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dc.contributor.authorMartínez-Cob, Antonio-
dc.contributor.authorFaci González, José María-
dc.contributor.authorBlanco Alibés, Olga-
dc.contributor.authorMedina Pueyo, Eva Teresa-
dc.contributor.authorSuvočarev, Kosana-
dc.date.accessioned2014-08-21T08:42:30Z-
dc.date.available2014-08-21T08:42:30Z-
dc.date.issued2014-07-
dc.identifier.citationMartínez-Cob A, Faci JM, Blanco O, Medina ET, Suvocarev K. Feasibility of using pyranometers for continuous estimation of ground cover fraction in table grape vineyards. Spanish Journal of Agricultural Research 12 (3): 603-610 (2014)es_ES
dc.identifier.issn2171-9292-
dc.identifier.urihttp://hdl.handle.net/10261/100959-
dc.description8 Pags.- 4 Figs.- 2 Tabls.es_ES
dc.description.abstractThis paper evaluates the feasibility of using pyranometers for continuous estimation of ground cover fraction (GCF) at remote, unattended sites. Photographical techniques were used for measuring GCF (GCFref) at a table grape vineyard grown under a net. Daily pyranometer-driven GCF estimates (GCFpyr) were obtained from solar radiation measurements above and below the canopy. For GCFpyr computation, solar radiation was averaged for two hours around solar noon (midday periods) and for daylight periods (8:00 to 18:00 Universal Time Coordinated). GCFpyr and GCFref (daylight periods) showed a good agreement: mean estimation error, 0.000; root mean square error, 0.113; index of agreement, 0.967. The high GCF attained, the large measurement range for GCF and the presence of the net above the table grape were the likely reasons for the good performance of GCFpyr in this crop despite the short number of pyranometers used. Further research is required to develop more appropriate calibration equations of GCFpyr and for a more detailed evaluation of using a short number of pyranometers to estimate GCF.es_ES
dc.description.sponsorshipThis work was funded by the Ministry of Scienceand Innovation, Spain (project Consolider CSD2006-00067).es_ES
dc.language.isoenges_ES
dc.publisherInstituto Nacional de Investigación y Tecnología Agraria y Alimentaria (España)es_ES
dc.relation.isversionofPublisher's versiones_ES
dc.rightsopenAccesses_ES
dc.subjectshadinges_ES
dc.subjectPARes_ES
dc.subjectVitis viniferaes_ES
dc.subjectglobal solar radiationes_ES
dc.titleFeasibility of using pyranometers for continuous estimation of ground cover fraction in table grape vineyardses_ES
dc.typeartículoes_ES
dc.identifier.doi10.5424/sjar/2014123-5453-
dc.description.peerreviewedPeer reviewedes_ES
dc.relation.publisherversionhttp://dx.doi.org/10.5424/sjar/2014123-5453es_ES
dc.identifier.e-issn1695-971X-
dc.relation.csices_ES
item.fulltextWith Fulltext-
item.openairetypeartículo-
item.cerifentitytypePublications-
item.languageiso639-1en-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.grantfulltextopen-
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