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dc.creatorVilla, Pedro Manuel
dc.date.accessioned2019-07-03T06:06:07Z
dc.date.available2019-07-03T06:06:07Z
dc.date.created2017-05-01
dc.identifierISSN: 2357-3732
dc.identifier.urihttps://repositorio.unal.edu.co/handle/unal/68191
dc.descriptionNitrogen fertilization has considerable effects on growth and yield of the potato crop. Additionally, leaf expansion is one of the most important growth parameters that can be used to optimize the management of agroecological resources. We evaluated the effect of nitrogen fertilization on the leaf area index (LAI) of the potato crop during different phenological stages by two different methods. Experimental plots were stablished in a randomized block design with three replicates per fertilization treatment: no nitrogen supply (0-N), 133 Kg N ha-1 (133-N), and 400 Kg N ha-1 (400-N), using the Granola variety, at the Andes region, Mérida city, Venezuela. We measured leaf area at the main phenological stages of the crop using a plant canopy analyzer. LAI showed significant differences among treatments and phenological stages, except during the emergence stage. The maximum LAI values were obtained ca. 55 days after emergence: 400-N (1.42 ± 0.16) 133-N (0.92 ± 0.21) 0-N (0.34 ± 0.08). We showed that nitrogen fertilization had a significant effect on the development of LAI in the potato crop along its different phenological stages.
dc.formatapplication/pdf
dc.publisherUniversidad Nacional de Colombia - Sede Bogotá - Facultad de Ciencias Agrarias
dc.relationhttps://revistas.unal.edu.co/index.php/agrocol/article/view/62110
dc.relation.ispartofUniversidad Nacional de Colombia Revistas electrónicas UN Agronomía Colombiana
dc.relation.ispartofAgronomía Colombiana
dc.subjectLeaf area index
dc.subject.ddc63 Agricultura y tecnologías relacionadas / Agriculture
dc.titleLeaf area index of potato crop under three nitrogen fertilization treatments
dc.typeinfo:eu-repo/semantics/article
dc.type.spaArtículo - Article
dc.type.hasversioninfo:eu-repo/semantics/publishedVersion
dc.rights.accessRightsinfo:eu-repo/semantics/openAccess
dc.identifier.bibliographicCitationVilla, Pedro Manuel (2017) Leaf area index of potato crop under three nitrogen fertilization treatments. Agronomía Colombiana, 35 (2). pp. 171-175. ISSN 2357-3732
dc.identifier.eprintshttp://bdigital.unal.edu.co/69224/


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