Precision Settings for Precision Fertilizing

The following chart contains orifice recommendations for 10, 20, 30, and 40 gallon work based on a 5 mile per hour ground speed and a 20 PSI system pressure.

Row Spacing (inches)
Orifice recommendations based on the following gallon/acre application rates
10 GPA
20 GPA
30 GPA
40 GPA
12"
34
48
59
68
18"
41
59
72
81
24"
48
68
81
95
30"
54
75
93
107
36"
59
81
103
115

USEFUL FORMULAS:

Gallons per minute
(Per Wheel)
=
Gallons per acre x MPH x Row Spacing
5,940

Gallons per Acre
=
5,940 x Gallons per minute (per wheel)
MPH x Row Spacing

CONVERSION FACTORS FOR CHECKING APPLICATION RATE:

Ounces per 100 feet = .0244 x Row Spacing x Gallons per acre

5 miles per hour = 14 seconds to travel 100 feet

SpikeWheel™ Calibration

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