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Simulating Nitrate-Nitrogen Concentration from a Subsurface Drainage System in Response to Nitrogen Application Rates Using RZWQM2

Dates

Year
2011

Citation

Qi, Zhiming, Ma, Liwang, Helmers, Matthew J., Ahuja, Lajpat R., and Malone, Robert W., 2011, Simulating Nitrate-Nitrogen Concentration from a Subsurface Drainage System in Response to Nitrogen Application Rates Using RZWQM2: J. Environ. Qual., v. 41, no. 1, p. 289-295.

Summary

Computer models have been widely used to evaluate the impact of agronomic management on nitrogen (N) dynamics in subsurface drained fields. However, they have not been evaluated as to their ability to capture the variability of nitrate-nitrogen (NO3–N) concentration in subsurface drainage at a wide range of N application rates due to possible errors in the simulation of other system components. The objective of this study was to evaluate the performance of Root Zone Water Quality Model2 (RZWQM2) in simulating the response of NO3–N concentration in subsurface drainage to N application rate. A 16-yr field study conducted in Iowa at nine N rates (0–252 kg N ha-1) from 1989 to 2004 was used to evaluate the model, based on a previous calibration [...]

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  • National and Regional Climate Adaptation Science Centers
  • Northeast CASC

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Type Scheme Key
DOI http://sciencebase.gov/vocab/identifierScheme 10.2134/jeq2011.0195

Citation Extension

citationTypeJournal Article
journalJ. Environ. Qual.
parts
typePages
value289-295
typeVolume
value41
typeNumber
value1

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