Sensors on the combine harvester record the yield and grain moisture by measuring the amount of grain, the distance travelled and specified working width. A yield value is recorded every one to two seconds. Geographic coordinates can be added to the yield measurement points by linking the yield measurement to accurately corrected GPS signals (georeferencing). Yield mapping provides a complete picture of the real spatial yield potential for the whole field.
Using TELEMATICS or a memory card, the data can be imported from the machine into any ISO-compatible farm management software such as AGROCOM NET or 365FarmNet, where it serves as a basis for precision farming. Yield maps created in the software quickly reveal yield variations within a field and make it possible to locate potential problem areas. These maps can then be used to plan site-specific management measures and to monitor changes by making comparisons in subsequent years. The yield potential of different crops can be compared by defining yield zones. Comprehensive potential maps and forecasting trends can be developed on the basis of several years of data.
