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Title:Real-Time Nitrogen Detection System of Corn Crop Using a Multi -Spectral Imaging Sensor
Author(s):Kim, Yunseop
Doctoral Committee Chair(s):Reid, John F.
Department / Program:Agricultural Engineering
Discipline:Agricultural Engineering
Degree Granting Institution:University of Illinois at Urbana-Champaign
Subject(s):Environmental Sciences
Abstract:Real-time N-deficiency was estimated by using NDVI and mapped relative to unstressed healthy plants. The MSIS system provided a measure of crop response that correlated with plant SPAD measurements (-0.93 for G channel and -0.88 for R channel). The system had smaller measurement variation than the SPAD meter with a standard deviation of 0.13 in MSIS measurements whereas 0.26 in SPAD measurements. The MSIS-based supplemental N treatment improved the crop N status and increased the yield in one case, while in other case no yield improvement was observed with MSIS-based fertilization.
Issue Date:2002
Description:139 p.
Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2002.
Other Identifier(s):(MiAaPQ)AAI3044142
Date Available in IDEALS:2015-09-28
Date Deposited:2002

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