Water Quality Monitoring Program
Weekly handgrab samples were taken for nitrates from March 2011 through June 2011. Monthly handgrab samples were taken for total suspended solids and phosphorus.
Water Quality Monitoring at Tile Outlets
- Determine the impacts of controlled release fertilizer on nutrient use efficiency on field site
- Inform at least 50 percent of farmers in surrounding area about benefits of nutrient management practices demonstrated
- Understand farmer willingness to adopt these N management practices and monitor or tile outlets through outreach and feedback event
- Determine the impacts of spring application and fall application of nitrogen on nutrient use efficiency on field site
The project will demonstrate conservation practices that show promise of leading to better nitrogen (N) management—spring applied N over fall applied N and enhanced-efficiency fertilizer sources. These practices will be demonstrated within N management systems and compared according to N levels, to measure the impacts of these practices on water quality. During the growing season and winter months, we will monitor water flowing from tile outlets at a farm site in close proximity (7 miles) to Indian Creek watershed.
We placed a monitoring station at each of the three demonstration field's tile outlets. Data will be collected on: fertilizer N applied, crop yield, nutrient content of harvested crop and N supply in soil prior to fertilizer application.