Nitrate-nitrogen patterns in the Raccoon River Basin related to agricultural practices

JL Hatfield, LD McMullen, CS Jones - Journal of soil and water …, 2009 - jswconline.org
Nitrate-N concentrations in the Raccoon River have increased beginning in the early 1970s.
Since this river is the predominant water supply for the City of Des Moines in Iowa, there is …

Effects of climatic variations over 11 years on nitrate‐nitrogen concentrations in the Raccoon River, Iowa

KJ Lucey, DA Goolsby - 1993 - Wiley Online Library
Abstract Nitrate‐nitrogen (NO3‐N) concentrations at public water‐supply intakes on the Des
Moines and Raccoon Rivers in Iowa exceeded the maximum contaminant level (MCL) of 10 …

Des Moines River nitrate in relation to watershed agricultural practices: 1945 versus 1980s

DR Keeney, TH DeLuca - 1993 - Wiley Online Library
Concern for nitrate (NO3‐N) contamination of surface waters in Iowa has brought much
speculation with regard to the source of NO3‐N. It is frequently assumed that the large …

RELATION OF NITRATE CONCENTRATIONS TO BASEFLOW IN THE RACCOON RIVER, IOWA1

KE Schilling, DS Lutz - JAWRA Journal of the American Water …, 2004 - Wiley Online Library
Excessive nitrate‐nitrogen (nitrate) export from the Raccoon River in west central Iowa is an
environmental concern to downstream receptors. The 1972 to 2000 record of daily …

Nitrate dynamics in Fall Creek, New York

AH Johnson, DR Bouldin, EA Goyette, AM Hedges - 1976 - Wiley Online Library
Nitrate loss from a 330‐km2 rural watershed in central New York was monitored over a 31‐
month period. Seasonal NO3‐N patterns were well defined with highest levels in the winter …

The relationship of nitrate concentrations in streams to row crop land use in Iowa

KE Schilling, RD Libra - 2000 - Wiley Online Library
The relationship between row crop land use and nitrate N concentrations in surface water
was evaluated for 15 Iowa watersheds ranging from 1002 to 2774 km2 and 10 smaller …

Logistic model of nitrate in streams of the upper‐midwestern United States

DK Mueller, BC Ruddy, WA Battaglin - 1997 - Wiley Online Library
Nitrate in surface water can have adverse effects on aquatic life and, in drinking‐water
supplies, can be a risk to human health. As part of a regional study, nitrate as N (NO3‐N) …

LAND USE AND STREAMWATER NITRATE‐N DYNAMICS IN AN URBAN‐RURAL FRINGE WATERSHED1

BG Wernick, KE Cook, H Schreier - JAWRA Journal of the …, 1998 - Wiley Online Library
Agricultural and residential activities are key non‐point sources of nitrogen pollution in
urban‐rural fringe areas. A GIS‐based watershed approach was used to compare land use …

Testing soils and cornstalks to evaluate nitrogen management on the watershed scale

KS Balkcom, AM Blackmer, DJ Hansen… - Journal of …, 2003 - Wiley Online Library
ABSTRACT High nitrate (NO3–N) concentrations in Iowa rivers have been linked to areas of
intensive row crop production, but they have not been experimentally linked to specific …

Assessment of total maximum daily load implementation strategies for nitrate impairment of the Raccoon River, Iowa

MK Jha, CF Wolter, KE Schilling… - Journal of …, 2010 - Wiley Online Library
The state of Iowa requires developing total maximum daily loads (TMDLs) for over 400 water
bodies that are listed on the 303 (d) list of the impaired waters. The Raccoon River …