Revised Document Prepared by: A.L. Shober, K.L. Gartley, and J.T. Sims Department of Plant and Soil Sciences, University of Delaware Unlike other nutrients, such as potassium or phosphorus, the ...
Mike Castellano is professor of agronomy at Iowa State University and leads the Iowa Nitrogen Initiative. Matt Helmers is professor agricultural and biosystems engineering and director of the Iowa ...
Citizen scientists in Iowa are monitoring nitrate levels in streams and drinking water through the Izaak Walton League's Nitrate Watch program. The data collected supplements state monitoring efforts ...
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