Water quality, conservation tillage, and nutrient and manure management are closely linked. The recent update of impaired water bodies by the Iowa Department of Natural Resources lists 188 stream and river segments, lakes, and impoundments. In Iowa, tillage, nutrient management, and manure management play substantial roles in affecting both surface and groundwater quality.
Iowa State University
Al-Kaisi, Mahdi; Licht, Mark; Kwaw-Mensah, David; Hanna, H. Mark; and Tidman, Michael, "Integrating conservation tillage and manure management to improve water quality" (2003). Integrated Crop Management News. 1697.
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