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Title:An Approach to Using Labile Soil Nitrogen Measurements for Calibration of the Dssat-Century Agroecosystem Model for Site-Specific Nitrogen Fertilizer Management in Illinois, Unites States
Author(s):Kwon, Ho-Young
Doctoral Committee Chair(s):Hudson, Robert J.M.
Department / Program:Natural Resrouces and Environmental Sciences
Discipline:Natural Resrouces and Environmental Sciences
Degree Granting Institution:University of Illinois at Urbana-Champaign
Subject(s):Agriculture, Soil Science
Abstract:Finally, the DSSAT-CENTURY was employed to investigate whether it was possible to develop relationships between the modeled variables and soil N fractions as the ISNT. If such relationships can be identified, it should be possible to use site-specific measurements of soil N fractions to better predict crop responses to fertilizer applications. Although it was possible to obtain reasonably good fits to N response trials, it became clearly that further calibration of leaching and nitrification/denitrification must be accomplished before it becomes practical to predict N response to fertilizer additions.
Issue Date:2006
Description:149 p.
Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2006.
Other Identifier(s):(MiAaPQ)AAI3250273
Date Available in IDEALS:2015-09-25
Date Deposited:2006

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