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Published online 11 May 2005
Published in J Environ Qual 34:1102-1111 (2005)
DOI: 10.2134/jeq2004.0200
© 2005 American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America
677 S. Segoe Rd., Madison, WI 53711 USA
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Tillage and Nutrient Source Effects on Water Quality and Corn Grain Yield from a Flat Landscape

David P. Thomaa,*, Satish C. Guptab, Jeffrey S. Strockc and John F. Moncriefb

a USDA-ARS Southwest Watershed Research Center, 2000 East Allen Road, Tucson, AZ 85719
b Department of Soil Water and Climate, University of Minnesota, 1991 Upper Buford Circle, St. Paul, MN 55108
c Southwest Research and Outreach Center, 23669 130th Street, Lamberton, MN 56152



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  		Fig. 1. Plot layout and treatments.

 


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  		Fig. 2. Variation in corn grain yield 1999 through 2002. Bars represent one standard deviation from the mean. Large variability between years was due to climatic differences.

 




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