Response of sugarcane cv. CB 45-3 to NO3 and Mo in two "tabuleiro" soils

Detalhes bibliográficos
Autor(a) principal: Fernandes, M.S.
Data de Publicação: 2014
Outros Autores: Almeida, D.J.
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/15525
Resumo: The soils were collected at the "Outeiro" farm in Campos (soil no. 23), and at km 10 of the Campos-Macaé road (soil nº 21). Soil applied NO3 increased plant dry weight in both soils while only plants on soil 23 showed a positive response to Mo applied either to the soil or as a spray. Nitrate fertilization resulted in the highest dry weight when applied with Mo and as a spray. Soil applied NO3 + Mo resulted in the second highest dry weight. Nitrate Reductase Activity (NRA) was highest (40%) in soil 23 (over soil 27) when only Mo was applied to the soil. Dry weight and NRA data show a marked difference on the effects of these soils on plant growth. The results show that "tabuleiro soils" is an inadequate designation for that group of soils. And also show that the analytic data obtained through National Program for Soil Analysis (PNARS) does not show all the relevant physical and chemical characteristics of these soils that affected plant growth, in this experiment.
id EMBRAPA-4_5c5acd447db355f3842d631f4f9fac4a
oai_identifier_str oai:ojs.seer.sct.embrapa.br:article/15525
network_acronym_str EMBRAPA-4
network_name_str Pesquisa Agropecuária Brasileira (Online)
repository_id_str
spelling Response of sugarcane cv. CB 45-3 to NO3 and Mo in two "tabuleiro" soilsResposta de cana-de-açúcar (cultivar CB 45-3) à aplicação de NO3 e Mo, em dois solos de tabuleiromolibdenium; nitrato reductase; nitratemolibdênio; nitrato-redutase; nitratoThe soils were collected at the "Outeiro" farm in Campos (soil no. 23), and at km 10 of the Campos-Macaé road (soil nº 21). Soil applied NO3 increased plant dry weight in both soils while only plants on soil 23 showed a positive response to Mo applied either to the soil or as a spray. Nitrate fertilization resulted in the highest dry weight when applied with Mo and as a spray. Soil applied NO3 + Mo resulted in the second highest dry weight. Nitrate Reductase Activity (NRA) was highest (40%) in soil 23 (over soil 27) when only Mo was applied to the soil. Dry weight and NRA data show a marked difference on the effects of these soils on plant growth. The results show that "tabuleiro soils" is an inadequate designation for that group of soils. And also show that the analytic data obtained through National Program for Soil Analysis (PNARS) does not show all the relevant physical and chemical characteristics of these soils that affected plant growth, in this experiment.Estudou-se o comportamento da cana-de-açúcar (cultivar CB 45-3) em resposta à aplicação de NO3 (nitrato de cálcio) com e sem Mo, em dois solos de tabuleiro coletados na Usina Outeiro em Campos (solo 23), e na Estrada Campos-Macaé, km 10 (solo 27), ambos na região açucareira de Campos. Foram feitas determinações de peso seco, nitrogênio total, NO3 e atividade da nitrato-redutase (ANR) na parte aérea das plantas. Observou-se resposta positiva à aplicação de NO3 em ambos os solos. A aplicação de Mo, no solo ou via foliar, não teve qualquer efeito sobre as plantas na ausência de NO3. A aplicação de NO3 + Mo resultou em aumento de matéria seca e N-total das plantas (40%) no solo 23, enquanto que no solo 27 observou-se apenas aumento da ANR, não havendo, entretanto, resposta para peso seco e acumulação de nitrogênio. Observou-se um decréscimo na ANR quando da aplicação de Mo ao solo. O peso seco, teor de N-total e ANR, mostram o efeito diferencial dos dois solos sobre o crescimento das plantas estudadas. Os resultados obtidos sugerem que a análise expedida de solos (PNARS) não é suficiente, no caso dos solos de tabuleiro, para caracterizar fatores físicos e químicos que afetam diferencialmente o crescimento de plantas.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraFernandes, M.S.Almeida, D.J.2014-04-15info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/15525Pesquisa Agropecuaria Brasileira; v.17, n.1, jan. 1982; 39-42Pesquisa Agropecuária Brasileira; v.17, n.1, jan. 1982; 39-421678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/15525/9490info:eu-repo/semantics/openAccess2014-04-15T19:45:17Zoai:ojs.seer.sct.embrapa.br:article/15525Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2014-04-15T19:45:17Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Response of sugarcane cv. CB 45-3 to NO3 and Mo in two "tabuleiro" soils
Resposta de cana-de-açúcar (cultivar CB 45-3) à aplicação de NO3 e Mo, em dois solos de tabuleiro
title Response of sugarcane cv. CB 45-3 to NO3 and Mo in two "tabuleiro" soils
spellingShingle Response of sugarcane cv. CB 45-3 to NO3 and Mo in two "tabuleiro" soils
Fernandes, M.S.
molibdenium; nitrato reductase; nitrate
molibdênio; nitrato-redutase; nitrato
title_short Response of sugarcane cv. CB 45-3 to NO3 and Mo in two "tabuleiro" soils
title_full Response of sugarcane cv. CB 45-3 to NO3 and Mo in two "tabuleiro" soils
title_fullStr Response of sugarcane cv. CB 45-3 to NO3 and Mo in two "tabuleiro" soils
title_full_unstemmed Response of sugarcane cv. CB 45-3 to NO3 and Mo in two "tabuleiro" soils
title_sort Response of sugarcane cv. CB 45-3 to NO3 and Mo in two "tabuleiro" soils
author Fernandes, M.S.
author_facet Fernandes, M.S.
Almeida, D.J.
author_role author
author2 Almeida, D.J.
author2_role author
dc.contributor.none.fl_str_mv

dc.contributor.author.fl_str_mv Fernandes, M.S.
Almeida, D.J.
dc.subject.por.fl_str_mv molibdenium; nitrato reductase; nitrate
molibdênio; nitrato-redutase; nitrato
topic molibdenium; nitrato reductase; nitrate
molibdênio; nitrato-redutase; nitrato
description The soils were collected at the "Outeiro" farm in Campos (soil no. 23), and at km 10 of the Campos-Macaé road (soil nº 21). Soil applied NO3 increased plant dry weight in both soils while only plants on soil 23 showed a positive response to Mo applied either to the soil or as a spray. Nitrate fertilization resulted in the highest dry weight when applied with Mo and as a spray. Soil applied NO3 + Mo resulted in the second highest dry weight. Nitrate Reductase Activity (NRA) was highest (40%) in soil 23 (over soil 27) when only Mo was applied to the soil. Dry weight and NRA data show a marked difference on the effects of these soils on plant growth. The results show that "tabuleiro soils" is an inadequate designation for that group of soils. And also show that the analytic data obtained through National Program for Soil Analysis (PNARS) does not show all the relevant physical and chemical characteristics of these soils that affected plant growth, in this experiment.
publishDate 2014
dc.date.none.fl_str_mv 2014-04-15
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/15525
url https://seer.sct.embrapa.br/index.php/pab/article/view/15525
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/15525/9490
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.1, jan. 1982; 39-42
Pesquisa Agropecuária Brasileira; v.17, n.1, jan. 1982; 39-42
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
_version_ 1793416715800936448

Registros relacionados