Fort Hays State University > About FHSU > Academic Divisions > College of Health and Life Sciences > Department of Agriculture > University Farm > Yield Mapping
In an effort to learn as much as possible
about what affects crop production and profits, many growers monitor
crop yields in their fields. Traditionally, growers measured crop
yields for whole fields or for large sections of fields. Recently-available
technologies (yield monitors on combines) permit growers to measure
yields more precisely, on areas much smaller than whole fields.
Instantaneous yield monitors measure and record yields
on-the-go. Data points are continuously collected as the combine
operates. The system also has the capability to measure the area
harvested for each recorded weight or volume. When combined with
a differential global positioning system (GPS), instantaneous yield
monitors provide the data for generating site-specific yield maps.
Yields are associated with specific locations within a field automatically.
The yield monitor also measures grain moisture content on-the-go.
The collect-and-weigh method is typically used in conjunction with
instantaneous yield monitoring for the purpose of calibrating the
on-the-go monitors to ensure accuracy.