would take 50% more power to pull the 30-foot disk (assuming the same travel speed, depth, etc.), but since the disk would be tilling 50% more acres per hour, the fuel use per acre would be the same for either scenario.
On-line Tools
Fuel consumption information in Tables 1 and 2 is taken from Minnesota Farm Machinery Economic Cost Estimates for 2008, by William Lazarus, Extension Economist, University of Minnesota. This publication is available online at http://www.apec.umn.edu/faculty/wlazarus/documents/mf2008.pdf
I have written an Excel worksheet based on the Minnesota fuel use estimates which shows the increases per hour for power units and the increases per acre for selected field operations each year since 2003. This worksheet is available at http://lancaster.unl.edu/ag/farm-mgt/FuelCostEstimator.xls
Tom Dorn
UNL Extension Educator, Lancaster County
| Table 1. Diesel fuel cost per hour for various power units | ||||||||||
Estimated |
Spring '03 |
Spring '04 |
Spring '05 |
Spring '06 |
Spring '07 |
Spring '08 |
||||
Fuel use |
Cost/hr |
Cost/hr |
Cost/hr |
Cost/hr |
Cost/hr |
Cost/hr |
||||
Diesel prices are for farm-delivered, off-road fuel |
||||||||||
Tractors |
Gal/hour |
$0.90 |
$1.30 |
$1.65 |
$2.25 |
$2.30 |
$3.20 |
|||
40 HP |
2WD |
1.8 |
$1.62 |
$2.34 |
$2.97 |
$4.05 |
$4.14 |
$5.76 |
||
60 HP |
2WD |
2.6 |
$2.34 |
$3.38 |
$4.29 |
$5.85 |
$5.98 |
$8.32 |
||
75 HP |
2WD |
3.3 |
$2.97 |
$4.29 |
$5.45 |
$7.43 |
$7.59 |
$10.56 |
||
105 HP |
2WD |
4.6 |
$4.14 |
$5.98 |
$7.59 |
$10.35 |
$10.58 |
$14.72 |
||
130 HP |
MFWD |
5.7 |
$5.13 |
$7.41 |
$9.41 |
$12.83 |
$13.11 |
$18.24 |
||
160 HP |
MFWD |
7.0 |
$6.30 |
$9.10 |
$11.55 |
$15.75 |
$16.10 |
$22.40 |
||
200 HP |
MFWD |
8.8 |
$7.92 |
$11.44 |
$14.52 |
$19.80 |
$20.24 |
$28.16 |
||
225 HP |
MFWD |
9.9 |
$8.91 |
$12.87 |
$16.34 |
$22.28 |
$22.77 |
$31.68 |
||
260 HP |
4WD |
11.4 |
$10.26 |
$14.82 |
$18.81 |
$25.65 |
$26.22 |
$36.48 |
||
310 HP |
4WD |
13.6 |
$12.24 |
$17.68 |
$22.44 |
$30.60 |
$31.28 |
$43.52 |
||
360 HP |
4WD |
15.8 |
$14.22 |
$20.54 |
$26.07 |
$35.55 |
$36.34 |
$50.56 |
||
425 HP |
4WD |
18.7 |
$16.83 |
$24.31 |
$30.86 |
$42.08 |
$43.01 |
$59.84 |
||
Combines |
||||||||||
190 HP |
8.4 |
$7.56 |
$10.92 |
$13.86 |
$18.90 |
$19.32 |
$26.88 |
|||
220 HP |
9.7 |
$8.73 |
$12.61 |
$16.01 |
$21.83 |
$22.31 |
$31.04 |
|||
275 HP |
12.1 |
$10.89 |
$15.73 |
$19.97 |
$27.23 |
$27.83 |
$38.72 |
|||
Table 2. Diesel fuel cost per acre for field operations |
||||||||
Spring '03 |
Spring '04 |
Spring '05 |
Spring '06 |
Spring '07 |
Spring '08 |
|||
Cost/hr |
Cost/hr |
Cost/hr |
Cost/hr |
Cost/acre |
Cost/acre |
|||
Diesel prices are for farm-delivered, off road fuel |
||||||||
Tillage |
Est. Diesel, gal/acre |
$0.90 |
$1.30 |
$1.65 |
$2.25 |
$2.30 |
$3.20 |
|
Field Cultivator |
0.33 |
$0.30 |
$0.43 |
$0.54 |
$0.74 |
$0.76 |
$1.06 |
|
Tandom Disk |
0.47 |
$0.42 |
$0.61 |
$0.78 |
$1.06 |
$1.08 |
$1.50 |
|
Tandom Disk (HD) |
0.76 |
$0.68 |
$0.99 |
$1.25 |
$1.71 |
$1.75 |
$2.43 |
|
Planting Equipment |
||||||||
Row Crop Planter |
0.34 |
$0.31 |
$0.44 |
$0.56 |
$0.77 |
$0.78 |
$1.09 |
|
Minimum Till Planter |
0.53 |
$0.48 |
$0.69 |
$0.87 |
$1.19 |
$1.22 |
$1.70 |
|
Grain Drill |
0.49 |
$0.44 |
$0.64 |
$0.81 |
$1.10 |
$1.13 |
$1.57 |
|
Presswheel Drill |
0.63 |
$0.57 |
$0.82 |
$1.04 |
$1.42 |
$1.45 |
$2.02 |
|
No-Till Drill |
0.81 |
$0.73 |
$1.05 |
$1.34 |
$1.82 |
$1.86 |
$2.59 |
|
Crop Maintenance Equipment |
||||||||
Cultivator |
0.46 |
$0.41 |
$0.60 |
$0.76 |
$1.04 |
$1.06 |
$1.47 |
|
Rotary Hoe |
0.18 |
$0.16 |
$0.23 |
$0.30 |
$0.41 |
$0.41 |
$0.58 |
|
Boom Sprayer |
0.11 |
$0.10 |
$0.14 |
$0.18 |
$0.25 |
$0.25 |
$0.35 |
|
Anhydrous Applicator |
0.55 |
$0.50 |
$0.72 |
$0.91 |
$1.24 |
$1.27 |
$1.76 |
|
Stalk Shreader |
0.74 |
$0.67 |
$0.96 |
$1.22 |
$1.67 |
$1.70 |
$2.37 |
|
Harvesting Equipment |
||||||||
Mower Conditioner |
0.40 |
$0.36 |
$0.52 |
$0.66 |
$0.90 |
$0.92 |
$1.28 |
|
Hay Swather |
0.35 |
$0.32 |
$0.46 |
$0.58 |
$0.79 |
$0.81 |
$1.12 |
|
Hay Baler PTO (twine) |
0.40 |
$0.36 |
$0.52 |
$0.66 |
$0.90 |
$0.92 |
$1.28 |
|
Round Baler (1500 lb) |
0.77 |
$0.69 |
$1.00 |
$1.27 |
$1.73 |
$1.77 |
$2.46 |
|
Combine (various heads) |
2.00 |
$1.80 |
$2.60 |
$3.30 |
$4.50 |
$4.60 |
$6.40 |
|
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