Comparison of two DRIS methods for diagnosing nutrients deficiencies in coffee trees

Detalhes bibliográficos
Autor(a) principal: Partelli, Fábio Luiz
Data de Publicação: 2006
Outros Autores: Vieira, Henrique Duarte, Monnerat, Pedro Henrique, Viana, Alexandre Pio
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/7137
Resumo: The objective of this work was to compare the nutritional diagnoses by DRIS and DRIS with the incorporation of dry matter (modified DRIS), under four criteria: all ratios between nutrients, nutrient ratios with larger variance ratio, smaller coefficient of variation, and nutrient ratios with values greater than one. Leaf concentrations of N, P, K, Ca, Mg, S, B, Cu, Fe, Mn and Zn, and the productivity of 56 organic crops of 'Conilon' coffee of the State of Espírito Santo, Brazil, were used. The frequency of the nutrient whose index was the most negative and the most positive, the correlation between the nutrient and its index, and the correlation between productivity and nutrient balance index were evaluated. DRIS and DRIS modified (DRIS-M) had provided similar diagnoses, and the four criteria of DRIS indices calculation changed the order of nutrients limitation in coffee trees. DRIS-M presents a little higher correlation between the productivity and the nutrient balance index, as well as, between nutrient concentration and its DRIS index.
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spelling Comparison of two DRIS methods for diagnosing nutrients deficiencies in coffee treesComparação de dois métodos DRIS para o diagnóstico de deficiências nutricionais do cafeeiroCoffea canephora; procedures of calculations; mineral nutritionCoffea canephora; procedimentos de cálculos; nutrição mineralThe objective of this work was to compare the nutritional diagnoses by DRIS and DRIS with the incorporation of dry matter (modified DRIS), under four criteria: all ratios between nutrients, nutrient ratios with larger variance ratio, smaller coefficient of variation, and nutrient ratios with values greater than one. Leaf concentrations of N, P, K, Ca, Mg, S, B, Cu, Fe, Mn and Zn, and the productivity of 56 organic crops of 'Conilon' coffee of the State of Espírito Santo, Brazil, were used. The frequency of the nutrient whose index was the most negative and the most positive, the correlation between the nutrient and its index, and the correlation between productivity and nutrient balance index were evaluated. DRIS and DRIS modified (DRIS-M) had provided similar diagnoses, and the four criteria of DRIS indices calculation changed the order of nutrients limitation in coffee trees. DRIS-M presents a little higher correlation between the productivity and the nutrient balance index, as well as, between nutrient concentration and its DRIS index.O objetivo deste trabalho foi comparar as diagnoses nutricionais realizadas pelo DRIS e pelo DRIS modificado (com inclusão da matéria seca), utilizando-se quatro critérios: todas as relações entre nutrientes; as relações com maior razão de variância; as com menor coeficiente de variação e as com valor de relação maior do que um. Foram usados os teores foliares de N, P, K, Ca, Mg, S, B, Cu, Fe, Mn e Zn e a produtividade de 56 lavouras orgânicas de café 'Conilon', do Estado do Espírito Santo. Verificou-se, para os diferentes métodos e critérios, a freqüência do nutriente cujo índice foi o mais negativo e o mais positivo, a correlação entre o teor do nutriente e seu índice e a correlação entre produtividade e índice de balanço nutricional. O DRIS e o DRIS modificado (DRIS-M) proporcionaram diagnósticos próximos, e os quatro critérios de cálculo de índices DRIS alteraram a ordem de limitação de nutrientes no cafeeiro. O DRIS-M apresenta correlação um pouco mais elevada entre a produtividade e o índice de balanço nutricional, bem como entre o teor do nutriente e o seu índice DRIS.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraPartelli, Fábio LuizVieira, Henrique DuarteMonnerat, Pedro HenriqueViana, Alexandre Pio2006-02-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/7137Pesquisa Agropecuaria Brasileira; v.41, n.2, fev. 2006; 301-306Pesquisa Agropecuária Brasileira; v.41, n.2, fev. 2006; 301-3061678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/7137/4182info:eu-repo/semantics/openAccess2014-09-26T17:35:52Zoai:ojs.seer.sct.embrapa.br:article/7137Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2014-09-26T17:35:52Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Comparison of two DRIS methods for diagnosing nutrients deficiencies in coffee trees
Comparação de dois métodos DRIS para o diagnóstico de deficiências nutricionais do cafeeiro
title Comparison of two DRIS methods for diagnosing nutrients deficiencies in coffee trees
spellingShingle Comparison of two DRIS methods for diagnosing nutrients deficiencies in coffee trees
Partelli, Fábio Luiz
Coffea canephora; procedures of calculations; mineral nutrition
Coffea canephora; procedimentos de cálculos; nutrição mineral
title_short Comparison of two DRIS methods for diagnosing nutrients deficiencies in coffee trees
title_full Comparison of two DRIS methods for diagnosing nutrients deficiencies in coffee trees
title_fullStr Comparison of two DRIS methods for diagnosing nutrients deficiencies in coffee trees
title_full_unstemmed Comparison of two DRIS methods for diagnosing nutrients deficiencies in coffee trees
title_sort Comparison of two DRIS methods for diagnosing nutrients deficiencies in coffee trees
author Partelli, Fábio Luiz
author_facet Partelli, Fábio Luiz
Vieira, Henrique Duarte
Monnerat, Pedro Henrique
Viana, Alexandre Pio
author_role author
author2 Vieira, Henrique Duarte
Monnerat, Pedro Henrique
Viana, Alexandre Pio
author2_role author
author
author
dc.contributor.none.fl_str_mv

dc.contributor.author.fl_str_mv Partelli, Fábio Luiz
Vieira, Henrique Duarte
Monnerat, Pedro Henrique
Viana, Alexandre Pio
dc.subject.por.fl_str_mv Coffea canephora; procedures of calculations; mineral nutrition
Coffea canephora; procedimentos de cálculos; nutrição mineral
topic Coffea canephora; procedures of calculations; mineral nutrition
Coffea canephora; procedimentos de cálculos; nutrição mineral
description The objective of this work was to compare the nutritional diagnoses by DRIS and DRIS with the incorporation of dry matter (modified DRIS), under four criteria: all ratios between nutrients, nutrient ratios with larger variance ratio, smaller coefficient of variation, and nutrient ratios with values greater than one. Leaf concentrations of N, P, K, Ca, Mg, S, B, Cu, Fe, Mn and Zn, and the productivity of 56 organic crops of 'Conilon' coffee of the State of Espírito Santo, Brazil, were used. The frequency of the nutrient whose index was the most negative and the most positive, the correlation between the nutrient and its index, and the correlation between productivity and nutrient balance index were evaluated. DRIS and DRIS modified (DRIS-M) had provided similar diagnoses, and the four criteria of DRIS indices calculation changed the order of nutrients limitation in coffee trees. DRIS-M presents a little higher correlation between the productivity and the nutrient balance index, as well as, between nutrient concentration and its DRIS index.
publishDate 2006
dc.date.none.fl_str_mv 2006-02-01
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/7137
url https://seer.sct.embrapa.br/index.php/pab/article/view/7137
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/7137/4182
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.41, n.2, fev. 2006; 301-306
Pesquisa Agropecuária Brasileira; v.41, n.2, fev. 2006; 301-306
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)
instacron_str EMBRAPA
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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