The confidential water testing program engages farmers in nutrient and water quality issues by pro viding specific information on nutrient losses from their operations.
The Illinois Corn Growers Association and ZMF are working with IFB and CFBs and 28 SWCD offices to provide nitrate sensors, training, educational kits, and promotional materials. The sensors provide a way for farmers and landowners to confidentially test tile, ditch, or stream water for nitrate-nitrogen. By comparing results to other known concentrations and to research findings, farmers can begin to understand their impact on water quality and the potential economic loss and to consider management practices that may reduce nitrogen losses.
These test results are just a snapshot of ambient nutrient levels in water from tile drains, surface runoff, or nearby streams. Nutrient levels in runoff water can vary greatly depending on the time of year, temperature, rainfall, and in-field practices. Nevertheless, the test results combined with flow rates (the volume of water leaving a site) can be used to estimate the total nutrient loading into a waterbody. In addition, farmers can estimate the pounds per acre leaving the field. These numbers are a starting point for learning and discussion about practices that are available for farmers to reduce nutrient losses.
