Unbiased Approach to Diagnose the Nutrient Status of Red Guava (Psidium guajava)
Autor(a) principal: | |
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Data de Publicação: | 2012 |
Outros Autores: | , , , , , , , |
Tipo de documento: | Artigo de conferência |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://hdl.handle.net/11449/196039 |
Resumo: | Fertilization of guava relies on soil and tissue testing. The interpretation of tissue test is currently conducted by comparing nutrient concentrations or dual ratios with critical values or ranges. The critical value approach is affected by nutrient interactions. Nutrient interactions can be described by dual ratios where two nutrients are compressed into a single expression or a ternary diagrams where one redundant proportion can be computed by difference between 100% and the sum of the other two. There are D(D-1) possible dual ratios in a D-parts composition and most of them are thus redundant. Nutrients are components of a mixture that convey relative, not absolute information on the composition. There are D-1 balances between components or ingredients in any mixture. Compositional data are intrinsically redundant, scale dependent and non-normally distributed. Based on the principles of equilibrium and orthogonality, the nutrient balance concept projects D-1 isometric log ratio (ilr) coordinates into the Euclidean space. The D-1 balances between groups of nutrients are ordered to reflect knowledge in plant physiology, soil fertility and crop management. Our objective was to evaluate the ilr approach using nutrient data from a guava orchard survey and fertilizer trials across the state of Sao Paulo, Brazil. Cationic balances varied widely between orchards. We found that the Redfield N/P ratio of 13 was critical for high guava yield. We present guava yield maps in ternary diagrams. Although the ratio between nutrients changing in the same direction with time is often assumed to be stationary, most guava nutrient balances and dual ratios were found to be non-stationary. The ilr model provided an unbiased nutrient diagnosis of guava. |
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Unbiased Approach to Diagnose the Nutrient Status of Red Guava (Psidium guajava)nutrient diagnosisnutrient ratiosgeometry of nutrient balancecompositional data analysisisometric log ratioRedfield ratioFertilization of guava relies on soil and tissue testing. The interpretation of tissue test is currently conducted by comparing nutrient concentrations or dual ratios with critical values or ranges. The critical value approach is affected by nutrient interactions. Nutrient interactions can be described by dual ratios where two nutrients are compressed into a single expression or a ternary diagrams where one redundant proportion can be computed by difference between 100% and the sum of the other two. There are D(D-1) possible dual ratios in a D-parts composition and most of them are thus redundant. Nutrients are components of a mixture that convey relative, not absolute information on the composition. There are D-1 balances between components or ingredients in any mixture. Compositional data are intrinsically redundant, scale dependent and non-normally distributed. Based on the principles of equilibrium and orthogonality, the nutrient balance concept projects D-1 isometric log ratio (ilr) coordinates into the Euclidean space. The D-1 balances between groups of nutrients are ordered to reflect knowledge in plant physiology, soil fertility and crop management. Our objective was to evaluate the ilr approach using nutrient data from a guava orchard survey and fertilizer trials across the state of Sao Paulo, Brazil. Cationic balances varied widely between orchards. We found that the Redfield N/P ratio of 13 was critical for high guava yield. We present guava yield maps in ternary diagrams. Although the ratio between nutrients changing in the same direction with time is often assumed to be stationary, most guava nutrient balances and dual ratios were found to be non-stationary. The ilr model provided an unbiased nutrient diagnosis of guava.Natural Sciences and Engineering Research Council of CanadaCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Univ Laval, Dept Soils & Agrifood Engn, Quebec City, PQ G1V 0A6, CanadaUniv Estadual Paulista, Dept Agron, Sao Paulo, BrazilUniv Estadual Paulista, FCAV, Dept Solos & Adubos, Sao Paulo, BrazilUniv Estadual Paulista, Dept Agron, Sao Paulo, BrazilUniv Estadual Paulista, FCAV, Dept Solos & Adubos, Sao Paulo, BrazilNatural Sciences and Engineering Research Council of Canada: CRDPJ-385199-09Natural Sciences and Engineering Research Council of Canada: NSERC-DG 2254Int Soc Horticultural ScienceUniv LavalUniversidade Estadual Paulista (Unesp)Parent, L. E.Parent, S. -E.Rozane, D. E. [UNESP]Amorim, D. A. [UNESP]Hernandes, A. [UNESP]Natale, W. [UNESP]Santos, CAFMitra, S. K.Griffis, J. L.2020-12-10T19:31:19Z2020-12-10T19:31:19Z2012-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObject145-159Iii International Symposium On Guava And Other Myrtaceae. Leuven 1: Int Soc Horticultural Science, v. 959, p. 145-159, 2012.0567-7572http://hdl.handle.net/11449/196039WOS:000323600500018Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengIii International Symposium On Guava And Other Myrtaceaeinfo:eu-repo/semantics/openAccess2021-10-23T02:54:31Zoai:repositorio.unesp.br:11449/196039Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462021-10-23T02:54:31Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Unbiased Approach to Diagnose the Nutrient Status of Red Guava (Psidium guajava) |
title |
Unbiased Approach to Diagnose the Nutrient Status of Red Guava (Psidium guajava) |
spellingShingle |
Unbiased Approach to Diagnose the Nutrient Status of Red Guava (Psidium guajava) Parent, L. E. nutrient diagnosis nutrient ratios geometry of nutrient balance compositional data analysis isometric log ratio Redfield ratio |
title_short |
Unbiased Approach to Diagnose the Nutrient Status of Red Guava (Psidium guajava) |
title_full |
Unbiased Approach to Diagnose the Nutrient Status of Red Guava (Psidium guajava) |
title_fullStr |
Unbiased Approach to Diagnose the Nutrient Status of Red Guava (Psidium guajava) |
title_full_unstemmed |
Unbiased Approach to Diagnose the Nutrient Status of Red Guava (Psidium guajava) |
title_sort |
Unbiased Approach to Diagnose the Nutrient Status of Red Guava (Psidium guajava) |
author |
Parent, L. E. |
author_facet |
Parent, L. E. Parent, S. -E. Rozane, D. E. [UNESP] Amorim, D. A. [UNESP] Hernandes, A. [UNESP] Natale, W. [UNESP] Santos, CAF Mitra, S. K. Griffis, J. L. |
author_role |
author |
author2 |
Parent, S. -E. Rozane, D. E. [UNESP] Amorim, D. A. [UNESP] Hernandes, A. [UNESP] Natale, W. [UNESP] Santos, CAF Mitra, S. K. Griffis, J. L. |
author2_role |
author author author author author author author author |
dc.contributor.none.fl_str_mv |
Univ Laval Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Parent, L. E. Parent, S. -E. Rozane, D. E. [UNESP] Amorim, D. A. [UNESP] Hernandes, A. [UNESP] Natale, W. [UNESP] Santos, CAF Mitra, S. K. Griffis, J. L. |
dc.subject.por.fl_str_mv |
nutrient diagnosis nutrient ratios geometry of nutrient balance compositional data analysis isometric log ratio Redfield ratio |
topic |
nutrient diagnosis nutrient ratios geometry of nutrient balance compositional data analysis isometric log ratio Redfield ratio |
description |
Fertilization of guava relies on soil and tissue testing. The interpretation of tissue test is currently conducted by comparing nutrient concentrations or dual ratios with critical values or ranges. The critical value approach is affected by nutrient interactions. Nutrient interactions can be described by dual ratios where two nutrients are compressed into a single expression or a ternary diagrams where one redundant proportion can be computed by difference between 100% and the sum of the other two. There are D(D-1) possible dual ratios in a D-parts composition and most of them are thus redundant. Nutrients are components of a mixture that convey relative, not absolute information on the composition. There are D-1 balances between components or ingredients in any mixture. Compositional data are intrinsically redundant, scale dependent and non-normally distributed. Based on the principles of equilibrium and orthogonality, the nutrient balance concept projects D-1 isometric log ratio (ilr) coordinates into the Euclidean space. The D-1 balances between groups of nutrients are ordered to reflect knowledge in plant physiology, soil fertility and crop management. Our objective was to evaluate the ilr approach using nutrient data from a guava orchard survey and fertilizer trials across the state of Sao Paulo, Brazil. Cationic balances varied widely between orchards. We found that the Redfield N/P ratio of 13 was critical for high guava yield. We present guava yield maps in ternary diagrams. Although the ratio between nutrients changing in the same direction with time is often assumed to be stationary, most guava nutrient balances and dual ratios were found to be non-stationary. The ilr model provided an unbiased nutrient diagnosis of guava. |
publishDate |
2012 |
dc.date.none.fl_str_mv |
2012-01-01 2020-12-10T19:31:19Z 2020-12-10T19:31:19Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/conferenceObject |
format |
conferenceObject |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
Iii International Symposium On Guava And Other Myrtaceae. Leuven 1: Int Soc Horticultural Science, v. 959, p. 145-159, 2012. 0567-7572 http://hdl.handle.net/11449/196039 WOS:000323600500018 |
identifier_str_mv |
Iii International Symposium On Guava And Other Myrtaceae. Leuven 1: Int Soc Horticultural Science, v. 959, p. 145-159, 2012. 0567-7572 WOS:000323600500018 |
url |
http://hdl.handle.net/11449/196039 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Iii International Symposium On Guava And Other Myrtaceae |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
145-159 |
dc.publisher.none.fl_str_mv |
Int Soc Horticultural Science |
publisher.none.fl_str_mv |
Int Soc Horticultural Science |
dc.source.none.fl_str_mv |
Web of Science reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1792962405288902656 |