Precision agriculture has many benefits, but the results are only as good as the data provided. Yield monitors and GPS receivers can reveal much about a field's performance at harvest time

Accurate Global Navigation Satellite System (GNSS) sources are important in several aspects of production agriculture today. This technology was the driver for the development of variable-rate application (VRA) of crop inputs and seed. The process started by collecting GPS reference soil samples that lead to the creation of VRA fertilizer application maps. Now, farmers and service providers have the ability to create VRA maps for almost every product applied during the growing season.