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dc.contributor.authorMontes, Rafael Marangoni [UNESP]
dc.contributor.authorParent, Leon Etienne
dc.contributor.authorAmorim, Daniel Angelucci de
dc.contributor.authorRozane, Danilo Eduardo [UNESP]
dc.contributor.authorParent, Sergie-Etienne
dc.contributor.authorNatale, William
dc.contributor.authorModesto, Viviane Cristina [UNESP]
dc.date.accessioned2018-11-26T15:43:43Z
dc.date.available2018-11-26T15:43:43Z
dc.date.issued2016-01-01
dc.identifierhttp://dx.doi.org/10.1590/18069657rbcs20140532
dc.identifier.citationRevista Brasileira De Ciencia Do Solo. Vicosa: Soc Brasileira De Ciencia Do Solo, v. 40, 12 p., 2016.
dc.identifier.issn0100-0683
dc.identifier.urihttp://hdl.handle.net/11449/159425
dc.description.abstractGuava response to fertilization can be monitored through plant tissue analysis. Correct interpretation of these results, based on standard levels, is of great importance for correct nutrient management of the crop. However, standard levels are constantly criticized for not considering interactions among elements. To improve the nutritional diagnosis of 'Paluma' guava (Psidium guajava L., Myrtaceae), an experiment was conducted using nitrogen fertilization (0, 0.5, 1.0, and 2.0 kg per plant per cycle of N, with urea as a source with 45 % N), and potassium fertilization (0, 0.55, 1.1, and 2.2 kg per plant per cycle of K2O, with potassium chloride as a source with 60 % K2O) in an irrigated commercial area for five consecutive cycles, 2009 through 2012, observing the influence of fertilizers and climate and assessing yield and leaf element content, using the concept of isometric log ratios (ilr) to interpret leaf analysis results (N, P, Ca, Mg, K, and S). This paper showed that nutrient balances and nutrient concentration values can be interpreted coherently using compositional data analysis. Ranges of nutrient balances also were established for Paluma guava and validated through ranges grounded in nutrient contents currently used in Brazil. Nitrogen fertilization increased Paluma guava yield. The 0.5 kg N application rate per plant and the other studied treatments practically showed the same results, and their values were affected by pruning time as well as the nutrient balances.en
dc.format.extent12
dc.language.isoeng
dc.publisherSoc Brasileira De Ciencia Do Solo
dc.relation.ispartofRevista Brasileira De Ciencia Do Solo
dc.sourceWeb of Science
dc.subjectisometric log ratio (ilr)
dc.subjectmineral nutrition
dc.subjectnutrient balance
dc.subjectcompositional analysis
dc.titleNitrogen and Potassium Fertilization in a Guava Orchard Evaluated for Five Cycles: Effects on the Plant and on Productionen
dc.typeArtigo
dcterms.rightsHolderSoc Brasileira De Ciencia Do Solo
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.contributor.institutionUniv Laval
dc.contributor.institutionEmpresa Pesquisa Agr Minas Gerais
dc.contributor.institutionUniv Fed Ceara
dc.description.affiliationUniv Estadual Paulista, Dept Solos & Adubos, Programa Posgrad Agron Ciencia Solo, Sao Paulo, Brazil
dc.description.affiliationUniv Laval, Dept Soils & Agrifood Engn, Paul Comtois Bldg, Quebec City, PQ, Canada
dc.description.affiliationEmpresa Pesquisa Agr Minas Gerais, Caldas, MG, Brazil
dc.description.affiliationUniv Estadual Paulista, Sao Paulo, Brazil
dc.description.affiliationUniv Fed Ceara, Dept Fitotecnia, Fortaleza, Ceara, Brazil
dc.description.affiliationUniv Estadual Paulista, Dept Solos & Adubos, Programa Posgrad Agron Prod Vegetal, Sao Paulo, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Dept Solos & Adubos, Programa Posgrad Agron Ciencia Solo, Sao Paulo, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Sao Paulo, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Dept Solos & Adubos, Programa Posgrad Agron Prod Vegetal, Sao Paulo, Brazil
dc.identifier.doi10.1590/18069657rbcs20140532
dc.identifier.scieloS0100-06832016000100534
dc.identifier.wosWOS:000396234000002
dc.rights.accessRightsAcesso aberto
dc.identifier.fileS0100-06832016000100534.pdf
dc.relation.ispartofsjr0,679
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