Soil testing and estimation of economic rates of P and K fertilization for maize in Paraná State, Brazil

Detalhes bibliográficos
Autor(a) principal: Muzilli, O.
Data de Publicação: 2014
Outros Autores: Oliveira, E.L., Tornero, M.T.
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/15597
Resumo: From 1975 to 1978, a set of trials was carried out, in order to: a. Identify response classes of maize (Zea mays L.) to phosphorus and potassium in the soil analysis; b. Adjust production functions for each class and c. Estimate economic rates of fertilization based on these functions. Results allowed: 1. To verify greater response to phosphorus, compared to potassium, in increasing maize yields; 2. To establish limits for low (bellow 3,0 ppm). medium (3.1 to 7,0 ppm), high 7.1 to 16,0 ppm) and very high (above 16,0 ppm) for nutrient classes as a basis for interpretation of phosphorus availability by means of soil analysis (Mehlich's extractor); 3. To estimate economic dosis for phosphorus fertilization, by Mitscherlich's equation, for different ratio between fertilizer prices and maize prices, in soils with low and medium available P.
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spelling Soil testing and estimation of economic rates of P and K fertilization for maize in Paraná State, BrazilEmprego da análise do solo e estimativa de doses econômicas para adubação fosfatada e potássica em cultura de milho no Estado do Paraná, Brasilsoil analysis; phosphorus and potassium fertilization; maize; Zea mays Paraná-BrazilFósforo; fertilização-potássio; milho; Zea mays; Paraná-BrasilFrom 1975 to 1978, a set of trials was carried out, in order to: a. Identify response classes of maize (Zea mays L.) to phosphorus and potassium in the soil analysis; b. Adjust production functions for each class and c. Estimate economic rates of fertilization based on these functions. Results allowed: 1. To verify greater response to phosphorus, compared to potassium, in increasing maize yields; 2. To establish limits for low (bellow 3,0 ppm). medium (3.1 to 7,0 ppm), high 7.1 to 16,0 ppm) and very high (above 16,0 ppm) for nutrient classes as a basis for interpretation of phosphorus availability by means of soil analysis (Mehlich's extractor); 3. To estimate economic dosis for phosphorus fertilization, by Mitscherlich's equation, for different ratio between fertilizer prices and maize prices, in soils with low and medium available P.No período de 1975 a 1978 uma série de experimentos foi realizada com os objetivos de: a. identificar as classes de resposta do milho (Zea mays L.) aos teores de fósforo e potássio na análise do solo; b. ajustar funções de produção para cada classe e c. estimar doses econômicas de adubação baseadas nessas funções. Os resultados permitiram: 1. constatar maior efeito do fósforo, comparado ao potássio, no aumento da produtividade do milho; 2. estabelecer limites de classes: baixo (até 3,0 ppm), médio (de 3,1 a 7,0 ppm), alto (de 7,1 a 16,0 ppm) e muito alto (maior que 16,0 ppm) para interpretação da disponibilidade de fósforo por meio da análise do solo (extrator de Mehlich); 3. estimar doses econômicas para adubação fosfatada, pela equação de Mitscherlich, para diferentes relações entre preço do adubo é preço do milho, em solos com teor baixo e médio de P disponível.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraMuzilli, O.Oliveira, E.L.Tornero, M.T.2014-04-16info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/15597Pesquisa Agropecuaria Brasileira; v.17, n.2, fev. 1982; 203-209Pesquisa Agropecuária Brasileira; v.17, n.2, fev. 1982; 203-2091678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/15597/9600info:eu-repo/semantics/openAccess2014-04-16T12:24:16Zoai:ojs.seer.sct.embrapa.br:article/15597Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2014-04-16T12:24:16Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Soil testing and estimation of economic rates of P and K fertilization for maize in Paraná State, Brazil
Emprego da análise do solo e estimativa de doses econômicas para adubação fosfatada e potássica em cultura de milho no Estado do Paraná, Brasil
title Soil testing and estimation of economic rates of P and K fertilization for maize in Paraná State, Brazil
spellingShingle Soil testing and estimation of economic rates of P and K fertilization for maize in Paraná State, Brazil
Muzilli, O.
soil analysis; phosphorus and potassium fertilization; maize; Zea mays Paraná-Brazil
Fósforo; fertilização-potássio; milho; Zea mays; Paraná-Brasil
title_short Soil testing and estimation of economic rates of P and K fertilization for maize in Paraná State, Brazil
title_full Soil testing and estimation of economic rates of P and K fertilization for maize in Paraná State, Brazil
title_fullStr Soil testing and estimation of economic rates of P and K fertilization for maize in Paraná State, Brazil
title_full_unstemmed Soil testing and estimation of economic rates of P and K fertilization for maize in Paraná State, Brazil
title_sort Soil testing and estimation of economic rates of P and K fertilization for maize in Paraná State, Brazil
author Muzilli, O.
author_facet Muzilli, O.
Oliveira, E.L.
Tornero, M.T.
author_role author
author2 Oliveira, E.L.
Tornero, M.T.
author2_role author
author
dc.contributor.none.fl_str_mv

dc.contributor.author.fl_str_mv Muzilli, O.
Oliveira, E.L.
Tornero, M.T.
dc.subject.por.fl_str_mv soil analysis; phosphorus and potassium fertilization; maize; Zea mays Paraná-Brazil
Fósforo; fertilização-potássio; milho; Zea mays; Paraná-Brasil
topic soil analysis; phosphorus and potassium fertilization; maize; Zea mays Paraná-Brazil
Fósforo; fertilização-potássio; milho; Zea mays; Paraná-Brasil
description From 1975 to 1978, a set of trials was carried out, in order to: a. Identify response classes of maize (Zea mays L.) to phosphorus and potassium in the soil analysis; b. Adjust production functions for each class and c. Estimate economic rates of fertilization based on these functions. Results allowed: 1. To verify greater response to phosphorus, compared to potassium, in increasing maize yields; 2. To establish limits for low (bellow 3,0 ppm). medium (3.1 to 7,0 ppm), high 7.1 to 16,0 ppm) and very high (above 16,0 ppm) for nutrient classes as a basis for interpretation of phosphorus availability by means of soil analysis (Mehlich's extractor); 3. To estimate economic dosis for phosphorus fertilization, by Mitscherlich's equation, for different ratio between fertilizer prices and maize prices, in soils with low and medium available P.
publishDate 2014
dc.date.none.fl_str_mv 2014-04-16
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/15597
url https://seer.sct.embrapa.br/index.php/pab/article/view/15597
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/15597/9600
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.17, n.2, fev. 1982; 203-209
Pesquisa Agropecuária Brasileira; v.17, n.2, fev. 1982; 203-209
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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