Sprayer Calibration

Through laboratory demonstration and hands on experimentation, students acquire a practical knowledge of spreader/sprayer calibration.

Program: SPS


Students gain knowledge of proper sprayer calibration through demonstration in a lab setting. They utilize factors such as boom width, nozzle number, spray rate, and sprayer speed to determine the amount of product application. Spreader calibration is acquired through the development of a calibration curve for a drop spreader. Students determine the rate of the spreader at various settings.

Value of the Badge:

Earning the Sprayer Calibration badge indicates a student has demonstrated the ability to properly calibrate a sprayer and can determine volume spray rates applied per area based on the width of a sprayer boom, the spray rate (amount of liquid/over time), number of nozzles and speed of the sprayer. Further, a student is able to describe the relationships between sprayer speed and application rate, sprayer pressure and application rate and other factors that affect application rate. Development of the calibration curve gives the student hands on experience using a spreader, providing the basis for an understanding of and the ability to describe the relationship between setting number and actual application of product.

Badge Criteria:

  1. Successfully complete the Sprayer Calibration Lab Report assignment demonstrating knowledge of sprayer calibration, ability to determine spray rate per acre depending on the length of the sprayer boom, quantity of product released and number of nozzles, determine product:water mix rates using calibrated sprayer application rates and describe the relationship between sprayer speed, sprayer pressure and application rate.

  2. Successfully develop a calibration curve for a drop spreader, determining the application rate of the spreader at several different settings in Ohio State University’s HCS3470, Principles of Turfgrass Selection and Management.


  1. GOAL: Understand the fundamentals of management of horticulture and crop science enterprises.


  2. OUTCOME: Apply best practices for horticulture and crop enterprises.


Sprayer Calibration