{"id":"https://openalex.org/W2908941153","doi":"https://doi.org/10.3390/rs11020112","title":"Assessing Correlation of High-Resolution NDVI with Fertilizer Application Level and Yield of Rice and Wheat Crops Using Small UAVs","display_name":"Assessing Correlation of High-Resolution NDVI with Fertilizer Application Level and Yield of Rice and Wheat Crops Using Small UAVs","publication_year":2019,"publication_date":"2019-01-09","ids":{"openalex":"https://openalex.org/W2908941153","doi":"https://doi.org/10.3390/rs11020112","mag":"2908941153"},"language":"en","primary_location":{"id":"doi:10.3390/rs11020112","is_oa":true,"landing_page_url":"https://doi.org/10.3390/rs11020112","pdf_url":"https://www.mdpi.com/2072-4292/11/2/112/pdf?version=1547205772","source":{"id":"https://openalex.org/S43295729","display_name":"Remote Sensing","issn_l":"2072-4292","issn":["2072-4292"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Remote Sensing","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","doaj"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://www.mdpi.com/2072-4292/11/2/112/pdf?version=1547205772","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5040180627","display_name":"Senlin Guan","orcid":"https://orcid.org/0000-0002-1118-9465"},"institutions":[{"id":"https://openalex.org/I1323638106","display_name":"National Agriculture and Food Research Organization","ror":"https://ror.org/023v4bd62","country_code":"JP","type":"government","lineage":["https://openalex.org/I1323638106"]},{"id":"https://openalex.org/I4210124518","display_name":"Kyushu Okinawa Agricultural Research Center","ror":"https://ror.org/02890ms09","country_code":"JP","type":"facility","lineage":["https://openalex.org/I1323638106","https://openalex.org/I4210124518"]}],"countries":["JP"],"is_corresponding":true,"raw_author_name":"Senlin Guan","raw_affiliation_strings":["National Agriculture and Food Research Organization, Kyushu Okinawa Agricultural Research Center, 496 Izumi, Chikugo, Fukuoka 833-0041, Japan"],"affiliations":[{"raw_affiliation_string":"National Agriculture and Food Research Organization, Kyushu Okinawa Agricultural Research Center, 496 Izumi, Chikugo, Fukuoka 833-0041, Japan","institution_ids":["https://openalex.org/I1323638106","https://openalex.org/I4210124518"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5077876855","display_name":"Koichiro Fukami","orcid":"https://orcid.org/0000-0001-7818-1348"},"institutions":[{"id":"https://openalex.org/I1323638106","display_name":"National Agriculture and Food Research Organization","ror":"https://ror.org/023v4bd62","country_code":"JP","type":"government","lineage":["https://openalex.org/I1323638106"]},{"id":"https://openalex.org/I4210124518","display_name":"Kyushu Okinawa Agricultural Research Center","ror":"https://ror.org/02890ms09","country_code":"JP","type":"facility","lineage":["https://openalex.org/I1323638106","https://openalex.org/I4210124518"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Koichiro Fukami","raw_affiliation_strings":["National Agriculture and Food Research Organization, Kyushu Okinawa Agricultural Research Center, 496 Izumi, Chikugo, Fukuoka 833-0041, Japan"],"affiliations":[{"raw_affiliation_string":"National Agriculture and Food Research Organization, Kyushu Okinawa Agricultural Research Center, 496 Izumi, Chikugo, Fukuoka 833-0041, Japan","institution_ids":["https://openalex.org/I1323638106","https://openalex.org/I4210124518"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5010829138","display_name":"Hitoshi Matsunaka","orcid":null},"institutions":[{"id":"https://openalex.org/I1323638106","display_name":"National Agriculture and Food Research Organization","ror":"https://ror.org/023v4bd62","country_code":"JP","type":"government","lineage":["https://openalex.org/I1323638106"]},{"id":"https://openalex.org/I4210124518","display_name":"Kyushu Okinawa Agricultural Research Center","ror":"https://ror.org/02890ms09","country_code":"JP","type":"facility","lineage":["https://openalex.org/I1323638106","https://openalex.org/I4210124518"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Hitoshi Matsunaka","raw_affiliation_strings":["National Agriculture and Food Research Organization, Kyushu Okinawa Agricultural Research Center, 496 Izumi, Chikugo, Fukuoka 833-0041, Japan"],"affiliations":[{"raw_affiliation_string":"National Agriculture and Food Research Organization, Kyushu Okinawa Agricultural Research Center, 496 Izumi, Chikugo, Fukuoka 833-0041, Japan","institution_ids":["https://openalex.org/I1323638106","https://openalex.org/I4210124518"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5050022203","display_name":"Midori Okami","orcid":null},"institutions":[{"id":"https://openalex.org/I1323638106","display_name":"National Agriculture and Food Research Organization","ror":"https://ror.org/023v4bd62","country_code":"JP","type":"government","lineage":["https://openalex.org/I1323638106"]},{"id":"https://openalex.org/I4210124518","display_name":"Kyushu Okinawa Agricultural Research Center","ror":"https://ror.org/02890ms09","country_code":"JP","type":"facility","lineage":["https://openalex.org/I1323638106","https://openalex.org/I4210124518"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Midori Okami","raw_affiliation_strings":["National Agriculture and Food Research Organization, Kyushu Okinawa Agricultural Research Center, 496 Izumi, Chikugo, Fukuoka 833-0041, Japan"],"affiliations":[{"raw_affiliation_string":"National Agriculture and Food Research Organization, Kyushu Okinawa Agricultural Research Center, 496 Izumi, Chikugo, Fukuoka 833-0041, Japan","institution_ids":["https://openalex.org/I1323638106","https://openalex.org/I4210124518"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5105517339","display_name":"Ryo Tanaka","orcid":"https://orcid.org/0000-0003-1035-9159"},"institutions":[{"id":"https://openalex.org/I1323638106","display_name":"National Agriculture and Food Research Organization","ror":"https://ror.org/023v4bd62","country_code":"JP","type":"government","lineage":["https://openalex.org/I1323638106"]},{"id":"https://openalex.org/I4210124518","display_name":"Kyushu Okinawa Agricultural Research Center","ror":"https://ror.org/02890ms09","country_code":"JP","type":"facility","lineage":["https://openalex.org/I1323638106","https://openalex.org/I4210124518"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Ryo Tanaka","raw_affiliation_strings":["National Agriculture and Food Research Organization, Kyushu Okinawa Agricultural Research Center, 496 Izumi, Chikugo, Fukuoka 833-0041, Japan"],"affiliations":[{"raw_affiliation_string":"National Agriculture and Food Research Organization, Kyushu Okinawa Agricultural Research Center, 496 Izumi, Chikugo, Fukuoka 833-0041, Japan","institution_ids":["https://openalex.org/I1323638106","https://openalex.org/I4210124518"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5044772737","display_name":"Hiroshi Nakano","orcid":"https://orcid.org/0000-0002-0564-2550"},"institutions":[{"id":"https://openalex.org/I1323638106","display_name":"National Agriculture and Food Research Organization","ror":"https://ror.org/023v4bd62","country_code":"JP","type":"government","lineage":["https://openalex.org/I1323638106"]},{"id":"https://openalex.org/I4210124518","display_name":"Kyushu Okinawa Agricultural Research Center","ror":"https://ror.org/02890ms09","country_code":"JP","type":"facility","lineage":["https://openalex.org/I1323638106","https://openalex.org/I4210124518"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Hiroshi Nakano","raw_affiliation_strings":["National Agriculture and Food Research Organization, Kyushu Okinawa Agricultural Research Center, 496 Izumi, Chikugo, Fukuoka 833-0041, Japan"],"affiliations":[{"raw_affiliation_string":"National Agriculture and Food Research Organization, Kyushu Okinawa Agricultural Research Center, 496 Izumi, Chikugo, Fukuoka 833-0041, Japan","institution_ids":["https://openalex.org/I1323638106","https://openalex.org/I4210124518"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5029470731","display_name":"Tetsufumi Sakai","orcid":null},"institutions":[{"id":"https://openalex.org/I1323638106","display_name":"National Agriculture and Food Research Organization","ror":"https://ror.org/023v4bd62","country_code":"JP","type":"government","lineage":["https://openalex.org/I1323638106"]},{"id":"https://openalex.org/I4210124518","display_name":"Kyushu Okinawa Agricultural Research Center","ror":"https://ror.org/02890ms09","country_code":"JP","type":"facility","lineage":["https://openalex.org/I1323638106","https://openalex.org/I4210124518"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Tetsufumi Sakai","raw_affiliation_strings":["National Agriculture and Food Research Organization, Kyushu Okinawa Agricultural Research Center, 496 Izumi, Chikugo, Fukuoka 833-0041, Japan"],"affiliations":[{"raw_affiliation_string":"National Agriculture and Food Research Organization, Kyushu Okinawa Agricultural Research Center, 496 Izumi, Chikugo, Fukuoka 833-0041, Japan","institution_ids":["https://openalex.org/I1323638106","https://openalex.org/I4210124518"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5108661486","display_name":"Keiko Nakano","orcid":null},"institutions":[{"id":"https://openalex.org/I1323638106","display_name":"National Agriculture and Food Research Organization","ror":"https://ror.org/023v4bd62","country_code":"JP","type":"government","lineage":["https://openalex.org/I1323638106"]},{"id":"https://openalex.org/I4210124518","display_name":"Kyushu Okinawa Agricultural Research Center","ror":"https://ror.org/02890ms09","country_code":"JP","type":"facility","lineage":["https://openalex.org/I1323638106","https://openalex.org/I4210124518"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Keiko Nakano","raw_affiliation_strings":["National Agriculture and Food Research Organization, Kyushu Okinawa Agricultural Research Center, 496 Izumi, Chikugo, Fukuoka 833-0041, Japan"],"affiliations":[{"raw_affiliation_string":"National Agriculture and Food Research Organization, Kyushu Okinawa Agricultural Research Center, 496 Izumi, Chikugo, Fukuoka 833-0041, Japan","institution_ids":["https://openalex.org/I1323638106","https://openalex.org/I4210124518"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5008287349","display_name":"Hideki Ohdan","orcid":"https://orcid.org/0000-0002-9066-1288"},"institutions":[{"id":"https://openalex.org/I1323638106","display_name":"National Agriculture and Food Research Organization","ror":"https://ror.org/023v4bd62","country_code":"JP","type":"government","lineage":["https://openalex.org/I1323638106"]},{"id":"https://openalex.org/I4210124518","display_name":"Kyushu Okinawa Agricultural Research Center","ror":"https://ror.org/02890ms09","country_code":"JP","type":"facility","lineage":["https://openalex.org/I1323638106","https://openalex.org/I4210124518"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Hideki Ohdan","raw_affiliation_strings":["National Agriculture and Food Research Organization, Kyushu Okinawa Agricultural Research Center, 496 Izumi, Chikugo, Fukuoka 833-0041, Japan"],"affiliations":[{"raw_affiliation_string":"National Agriculture and Food Research Organization, Kyushu Okinawa Agricultural Research Center, 496 Izumi, Chikugo, Fukuoka 833-0041, Japan","institution_ids":["https://openalex.org/I1323638106","https://openalex.org/I4210124518"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5015595139","display_name":"Kimiyasu Takahashi","orcid":null},"institutions":[{"id":"https://openalex.org/I1323638106","display_name":"National Agriculture and Food Research Organization","ror":"https://ror.org/023v4bd62","country_code":"JP","type":"government","lineage":["https://openalex.org/I1323638106"]},{"id":"https://openalex.org/I4210124518","display_name":"Kyushu Okinawa Agricultural Research Center","ror":"https://ror.org/02890ms09","country_code":"JP","type":"facility","lineage":["https://openalex.org/I1323638106","https://openalex.org/I4210124518"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Kimiyasu Takahashi","raw_affiliation_strings":["National Agriculture and Food Research Organization, Kyushu Okinawa Agricultural Research Center, 496 Izumi, Chikugo, Fukuoka 833-0041, Japan"],"affiliations":[{"raw_affiliation_string":"National Agriculture and Food Research Organization, Kyushu Okinawa Agricultural Research Center, 496 Izumi, Chikugo, Fukuoka 833-0041, Japan","institution_ids":["https://openalex.org/I1323638106","https://openalex.org/I4210124518"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":10,"corresponding_author_ids":["https://openalex.org/A5040180627"],"corresponding_institution_ids":["https://openalex.org/I1323638106","https://openalex.org/I4210124518"],"apc_list":{"value":2500,"currency":"CHF","value_usd":2707},"apc_paid":{"value":2500,"currency":"CHF","value_usd":2707},"fwci":16.7677,"has_fulltext":true,"cited_by_count":177,"citation_normalized_percentile":{"value":0.99485232,"is_in_top_1_percent":true,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":99,"max":100},"biblio":{"volume":"11","issue":"2","first_page":"112","last_page":"112"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10111","display_name":"Remote Sensing in Agriculture","score":0.9998999834060669,"subfield":{"id":"https://openalex.org/subfields/2303","display_name":"Ecology"},"field":{"id":"https://openalex.org/fields/23","display_name":"Environmental Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10111","display_name":"Remote Sensing in Agriculture","score":0.9998999834060669,"subfield":{"id":"https://openalex.org/subfields/2303","display_name":"Ecology"},"field":{"id":"https://openalex.org/fields/23","display_name":"Environmental Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11164","display_name":"Remote Sensing and LiDAR Applications","score":0.9991999864578247,"subfield":{"id":"https://openalex.org/subfields/2305","display_name":"Environmental Engineering"},"field":{"id":"https://openalex.org/fields/23","display_name":"Environmental Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10226","display_name":"Land Use and Ecosystem Services","score":0.9944000244140625,"subfield":{"id":"https://openalex.org/subfields/2306","display_name":"Global and Planetary Change"},"field":{"id":"https://openalex.org/fields/23","display_name":"Environmental Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/normalized-difference-vegetation-index","display_name":"Normalized Difference Vegetation Index","score":0.8659579157829285},{"id":"https://openalex.org/keywords/remote-sensing","display_name":"Remote sensing","score":0.7290972471237183},{"id":"https://openalex.org/keywords/multispectral-image","display_name":"Multispectral image","score":0.6988336443901062},{"id":"https://openalex.org/keywords/environmental-science","display_name":"Environmental science","score":0.640550434589386},{"id":"https://openalex.org/keywords/precision-agriculture","display_name":"Precision agriculture","score":0.4557000398635864},{"id":"https://openalex.org/keywords/fertilizer","display_name":"Fertilizer","score":0.41708460450172424},{"id":"https://openalex.org/keywords/leaf-area-index","display_name":"Leaf area index","score":0.300979882478714},{"id":"https://openalex.org/keywords/agronomy","display_name":"Agronomy","score":0.2775192856788635},{"id":"https://openalex.org/keywords/agriculture","display_name":"Agriculture","score":0.18554100394248962},{"id":"https://openalex.org/keywords/geography","display_name":"Geography","score":0.16839292645454407},{"id":"https://openalex.org/keywords/biology","display_name":"Biology","score":0.07012805342674255}],"concepts":[{"id":"https://openalex.org/C1549246","wikidata":"https://www.wikidata.org/wiki/Q718775","display_name":"Normalized Difference Vegetation Index","level":3,"score":0.8659579157829285},{"id":"https://openalex.org/C62649853","wikidata":"https://www.wikidata.org/wiki/Q199687","display_name":"Remote sensing","level":1,"score":0.7290972471237183},{"id":"https://openalex.org/C173163844","wikidata":"https://www.wikidata.org/wiki/Q1761440","display_name":"Multispectral image","level":2,"score":0.6988336443901062},{"id":"https://openalex.org/C39432304","wikidata":"https://www.wikidata.org/wiki/Q188847","display_name":"Environmental science","level":0,"score":0.640550434589386},{"id":"https://openalex.org/C120217122","wikidata":"https://www.wikidata.org/wiki/Q740083","display_name":"Precision agriculture","level":3,"score":0.4557000398635864},{"id":"https://openalex.org/C2780560099","wikidata":"https://www.wikidata.org/wiki/Q83323","display_name":"Fertilizer","level":2,"score":0.41708460450172424},{"id":"https://openalex.org/C25989453","wikidata":"https://www.wikidata.org/wiki/Q446746","display_name":"Leaf area index","level":2,"score":0.300979882478714},{"id":"https://openalex.org/C6557445","wikidata":"https://www.wikidata.org/wiki/Q173113","display_name":"Agronomy","level":1,"score":0.2775192856788635},{"id":"https://openalex.org/C118518473","wikidata":"https://www.wikidata.org/wiki/Q11451","display_name":"Agriculture","level":2,"score":0.18554100394248962},{"id":"https://openalex.org/C205649164","wikidata":"https://www.wikidata.org/wiki/Q1071","display_name":"Geography","level":0,"score":0.16839292645454407},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.07012805342674255},{"id":"https://openalex.org/C166957645","wikidata":"https://www.wikidata.org/wiki/Q23498","display_name":"Archaeology","level":1,"score":0.0}],"mesh":[],"locations_count":3,"locations":[{"id":"doi:10.3390/rs11020112","is_oa":true,"landing_page_url":"https://doi.org/10.3390/rs11020112","pdf_url":"https://www.mdpi.com/2072-4292/11/2/112/pdf?version=1547205772","source":{"id":"https://openalex.org/S43295729","display_name":"Remote Sensing","issn_l":"2072-4292","issn":["2072-4292"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Remote Sensing","raw_type":"journal-article"},{"id":"pmh:oai:doaj.org/article:52c6e83fa54f411aa2d1ae584687436e","is_oa":true,"landing_page_url":"https://doaj.org/article/52c6e83fa54f411aa2d1ae584687436e","pdf_url":null,"source":{"id":"https://openalex.org/S112646816","display_name":"SHILAP Revista de lepidopterolog\u00eda","issn_l":"0300-5267","issn":["0300-5267","2340-4078"],"is_oa":true,"is_in_doaj":true,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"journal"},"license":"cc-by-sa","license_id":"https://openalex.org/licenses/cc-by-sa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Remote Sensing, Vol 11, Iss 2, p 112 (2019)","raw_type":"article"},{"id":"pmh:oai:mdpi.com:/2072-4292/11/2/112/","is_oa":true,"landing_page_url":"https://dx.doi.org/10.3390/rs11020112","pdf_url":null,"source":{"id":"https://openalex.org/S4306400947","display_name":"MDPI (MDPI AG)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I4210097602","host_organization_name":"Multidisciplinary Digital Publishing Institute (Switzerland)","host_organization_lineage":["https://openalex.org/I4210097602"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Remote Sensing; Volume 11; Issue 2; Pages: 112","raw_type":"Text"}],"best_oa_location":{"id":"doi:10.3390/rs11020112","is_oa":true,"landing_page_url":"https://doi.org/10.3390/rs11020112","pdf_url":"https://www.mdpi.com/2072-4292/11/2/112/pdf?version=1547205772","source":{"id":"https://openalex.org/S43295729","display_name":"Remote Sensing","issn_l":"2072-4292","issn":["2072-4292"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Remote Sensing","raw_type":"journal-article"},"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/2","score":0.5600000023841858,"display_name":"Zero hunger"}],"awards":[],"funders":[],"has_content":{"grobid_xml":true,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W2908941153.pdf","grobid_xml":"https://content.openalex.org/works/W2908941153.grobid-xml"},"referenced_works_count":43,"referenced_works":["https://openalex.org/W1462825729","https://openalex.org/W1843441261","https://openalex.org/W1964050442","https://openalex.org/W2002908628","https://openalex.org/W2016718980","https://openalex.org/W2038782607","https://openalex.org/W2063623478","https://openalex.org/W2069209512","https://openalex.org/W2081734510","https://openalex.org/W2119059400","https://openalex.org/W2124791638","https://openalex.org/W2125046577","https://openalex.org/W2132077228","https://openalex.org/W2337442676","https://openalex.org/W2342626385","https://openalex.org/W2461261958","https://openalex.org/W2513851811","https://openalex.org/W2593778105","https://openalex.org/W2594502636","https://openalex.org/W2601113219","https://openalex.org/W2605746098","https://openalex.org/W2606100861","https://openalex.org/W2622954938","https://openalex.org/W2624387057","https://openalex.org/W2646675373","https://openalex.org/W2698185760","https://openalex.org/W2728224506","https://openalex.org/W2761955074","https://openalex.org/W2762532244","https://openalex.org/W2765366036","https://openalex.org/W2767407176","https://openalex.org/W2790477249","https://openalex.org/W2791607395","https://openalex.org/W2801826172","https://openalex.org/W2803133125","https://openalex.org/W2804616917","https://openalex.org/W2805696215","https://openalex.org/W2806258697","https://openalex.org/W2900840130","https://openalex.org/W3125113274","https://openalex.org/W6650922628","https://openalex.org/W6719167098","https://openalex.org/W6736355653"],"related_works":["https://openalex.org/W4318664220","https://openalex.org/W2771047279","https://openalex.org/W4388409104","https://openalex.org/W3207046288","https://openalex.org/W3023446922","https://openalex.org/W4324030030","https://openalex.org/W4392566681","https://openalex.org/W1980260791","https://openalex.org/W4385533602","https://openalex.org/W2124951708"],"abstract_inverted_index":{"The":[0,69,171],"aim":[1],"of":[2,38,50,74,93,109,167,176,184,261],"this":[3],"study":[4],"was":[5,72,124,207,255],"to":[6,27,211,244,257],"use":[7],"small":[8,51,274],"unmanned":[9],"aerial":[10],"vehicles":[11],"(UAVs)":[12],"for":[13,118,264,280],"determining":[14],"high-resolution":[15],"normalized":[16],"difference":[17],"vegetation":[18],"index":[19,169],"(NDVI)":[20],"values.":[21],"Subsequently,":[22],"these":[23],"results":[24,270],"were":[25,229],"used":[26,144],"assess":[28],"their":[29],"correlations":[30],"with":[31,62,84,104,191,232],"fertilizer":[32,262,285],"application":[33,263,286],"levels":[34,260,287],"and":[35,40,56,143,186,220,267,283,290],"the":[36,115,119,156,204,214,217,226,233,241,245,251,259,273],"yields":[37],"rice":[39,178,266,289],"wheat":[41,291],"crops.":[42],"For":[43,199,224],"multispectral":[44,65],"sensing,":[45],"we":[46,112,141],"flew":[47],"two":[48],"types":[49],"UAVs":[52],"(DJI":[53],"Phantom":[54,58],"4":[55,59],"DJI":[57],"Pro)\u2014each":[60],"equipped":[61],"a":[63,89,105,145,165],"compact":[64],"sensor":[66],"(Parrot":[67],"Sequoia).":[68],"information":[70],"collected":[71],"composed":[73],"numerous":[75],"RGB":[76],"orthomosaic":[77],"images":[78],"as":[79,81],"well":[80],"reflectance":[82],"maps":[83,175],"spatial":[85],"resolution":[86],"greater":[87],"than":[88],"ground":[90,136],"sampling":[91],"distance":[92],"10.5":[94],"cm.":[95],"From":[96],"223":[97],"UAV":[98],"flight":[99],"campaigns":[100],"over":[101],"120":[102],"fields":[103,163,179],"total":[106],"area":[107],"coverage":[108],"77.48":[110],"ha,":[111],"determined":[113],"that":[114,212,272],"highest":[116],"efficiency":[117],"UAV-based":[120],"remote":[121],"sensing":[122],"measurement":[123],"approximately":[125],"19.8":[126],"ha":[127],"per":[128],"10":[129],"min":[130],"while":[131],"flying":[132],"100":[133],"m":[134],"above":[135],"level.":[137],"During":[138],"image":[139,147],"processing,":[140],"developed":[142],"batch":[146,166],"alignment":[148],"algorithm\u2014a":[149],"program":[150],"written":[151],"in":[152,159,164,182,203,213],"Python":[153],"language\u2013to":[154],"calculate":[155],"NDVI":[157,168,173,215,227,252,276],"values":[158,228,277],"experimental":[160],"plots":[161],"or":[162],"maps.":[170],"color":[172],"distribution":[174],"wide":[177],"identified":[180],"differences":[181],"stages":[183],"ripening":[185,222,247],"lodging-injury":[187],"areas,":[188],"which":[189],"accorded":[190],"practical":[192],"crop":[193],"growth":[194],"status":[195],"from":[196,240],"aboveground":[197],"observation.":[198],"direct-seeded":[200],"rice,":[201],"variation":[202],"grain":[205],"yield":[206,234,282],"most":[208],"closely":[209],"related":[210],"at":[216],"early":[218,246],"reproductive":[219,243],"late":[221],"stages.":[223,248],"wheat,":[225],"highly":[230],"correlated":[231],"(":[235],"R":[236],"2":[237],"=":[238],"0.601\u20130.809)":[239],"middle":[242],"Furthermore,":[249],"using":[250],"values,":[253],"it":[254],"possible":[256],"differentiate":[258],"both":[265],"wheat.":[268],"These":[269],"indicate":[271],"UAV-derived":[275],"are":[278],"effective":[279],"predicting":[281],"detecting":[284],"during":[288],"production.":[292]},"counts_by_year":[{"year":2026,"cited_by_count":3},{"year":2025,"cited_by_count":20},{"year":2024,"cited_by_count":30},{"year":2023,"cited_by_count":27},{"year":2022,"cited_by_count":26},{"year":2021,"cited_by_count":32},{"year":2020,"cited_by_count":30},{"year":2019,"cited_by_count":9}],"updated_date":"2026-03-28T08:17:26.163206","created_date":"2019-01-25T00:00:00"}