With these counties, the soil survey ID is included with the map unit symbol in the soil description to distinguish between duplicate map units. Be sure to pick a soil that is in the appropriate survey for the field. Sometimes an operation's fields may span more than one county. With a field that's not located in the county you selected on the General panel, select a soil that's similar to the one you want. All five values must be in the same units.
Many states use a nitrate soil test in generating nitrogen recommendations.
Nitrate soil test data is only valid for the year in which it was collected. This data isn't relevant for multiple-year planning purposes. MMP can still generate N recommendations without the nitrate soil tests. MMP's fert recs are based on your state's extension recommendations. If you have custom fert recs that you prefer to use instead, simply scroll the grid to the right on the Crops panel and enter your recs in the appropriate Custom columns.