Ground Sensor Based Variable Rate Nitrogen Management
Noh, Hyun Kwon
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https://hdl.handle.net/2142/86053
Description
Title
Ground Sensor Based Variable Rate Nitrogen Management
Author(s)
Noh, Hyun Kwon
Issue Date
2003
Doctoral Committee Chair(s)
Zhang, Qin
Department of Study
Agricultural and Biological Engineering
Discipline
Agricultural and Biological Engineering
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
Ph.D.
Degree Level
Dissertation
Keyword(s)
Agriculture, Agronomy
Language
eng
Abstract
Integrating the multi-spectral imaging sensor with a variable-rate nitrogen application system, can provide the fundamental means for performing site-specific variable-rate nitrogen side-dressing applications. Using the estimated SPAD values to support sensor-based variable rate nitrogen application at specific crop growth stages, has the potential of not only increasing the yield, but also of reducing the total N consumption. This result, however, was obtained based on only a one-year field test. Additional field tests are recommended to validate the effectiveness of sensor-based N application.
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