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dc.rights.licenseAtribución-NoComercial 4.0 Internacional
dc.contributor.authorJamaica, David
dc.contributor.authorPlaza, Guido
dc.date.accessioned2019-07-03T16:01:58Z
dc.date.available2019-07-03T16:01:58Z
dc.date.issued2014-03-26
dc.identifier.urihttps://repositorio.unal.edu.co/handle/unal/73211
dc.description.abstractThis study aimed to evaluate (at an exploratory level), some of the different conventional sampling designs in a section of a potato crop and in a commercial crop of spinach. Weeds were sampled in a 16 x 48 m section of a potato crop with a set grid of 192 sections. The cover and density of the weeds were registered in squares of from 0.25 to 64 m2. The results were used to create a database that allowed for the simulation of different sampling designs: variables and square size. A second sampling was carried out with these results in a spinach crop of 1.16 ha with a set grid of 6 x 6 m cells, evaluating the cover in 4 m2 squares. Another database was created with this information, which was used to simulate other sampling designs such as distribution and quantity of sampling squares. According to the obtained results, a good method for approximating the quantity of squares for diverse samples is 10-12 squares (4 m2) for richness per ha and 18 or more squares for abundance per hectare. This square size is optimal since it allows for a sampling of more area without losing sight of low-profile species, with the cover variable best representing the abundance of the weeds.
dc.format.mimetypeapplication/pdf
dc.language.isospa
dc.publisherUniversidad Nacional de Colombia, Facultad de Agronomía, Centro Editorial
dc.relationhttp://revistas.unal.edu.co/index.php/agrocol/article/view/39613
dc.relation.ispartofUniversidad Nacional de Colombia Revistas electrónicas UN Agronomía Colombiana
dc.relation.ispartofAgronomía Colombiana
dc.relation.ispartofseriesAgronomía Colombiana; Vol. 32, núm. 1 (2014); 36-43 Agronomía Colombiana; Vol. 32, núm. 1 (2014); 36-43 2357-3732 0120-9965
dc.rightsDerechos reservados - Universidad Nacional de Colombia
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/
dc.titleEvaluation of various conventional methods for sampling weeds in potato and spinach crops
dc.typeArtículo de revista
dc.type.driverinfo:eu-repo/semantics/article
dc.type.versioninfo:eu-repo/semantics/publishedVersion
dc.identifier.eprintshttp://bdigital.unal.edu.co/37686/
dc.relation.referencesJamaica, David and Plaza, Guido (2014) Evaluation of various conventional methods for sampling weeds in potato and spinach crops. Agronomía Colombiana; Vol. 32, núm. 1 (2014); 36-43 Agronomía Colombiana; Vol. 32, núm. 1 (2014); 36-43 2357-3732 0120-9965 .
dc.rights.accessrightsinfo:eu-repo/semantics/openAccess
dc.subject.proposalagronomia
dc.subject.proposalproteccion de cultivos
dc.subject.proposalvegetables
dc.subject.proposalweed science
dc.subject.proposalcrop weed competition
dc.subject.proposalcover
dc.subject.proposalabundance
dc.subject.proposaldensity.
dc.subject.proposalmalezas
dc.subject.proposalpapa
dc.subject.proposalespinaca
dc.type.coarhttp://purl.org/coar/resource_type/c_6501
dc.type.coarversionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.contentText
dc.type.redcolhttp://purl.org/redcol/resource_type/ART
oaire.accessrightshttp://purl.org/coar/access_right/c_abf2


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Atribución-NoComercial 4.0 InternacionalThis work is licensed under a Creative Commons Reconocimiento-NoComercial 4.0.This document has been deposited by the author (s) under the following certificate of deposit