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Published online 31 August 2007
Published in J Environ Qual 36:1503-1511 (2007)
DOI: 10.2134/jeq2006.0468
© 2007 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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Rye Cover Crop and Gamagrass Strip Effects on NO3 Concentration and Load in Tile Drainage

T.C. Kaspar*, D.B. Jaynes, T.B. Parkin and T.B. Moorman

USDA-ARS, National Soil Tilth Laboratory, Ames, IA 50011


Figure 1
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  		Fig. 1. Cumulative drainage for a control treatment plot over 4 yr, 2002–2005.

 

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  		Fig. 2. Average NO3 concentration of drainage water for control, cover crop, and gamagrass treatments in 2004.

 

Figure 3
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  		Fig. 3. Cumulative NO3 load of drainage water for a control treatment plot over 4 yr, 2002–2005.

 




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