AAI Partners With the 4R Nutrient Stewardship Program to Achieve ...The Agribusiness Association of Iowa (AAI) is pleased to announce a partnership with the 4R Nutrient Stewardship Program, […] August 7, 2013 in News / Nutrient Management / Water Quality tagged 4R Nutrient Stewardship / 4R Nutrient Stewardship Program / 4Rs / AAI / AAI Board of Directors / ag / agribusiness / Agribusiness Association of Iowa / agriculture / Allyson Perry / Bill Northey / Dave Coppess / featured / IDALS / Iowa / Iowa Department of Agriculture and Land Stewardship / Iowa Department of Natural Resources / Iowa State University / Lara Moody / Sec. Bill Northey / TFI / The Fertilizer Institute / water quality by Admin