Craft Air Services, LLC
Professional Aerial Application Services
252-426-9676
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January 2010
It has been one rough wheat season so far!
 Acres are way down due to the wet fall
conditons, and the wheat has struggled with
cold and wet soil.  Aerial fertilization and
herbicide have begun.  Protect your profits
by protecting your wheat. Call today to
schedule your application.  
The table below shows the per acre cost of an 8% yield loss
due to wheel tracks in drilled soybeans in a $10-$14 market.  
Row Spacing
Yield with
no Tracks
Yield with
Tracks
Bu./Acre
Loss
%Bu/Acre
Loss
7.5"
70.2
64.6
5.6
8%
15"
70.5
66.0
4.5
6.4%
30"
65.6
64.1
1.5
2.3%
This table shows the same information for 30" rows and a
2.3% yield reduction
2.3% loss
30" rows
$10.00
$11.00
$12.00
$13.00
$14.00
35 bu/Acre
$8.05
$8.86
$9.66
$10.47
$11.27
40 bu/Acre
$9.20
$10.12
$11.04
$11.96
$12.88
45 bu/Acre
$10.35
$11.39
$12.42
$13.46
$14.49
50 bu/Acre
$11.50
$12.65
$13.80
$14.95
$16.10
55 bu/Acre
$12.70
$13.92
$15.18
$16.45
$17.71
Counter
8% loss
7.5" rows
$10.00
$11.00
$12.00
$13.00
$14.00
35 bu./Acre
$28.00
$30.80
$33.60
$36.40
$39.20
40 bu/Acre
$32.00
$35.20
$38.40
$41.60
$44.80
45 bu/Acre
$36.00
$39.60
$43.20
$46.80
$50.40
50 bu/Acre
$40.00
$44.00
$48.00
$52.00
$56.00
55 bu/Acre
$44.00
$48.40
$52.80
$53.60
$61.60