Simulating nitrogen management effects on subsurface drainage water quality

Agricultural Systems

Volumn 55, Issue 4, 1997, Pages 481-501

  Azevedo, A S ^a   Singh, P ^a   Kanwar, R S ^a   Ahuja, L R ^b  

^a Iowa State University of Science and Technology   (United States)

^b AGRICULTURAL RESEARCH SERVICE   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

FERTILIZER; NITROGEN; RZWQM; SUBSURFACE DRAINAGE; WATER QUALITY;

USA, IOWA, NASHUA;

EID: 0030843914     PISSN: 0308521X     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0308-521X(97)00027-9     Document Type: Article

References (24)

1. Ahuja, L. R. (1983) Modeling infiltration into crusted soils by the Green-Ampt approach. Soil Science Society of America Journal 47, 412-418.
2. Ahuja, L. R., DeCoursey, D. G., Barnes, B. B. and Rojas, K. W. (1993) Characterization of macropore transport studied with the ARS root zone water quality model. Transactions of the ASAE 36(2), 369-380.
3. Bouwer, H. and van Schlifgaarde, J. (1963) Simplified method of predicting the fall of water table in drained land. Transactions of the ASAE 6(4), 288-291, 296.
4. Brooks, R. H. and Corey, A. T. (1964) Hydraulic properties of porous media. Hydrology paper 3, Colorado State University, Fort Collins, CO.
5. Celia, M. A., Bouloutaas, E. T. and Zarba, R. L. (1990) A general mass-conservative numerical solution for the unsaturated flow equation. Water Resources Research 26, 1483-1496.
6. Green, W. H. and Ampt, G. A. (1911) Studies on soil physics. 1. Flow of air and water through soils. Journal of Agriculture Sciences 4, 1-24.
7. Farahani, H. J., Ahuja, L. R., Peterson, G. A., Sherrod, L. A. and Mrabet, R. (1995) Root Zone Water Quality Model evaluation of dryland/no-till crop production in Eastern Colorado. In Proceedings of the International Symposium on Water Quality Modeling, ed. C. Heatwole. ASAE, St Joseph, MI.
8. Johnsen, K. E., Liu, H. H., Dane, J. H., Ahuja, L. R. and Workman, S. R. (1995) Simulating fluctuating water tables and tile drainage with a modified root zone water quality model and a new model WAFLOWM. Transactions of the ASAE 38(1), 75-83.
9. Jury, W., Gardner, W. R. and Gardner, W. H. (1991) Soil Physics. John Wiley, New York.
10. Kanwar, R. S. (1991) Long term tillage effects on the quality of subsurface drainage and shallow water. In Proceedings of the Conference on Environmentally Sound Agriculture, ed. A. B. Bottcher. University of Florida, Gainsville, FL.
11. Kanwar, R. S., Karlen, D. L., Colvin, T. S., Simpkins, W. W. and McFadden, V. J. (1993) Evaluation of tillage and crop rotation effects on groundwater quality -Nashua project. Completion report prepared for Leopold Center for Sustainable Agriculture, Iowa State University, Ames, IA.
12. Kanwar, R. S., Shahvar, Z. and Baker, J. L. (1988) Use of models to simulate the effects of agricultural practices on nitrate loss with drainage water. Math. Comput. Modelling 10(3), 183-191.
13. Nokes, S. E., Landa, F. M. and Hanson, J. D. (1995) Validation of the root zone water quality model (RZWQM) from a crop growth perspective. In Proceedings of the International Symposium on Water Quality Modeling, ed. C. Heatwole. ASAE, St Joseph, MI.
14. Sharpley, A. N. and William, J. R. (eds) (1990) EPIC-Erosion Productivity Impact Calculator. User Manual. USDA-ARS Technical Bulletin No. 1768.
15. Shuttleworth, W. J. and Wallace, J. S. (1985) Evaporation from sparse crops - an energy combination theory. Journal of the Royal Meteorological Society III, 839-855.
16. 3-N movement. PhD dissertation, Iowa State University, Ames, IA.
17. Singh, P., Johnsen, K. E., Kanwar, R. S. and Ahuja, L. R. (1995) Simulating the effects of soil types on subsurface drain flows by using RZWQM. In Proceedings of the International Symposium on Water Quality Modeling, ed. C. Heatwole. ASAE, St Joseph, MI.
18. Singh, P., Kanwar, R. S., Johnsen, K. E. and Ahuja, L. R. (1996) Calibration of an evaluation of subsurface drainage component of RZWQM. Journal of Environmental Quality 25(1), 56-62.
19. 3-N transport to subsurface drains by using RZWQM. Journal of Environmental Quality.
20. Skaggs, R. W. (1978) A water management model for shallow water table soil. Report No. 134, Water Resources Research Institute, North Carolina State University, Raleigh.
21. Steel, R. G. and Torrie, J. H. (1980) Principles and procedures of statistics. A biometrical approach. McGraw-Hill, New York.
22. USDA-ARS (1992) Root Zone Water Quality Model (RZWQM). Version 1.0. Technical documentation, USDA-ARS Great Plains Systems Research Unit, Fort Collins, CO.
23. USDA-ARS (1995) Root Zone Water Quality Model. Version 2.5. Technical documentation update. USDA-ARS Great Plains Systems Research Unit, Fort Collins, CO.
24. USDA-SCS (1982) Soil survey of Butler County, IA. USDA, SCS in cooperation with Iowa State University, Ames, IA, and Department of Soil Conservation, State of Iowa.