At TriCounty FS our first step in your Precision Farming Plan is to create a grid soil map. A soil map will show the variation of crop nutrients available. Typically, the most productive areas of a field have the lowest readings. This is due to the higher yields over time depleting the soil nutrients. Based on the soil map variations we can build a variable rate fertilizer spread map to bring depleted areas up to optimal levels and reduce application rates on the less productive areas.