Related Links

Nutrient Reduction Resources

Iowa Nutrient Reduction Strategy

The Iowa Nutrient Reduction Strategy is a science and technology-based framework to assess and reduce nutrients to Iowa waters and the Gulf of Mexico. It is designed to direct efforts to reduce nutrients in surface water from both point and non-point sources in a scientific, reasonable and cost effective manner.

Hypoxia Task Force State & Federal Nutrient Strategies

State development and implementation of nutrient reduction strategies are a major focus of the Hypoxia Task Force (HTF).

Iowa Dept. of Ag – Division of Soil Conservation & Water Quality

Over 94% of Iowa’s land is held in private ownership, and the programs of the Iowa Department of Agriculture and Land Stewardship - Division of Soil Conservation (IDALS-DSC) have been established to work with these landowners.

4R Plus

4R Plus involves using precise 4R nutrient management and conservation practices to provide nutrients when the crop needs them and to enhance soil health and improve water quality.

Nitrogen Education

Iowa State University Extension Water Quality Program

Site dedicated to the science of water quality. Also includes a primer on nitrogen in the cropping system:


Other Water Quality & Conservation Information:

Clean Water Iowa

Agriculture’s Clean Water Alliance

Iowa Partnership for Clean Water

Conservation Counts

Water Conservation at Home

Conservation Awards

Iowa Farm Environmental Leaders


Measurement Knowlege Center - History of Measurement