Worksheet 1: Calculations to measure the actual application rate
43,560 ft2/acre x ____ B (lbs) ÷ ___ C (ft) ÷ ___D (ft) =___A (lbs./acre)
10,000 m2/ha x ____ B (kg) ÷ ____C (m) ÷ ____ D (m) = ____ A (kg/ha)
A = application rate (lbs /acre or kg/ha)
B = weight of fertilizer (lbs or kg) collected from the spreader in 60 seconds
C = distance traveled (ft or m) in 60 seconds
D = swath spacing width (ft or m)
Worksheet 2: Calculations to determine fertilizer weight for desired application rate
_____ A (lbs. /acre) x _____ C (ft) x _____D (ft) ÷ 43,560 = B (lbs)
_____ A (kg/ha) x _____ C (m) x _____ D (m) ÷ 10,000 = B (kg)
A = application rate(desired amount lbs /acre or kg/ha)
B = weight of fertilizer (lbs or kg) collected from the spreader in 60 seconds
C = distance traveled (ft or m) in 60 seconds
D = swath spacing width (ft or m)
Next: Drill Type Spreader Calibration
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