In Precision agriculture, Variable Rate Application refers to the application of a material, such that the rate of application is based on the precise location, or qualities of the area that the material is being applied to.[1]
Variable Rate Application can be, Map Based or Sensor Based.
• Map Based VRA is pre-planned, and applications are based on VRA Prescription Maps that an Agronomist or Advisor prepares based on data sources.
• Sensor Based VRA is calculated realtime, based on sensors that are local to the Variable Rate Applicator.