{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/86046"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/86046","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Real-Time Nitrogen Detection System of Corn Crop Using a Multi -Spectral Imaging Sensor","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.","abstract_html":"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.","abstract_has_math":false,"creators":["Kim, Yunseop"],"institution":"University of Illinois at Urbana-Champaign","degree_name":"Ph.D.","degree_level":"Dissertation","degree_discipline":"Agricultural Engineering","degree_department":null,"school":null,"contributors":["Reid, John F."],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2015,"date_issued":"2015-09-28T14:53:44Z","date_published":"2015-09-28T14:53:44Z","updated_at":"2026-07-22T22:26:26Z","subjects":["Environmental Sciences"],"languages":["eng"],"rights":[],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier","label":"Identifier","values":["(MiAaPQ)AAI3044142"],"render_values":[{"text":"(MiAaPQ)AAI3044142","href":null,"code":true}]}]},"links":{"outbound_url":"http://hdl.handle.net/2142/86046","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Reid, John F."]},{"key":"dc:creator","label":"Author","values":["Kim, Yunseop"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2015-09-28T14:53:44Z","10000-01-01","2002"]},{"key":"dc:type","label":"Dc Type","values":["text"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Agricultural Engineering"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Dissertation"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Ph.D."]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["University of Illinois at Urbana-Champaign"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Environmental Sciences"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["eng"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["http://hdl.handle.net/2142/86046","(MiAaPQ)AAI3044142"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["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.","Made available in DSpace on 2015-09-28T14:53:44Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 3044142.pdf: 6470325 bytes, checksum: 7288ab3bce3e771910e8ee3b2979700c (MD5) Previous issue date: 2002","Embargo set by: Seth Robbins for item 87327 Lift date: Forever Reason: Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs","Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs","U of I Only","139 p.","Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2002."]},{"key":"dc:title","label":"Title","values":["Real-Time Nitrogen Detection System of Corn Crop Using a Multi -Spectral Imaging Sensor"]}]}],"canonical_facts":{"dc:contributor":["Reid, John F."],"dc:creator":["Kim, Yunseop"],"dc:date":["2015-09-28T14:53:44Z","10000-01-01","2002"],"dc:description":["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.","Made available in DSpace on 2015-09-28T14:53:44Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 3044142.pdf: 6470325 bytes, checksum: 7288ab3bce3e771910e8ee3b2979700c (MD5) Previous issue date: 2002","Embargo set by: Seth Robbins for item 87327 Lift date: Forever Reason: Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs","Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs","U of I Only","139 p.","Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2002."],"dc:identifier":["http://hdl.handle.net/2142/86046","(MiAaPQ)AAI3044142"],"dc:language":["eng"],"dc:subject":["Environmental Sciences"],"dc:title":["Real-Time Nitrogen Detection System of Corn Crop Using a Multi -Spectral Imaging Sensor"],"dc:type":["text"],"thesis:degree_discipline":["Agricultural Engineering"],"thesis:degree_level":["Dissertation"],"thesis:degree_name":["Ph.D."],"thesis:institution_name":["University of Illinois at Urbana-Champaign"]},"updated_at":"2026-07-22T22:26:26Z"}