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Full-Text Articles in Physical Sciences and Mathematics
Evaluating And Predicting Agricultural Management Effects Under Tile Drainage Using Modified Apsim, Robert W. Malone, N. Huth, P. S. Carberry, Liwang Ma, Thomas C. Kaspar, Douglas L. Karlen, T. Meade, Ramesh S. Kanwar, Philip Heilman
Evaluating And Predicting Agricultural Management Effects Under Tile Drainage Using Modified Apsim, Robert W. Malone, N. Huth, P. S. Carberry, Liwang Ma, Thomas C. Kaspar, Douglas L. Karlen, T. Meade, Ramesh S. Kanwar, Philip Heilman
Douglas L Karlen
An accurate and management sensitive simulation model for tile-drained Midwestern soils is needed to optimize the use of agricultural management practices (e.g., winter cover crops) to reduce nitrate leaching without adversely affecting corn yield. Our objectives were to enhance the Agricultural Production Systems Simulator (APSIM) for tile drainage, test the modified model for several management scenarios, and then predict nitrate leaching with and without winter wheat cover crop. Twelve years of data (1990–2001) from northeast Iowa were used for model testing. Management scenarios included continuous corn and corn–soybean rotations with single or split N applications. For 38 of 44 observations, …
Slides: Smart Fallowing: New Strategies In Ag Forbearance, Bonnie Colby
Slides: Smart Fallowing: New Strategies In Ag Forbearance, Bonnie Colby
Navigating the Future of the Colorado River (Martz Summer Conference, June 8-10)
Presenter: Dr. Bonnie Colby, Department of Agriculture & Resource Economics, University of Arizona
34 slides
Slides: Regional Energy-Water Resilience Under Climate Change, Bonnie G. Colby
Slides: Regional Energy-Water Resilience Under Climate Change, Bonnie G. Colby
Western Water Law, Policy and Management: Ripples, Currents, and New Channels for Inquiry (Martz Summer Conference, June 3-5)
Presenter: Dr. Bonnie G. Colby, Professor of Resource Economics & Hydrology, University of Arizona
24 slides
Slides: Agricultural Resilience And Urban Growth: A Closer Look, William R. Travis
Slides: Agricultural Resilience And Urban Growth: A Closer Look, William R. Travis
Western Water Law, Policy and Management: Ripples, Currents, and New Channels for Inquiry (Martz Summer Conference, June 3-5)
Presenter: William R. Travis, Department of Geography, Center for Science & Technology Policy Research, CIRES, University of Colorado at Boulder
30 slides