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dc.rights.licenseAtribución-NoComercial 4.0 Internacional
dc.contributor.authorLópez Martínez, Carlos José
dc.contributor.authorEcheverri Sanchez, Andrés
dc.contributor.authorMenjivar Flores, Juan Carlos
dc.date.accessioned2019-07-03T01:18:00Z
dc.date.available2019-07-03T01:18:00Z
dc.date.issued2017-01-01
dc.identifier.issnISSN: 2248-7026
dc.identifier.urihttps://repositorio.unal.edu.co/handle/unal/65998
dc.description.abstractOne of the more important agricultural production centers in Colombia is the R.U.T. Irrigation District, located in the Valle de Cauca. This study evaluated the spatial distribution of ratios of Ca2+, Mg2+, Na+ and K+, along with the percentage of saturation of these bases in the cation exchange capacity. 100 samples were taken at two depths to determine the EC, pH, Ca2+, Mg2+, Na+ and K+. The interpolations were made using the Geostatistical Analyst extension of ArcGis 10.3.1. The best fit semivariogram model was used, obtaining a raster surface with values of each chemical property, with which the plans were generated. The central area of the (La Union) irrigation district was more affected, with percentages of exchangeable magnesium between 40% and 75%, an inverted Ca2+/Mg2+ ratio, and a low calcium saturation percentage. The ratios were high for Mg2+/K+, normal for K+/Mg2+, high for Ca2+/K+, and broad for (Ca2+ + Mg2+)/K+, indicating a probable potassium deficiency that affected fertility. An ionic imbalance in the exchange complex was evident in the main bases of change, which may indicate degradation processes for fertility.
dc.format.mimetypeapplication/pdf
dc.language.isospa
dc.publisherUniversidad Nacional de Colombia - Sede Medellín - Facultad de Ciencias Agrarias
dc.relationhttps://revistas.unal.edu.co/index.php/refame/article/view/61766
dc.relation.ispartofUniversidad Nacional de Colombia Revistas electrónicas UN Revista Facultad Nacional de Agronomía Medellín
dc.relation.ispartofRevista Facultad Nacional de Agronomía Medellín
dc.rightsDerechos reservados - Universidad Nacional de Colombia
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/
dc.subject.ddc63 Agricultura y tecnologías relacionadas / Agriculture
dc.titleSpatial distribution of the exchangeable base ratios in the soils of the R.U.T. irrigation district
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/67021/
dc.relation.referencesLópez Martínez, Carlos José and Echeverri Sanchez, Andrés and Menjivar Flores, Juan Carlos (2017) Spatial distribution of the exchangeable base ratios in the soils of the R.U.T. irrigation district. Revista Facultad Nacional de Agronomía Medellín, 70 (1). pp. 8083-8090. ISSN 2248-7026
dc.rights.accessrightsinfo:eu-repo/semantics/openAccess
dc.subject.proposalSoil Fertility
dc.subject.proposalNutrients
dc.subject.proposalPercentage of saturation
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