Articles | Volume 18, issue 12
Research article
16 Dec 2014
Research article |  | 16 Dec 2014

Assessing winter cover crop nutrient uptake efficiency using a water quality simulation model

I.-Y. Yeo, S. Lee, A. M. Sadeghi, P. C. Beeson, W. D. Hively, G. W. McCarty, and M. W. Lang

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Manuscript not accepted for further review
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Cited articles

Arnold, J. G. and Fohrer, N.: SWAT2000: current capabilities and research opportunities in applied watershed modelling, Hydrol. Process., 19, 563–572, 2005.
Ator, S. W., Denver J. M., Krantz, D. E., Newell, W. L., and Martucci, S. K.: A Surficial Hydrogeologic Framework for the Mid-Atlantic Coastal Plain, US Geological Survey Professional Paper 1680, Reston, Virginia, 44 pp., 2005.
Baggs, E. M., Watson, C. A., and Rees, R. M.: The fate of nitrogen from incorporated cover crop and green manure residues, Nutr. Cycl. Agroecosys., 56, 153–163, 2000.
Bergstrom, L. F. and Jokela, W. E.: Ryegrass cover crop effects on nitrate leaching in spring barley fertilized with (NH4)-N-15 (NO3)-N-15, J. Environ. Qual., 30, 1659–1667, 2001.
Boesch, D. F., Brinsfield, R. B., and Magnien, R. E.: Chesapeake Bay eutrophication: Scientific understanding, ecosystem restoration, and challenges for agriculture, J. Environ. Qual., 30, 303–320, 2001.
Short summary
This study demonstrates the effectiveness of winter cover crops for reducing nitrate loads using the Soil and Water Assessment Tool (SWAT). It illustrates the following: (1) nitrate removal efficiency varies greatly by species, timing, and extent of winter cover crop implementation; and (2) nitrate exports vary based on edaphic and agronomic characteristics of the croplands upon which crops are planted.