Due to increased awareness of nutrient management and water quality, Iowa State University Extension and Outreach has received a number of questions about nitrogen movement from Iowa’s cropping systems into surface and subsurface water. The following frequently asked questions and answers have been prepared to clarify aspects of nitrogen management and nitrogen movement in the soil system.
Nitrate-N load estimate calculator for watershed and field scale estimates.
A new publication on saturated buffers is now available from the Iowa State University Extension and Outreach Extension Store. Cleaning Iowa’s Waters with Saturated Buffers in Iowa Watersheds (WQ 0005) is offered as a free download to highlight the recent work being done with saturated buffers in Iowa. Read more about Cleaning Iowa’s Waters with Saturated Buffers, New Publication
In-field management practices including nutrient management, phosphorous, pesticide management, manure management, tillage, soil health, cover crops, living mulches, biomass harvest, extended rotations, and pasture management.
In this section, you will find print resources, presentations and other electronic copies of publications and materials that were presented at the Watershed Academy on October 24-25, 2017.