O relevo na interpretação da variabilidade espacial dos teores de nutrientes em folha de citros

dc.contributor.authorde Leao, Marisol G. A. [UNESP]
dc.contributor.authorMarques Junior, Jose [UNESP]
dc.contributor.authorde Souza, Zigomar M.
dc.contributor.authorSiqueira, Diego S. [UNESP]
dc.contributor.authorPereira, Gener Tadeu [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade Estadual de Campinas (UNICAMP)
dc.date.accessioned2014-05-20T13:17:13Z
dc.date.available2014-05-20T13:17:13Z
dc.date.issued2010-11-01
dc.description.abstractFoliar diagnosis is a method for assessing the nutritional status of agricultural crops, which helps in the understanding of soil fertility and rationalized application of fertilizers taking into account economic and environmental criteria. The study aimed to use the landrelief as criteria to assist in interpreting the spatial variability of nutrient content of the citrus leaf. The leaves were collected at regular intervals of 50 m, totaling 332 sampling points. Data were analyzed by descriptive statistics, geostatistics and induction of decision tree. With the aid of digital elevation model (MDE) and the profile planaltimetric, the area was divided into three different landrelief and sub-strands. The highest values for nutrients from the leaves of citrus were observed at the top (concave area) segments on a half-slope and lower slope. The nutrients from the citrus leaves showed high values of correlation (above 0.5) with the altitude of the study area. The technique of geostatistics and the induction of decision tree show that the relief is the variable with the greatest potential to interpret the maps of spatial variability of nutrients from the citrus leaves.en
dc.description.affiliationFCAV UNESP, Dept Solos & Adubos, BR-14884900 Jaboticabal, SP, Brazil
dc.description.affiliationFEAGRI UNICAMP, Campinas, SP, Brazil
dc.description.affiliationUnespFCAV UNESP, Dept Solos & Adubos, BR-14884900 Jaboticabal, SP, Brazil
dc.format.extent1152-1159
dc.identifierhttp://dx.doi.org/10.1590/S1415-43662010001100004
dc.identifier.citationRevista Brasileira de Engenharia Agricola E Ambiental. Joao Pessoa Pb: Universidade Federal da Paraíba (UFPB) Ccsa, v. 14, n. 11, p. 1152-1159, 2010.
dc.identifier.fileS1415-43662010001100004.pdf
dc.identifier.issn1415-4366
dc.identifier.lattes7053426037771460
dc.identifier.scieloS1415-43662010001100004
dc.identifier.urihttp://hdl.handle.net/11449/3767
dc.identifier.wosWOS:000208665700004
dc.language.isopor
dc.publisherUniversidade Federal da Paraíba (UFPB) Ccsa
dc.relation.ispartofRevista Brasileira de Engenharia Agrícola e Ambiental
dc.relation.ispartofsjr0,541
dc.rights.accessRightsAcesso aberto
dc.sourceWeb of Science
dc.subjectorangeen
dc.subjectKrigingen
dc.subjectdata miningen
dc.subjectsoil-landscape relationshipen
dc.titleO relevo na interpretação da variabilidade espacial dos teores de nutrientes em folha de citrospt
dc.title.alternativeLandrelief in the interpretation of spatial variability of nutrient content in citrus leavesen
dc.typeArtigo
dcterms.licensehttp://www.scielo.br/revistas/rbeaa/paboutj.htm
dcterms.rightsHolderUniversidade Federal da Paraíba (UFPB) Ccsa
unesp.author.lattes7053426037771460
unesp.author.orcid0000-0003-3339-1143[4]
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Ciências Agrárias e Veterinárias, Jaboticabalpt

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