Nutritional diagnosis accuracy of mango tree orchards through three DRIS formulas

Detalhes bibliográficos
Autor(a) principal: Wadt, Paulo Guilherme Salvador
Data de Publicação: 2011
Outros Autores: Silva, Davi José
Tipo de documento: Artigo
Idioma: por
Título da fonte: Pesquisa Agropecuária Brasileira (Online)
Texto Completo: https://seer.sct.embrapa.br/index.php/pab/article/view/8401
Resumo: The objective of this work was to test the application of accuracy measures to determine the usefulness of nutritional diagnosis to compare different DRIS formulas, and to evaluate the use of these measures in the DRIS function modeling process. Three DRIS formulas were evaluated: bivariate relations (simplified); multivariate relations; and DRIS function modeling. Monitoring data from commercial mango orchards grown at São Francisco River Valley, Brazil, were used. Formula performances were evaluated based on the agreement of their diagnoses with the one provided by the sufficiency range method. Global accuracy, and the ones for insufficiency, equilibrium, excess, deficiency, sufficiency and nutritional toxicity were determined. The simplified and multivariate formulas showed similar results for insufficiency and deficiency accuracies, but they had a lower performance than the DRIS function modeling formula. This latter, for allowing of the adjustment of each DRIS function sensibility coefficient, showed to be promising in reducing the risks of false diagnosis for deficiency (as for not recommend the nutrient when it is necessary) and for insufficiency (as for recommend the nutrient when it is not necessary). However, the DRIS formula for function modeling does not show a satisfactory performance for other accuracy measures.
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spelling Nutritional diagnosis accuracy of mango tree orchards through three DRIS formulasAcurácia do diagnóstico nutricional de pomares de mangueiras obtido por três fórmulas DRISMangifera indica; sufficiency ranges; foliar diagnosis; response potentialMangifera indica; faixas de suficiência; diagnose foliar; potencial de respostaThe objective of this work was to test the application of accuracy measures to determine the usefulness of nutritional diagnosis to compare different DRIS formulas, and to evaluate the use of these measures in the DRIS function modeling process. Three DRIS formulas were evaluated: bivariate relations (simplified); multivariate relations; and DRIS function modeling. Monitoring data from commercial mango orchards grown at São Francisco River Valley, Brazil, were used. Formula performances were evaluated based on the agreement of their diagnoses with the one provided by the sufficiency range method. Global accuracy, and the ones for insufficiency, equilibrium, excess, deficiency, sufficiency and nutritional toxicity were determined. The simplified and multivariate formulas showed similar results for insufficiency and deficiency accuracies, but they had a lower performance than the DRIS function modeling formula. This latter, for allowing of the adjustment of each DRIS function sensibility coefficient, showed to be promising in reducing the risks of false diagnosis for deficiency (as for not recommend the nutrient when it is necessary) and for insufficiency (as for recommend the nutrient when it is not necessary). However, the DRIS formula for function modeling does not show a satisfactory performance for other accuracy measures. O objetivo deste trabalho foi testar a aplicação de medidas de acurácia para determinar a utilidade de diagnósticos nutricionais para comparação de fórmulas DRIS, e avaliar o emprego dessas medidas no processo de modelagem das funções do Sistema Integrado de Diagnose e Recomendação (DRIS). Foram avaliadas três fórmulas: relações bivariadas simplificadas; relações multivariadas; e modelagem das funções DRIS. Foram utilizados dados de monitoramento nutricional de pomares de mangueiras cultivadas no Vale do São Francisco. O desempenho das fórmulas foi avaliado com base na concordância de seus diagnósticos com o proporcionado pelo método das faixas de suficiência. Foram determinadas as acurácias global e de insuficiência, de equilíbrio, de excesso, de deficiência, de suficiência e de toxicidade nutricional. A fórmula simplificada e a de relações multivariadas tiveram resultados semelhantes para as acurácias de deficiência e insuficiência, mas inferior ao da fórmula DRIS para modelagem das funções. Esta última, por possibilitar o ajuste do coeficiente de sensibilidade de cada função DRIS, mostrou-se promissora para diminuir riscos de diagnósticos falsos de deficiência (deixar de recomendar o nutriente quando ele é necessário) e de insuficiência (recomendar o nutriente quando ele não é necessário). No entanto, a fórmula DRIS para modelagem das funções não mostra desempenho satisfatório nas demais medidas de acurácia.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraCNPqWadt, Paulo Guilherme SalvadorSilva, Davi José2011-01-27info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/8401Pesquisa Agropecuaria Brasileira; v.45, n.10, out. 2010; 1180-1188Pesquisa Agropecuária Brasileira; v.45, n.10, out. 2010; 1180-11881678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/8401/6129https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/8401/4102info:eu-repo/semantics/openAccess2014-11-12T18:10:48Zoai:ojs.seer.sct.embrapa.br:article/8401Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2014-11-12T18:10:48Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Nutritional diagnosis accuracy of mango tree orchards through three DRIS formulas
Acurácia do diagnóstico nutricional de pomares de mangueiras obtido por três fórmulas DRIS
title Nutritional diagnosis accuracy of mango tree orchards through three DRIS formulas
spellingShingle Nutritional diagnosis accuracy of mango tree orchards through three DRIS formulas
Wadt, Paulo Guilherme Salvador
Mangifera indica; sufficiency ranges; foliar diagnosis; response potential
Mangifera indica; faixas de suficiência; diagnose foliar; potencial de resposta
title_short Nutritional diagnosis accuracy of mango tree orchards through three DRIS formulas
title_full Nutritional diagnosis accuracy of mango tree orchards through three DRIS formulas
title_fullStr Nutritional diagnosis accuracy of mango tree orchards through three DRIS formulas
title_full_unstemmed Nutritional diagnosis accuracy of mango tree orchards through three DRIS formulas
title_sort Nutritional diagnosis accuracy of mango tree orchards through three DRIS formulas
author Wadt, Paulo Guilherme Salvador
author_facet Wadt, Paulo Guilherme Salvador
Silva, Davi José
author_role author
author2 Silva, Davi José
author2_role author
dc.contributor.none.fl_str_mv
CNPq
dc.contributor.author.fl_str_mv Wadt, Paulo Guilherme Salvador
Silva, Davi José
dc.subject.por.fl_str_mv Mangifera indica; sufficiency ranges; foliar diagnosis; response potential
Mangifera indica; faixas de suficiência; diagnose foliar; potencial de resposta
topic Mangifera indica; sufficiency ranges; foliar diagnosis; response potential
Mangifera indica; faixas de suficiência; diagnose foliar; potencial de resposta
description The objective of this work was to test the application of accuracy measures to determine the usefulness of nutritional diagnosis to compare different DRIS formulas, and to evaluate the use of these measures in the DRIS function modeling process. Three DRIS formulas were evaluated: bivariate relations (simplified); multivariate relations; and DRIS function modeling. Monitoring data from commercial mango orchards grown at São Francisco River Valley, Brazil, were used. Formula performances were evaluated based on the agreement of their diagnoses with the one provided by the sufficiency range method. Global accuracy, and the ones for insufficiency, equilibrium, excess, deficiency, sufficiency and nutritional toxicity were determined. The simplified and multivariate formulas showed similar results for insufficiency and deficiency accuracies, but they had a lower performance than the DRIS function modeling formula. This latter, for allowing of the adjustment of each DRIS function sensibility coefficient, showed to be promising in reducing the risks of false diagnosis for deficiency (as for not recommend the nutrient when it is necessary) and for insufficiency (as for recommend the nutrient when it is not necessary). However, the DRIS formula for function modeling does not show a satisfactory performance for other accuracy measures.
publishDate 2011
dc.date.none.fl_str_mv 2011-01-27
dc.type.none.fl_str_mv
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://seer.sct.embrapa.br/index.php/pab/article/view/8401
url https://seer.sct.embrapa.br/index.php/pab/article/view/8401
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://seer.sct.embrapa.br/index.php/pab/article/view/8401/6129
https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/8401/4102
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Pesquisa Agropecuaria Brasileira
Pesquisa Agropecuária Brasileira
publisher.none.fl_str_mv Pesquisa Agropecuaria Brasileira
Pesquisa Agropecuária Brasileira
dc.source.none.fl_str_mv Pesquisa Agropecuaria Brasileira; v.45, n.10, out. 2010; 1180-1188
Pesquisa Agropecuária Brasileira; v.45, n.10, out. 2010; 1180-1188
1678-3921
0100-104x
reponame:Pesquisa Agropecuária Brasileira (Online)
instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron:EMBRAPA
instname_str Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
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institution EMBRAPA
reponame_str Pesquisa Agropecuária Brasileira (Online)
collection Pesquisa Agropecuária Brasileira (Online)
repository.name.fl_str_mv Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
repository.mail.fl_str_mv pab@sct.embrapa.br || sct.pab@embrapa.br
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