The MDA partnered with the USDA National Agricultural Statistic Service (NASS) and University of Minnesota researchers to collect information about fertilizer use and farm management. Surveys were conducted over the phone. NASS staff are highly skilled at obtaining critical information over the phone with minimal time and burden on the producer.In 2011, the survey focused on the southeast region of Minnesota. The survey was designed to gather information about nitrogen fertilizer rates, timing of nitrogen application and use of nitrogen inhibitors.
Effective groundwater management requires accurate knowledge about the water budget, which is the amount of water stored within the system in aquifers and the amount of water flowing through the overall hydrologic system including water flowing at the surface, water flowing from above ground down into aquifers, and water flowing between aquifers below the surface.