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dc.contributor.authorPadilla Ruiz, Francisco Manuel 
dc.contributor.authorGallardo Pino, María Luisa
dc.contributor.authorPeña Fleitas, María Teresa 
dc.contributor.authorDe Souza, Romina
dc.contributor.authorThompson, Rodney 
dc.date.accessioned2020-01-16T08:09:35Z
dc.date.available2020-01-16T08:09:35Z
dc.date.issued2018-06-28
dc.identifier.issn1424-8220
dc.identifier.urihttp://hdl.handle.net/10835/7322
dc.description.abstractOptimal nitrogen (N) management is essential for profitable vegetable crop production and to minimize N losses to the environment that are a consequence of an excessive N supply. Proximal optical sensors placed in contact with or close to the crop can provide a rapid assessment of a crop N status. Three types of proximal optical sensors (chlorophyll meters, canopy reflectance sensors, and fluorescence-based flavonols meters) for monitoring the crop N status of vegetable crops are reviewed, addressing practical caveats and sampling considerations and evaluating the practical use of these sensors for crop N management. Research over recent decades has shown strong relationships between optical sensor measurements, and different measures of crop N status and of yield of vegetable species. However, the availability of both: (a) Sufficiency values to assess crop N status and (b) algorithms to translate sensor measurements into N fertilizer recommendations are limited for vegetable crops. Optical sensors have potential for N management of vegetable crops. However, research should go beyond merely diagnosing crop N status. Research should now focus on the determination of practical fertilization recommendations. It is envisaged that the increasing environmental and societal pressure on sustainable crop N management will stimulate progress in this area.es_ES
dc.language.isoenes_ES
dc.publisherMDPIes_ES
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internacional*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectchlorophyll meterses_ES
dc.subjectflavonolses_ES
dc.subjectfluorescencees_ES
dc.subjectprecision agriculturees_ES
dc.subjectreflectancees_ES
dc.subjectvegetation indiceses_ES
dc.titleProximal Optical Sensors for Nitrogen Management of Vegetable Crops: A Reviewes_ES
dc.typeinfo:eu-repo/semantics/articlees_ES
dc.relation.publisherversionhttps://www.mdpi.com/1424-8220/18/7/2083es_ES
dc.rights.accessRightsinfo:eu-repo/semantics/openAccesses_ES


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Attribution-NonCommercial-NoDerivatives 4.0 Internacional
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