Efeito do nitrogênio na nutrição do girassol
Autor(a) principal: | |
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Data de Publicação: | 2011 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng por |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://hdl.handle.net/11449/219680 |
Resumo: | Nitrogen (N), besides being one of the macro more absorbed by plants, is the that most limits the production of sunflower. The aim of this study was to evaluate the nutrient content in leaves, grains and nutrient export due to nitrogen levels in sunflower cultivation. A randomized experimental block design consisting of five treatments and four replications: T1 - 50 kg N ha -1 divided by 10, 20 and 20 kg ha -1, T2 - 70 kg N ha -1 divided by 10, 30 and 30 kg ha -1; T3 - 90 kg N ha -1 divided by 10, 40 and 40 kg ha -1, T4 - 110 kg N ha -1 divided by 10, 50 and 50 kg ha -1, T5 - 130 kg N ha- 1 divided by 10, 60 and 60 kg ha -1. These applications were made in installments when sowing and 34 and 48 days after sowing. The parameters were evaluated in leaf nutrient content, nutrient content in grains and nutrient export. Under the experimental conditions it was found that the optimum foliar N were purchased at a dosage above 110 kg ha -1 N. With the increasing amount of N supplied in the sunflower crop was exported over this element, but not at the same rate of increase in dosage. The lowest dose of N the lowest rates of export of P, K, Mg, S, B, Cu, Mn and Zn, while increasing the dose of this nutrient decreased the export of Ca. |
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Efeito do nitrogênio na nutrição do girassolEffect of nitrogen nutrition in sunflowerHellianthus annusN fertilizationNutrient exportNitrogen (N), besides being one of the macro more absorbed by plants, is the that most limits the production of sunflower. The aim of this study was to evaluate the nutrient content in leaves, grains and nutrient export due to nitrogen levels in sunflower cultivation. A randomized experimental block design consisting of five treatments and four replications: T1 - 50 kg N ha -1 divided by 10, 20 and 20 kg ha -1, T2 - 70 kg N ha -1 divided by 10, 30 and 30 kg ha -1; T3 - 90 kg N ha -1 divided by 10, 40 and 40 kg ha -1, T4 - 110 kg N ha -1 divided by 10, 50 and 50 kg ha -1, T5 - 130 kg N ha- 1 divided by 10, 60 and 60 kg ha -1. These applications were made in installments when sowing and 34 and 48 days after sowing. The parameters were evaluated in leaf nutrient content, nutrient content in grains and nutrient export. Under the experimental conditions it was found that the optimum foliar N were purchased at a dosage above 110 kg ha -1 N. With the increasing amount of N supplied in the sunflower crop was exported over this element, but not at the same rate of increase in dosage. The lowest dose of N the lowest rates of export of P, K, Mg, S, B, Cu, Mn and Zn, while increasing the dose of this nutrient decreased the export of Ca.Faculdade de Ciências Agronômicas - FCA Universidade Estadual Paulista - UNESP, Botucatu, SPFCA UNESP, Botucatu, SPUniversidade Federal de Campina Grande UFCG, Patos,PBFaculdade de Ciências Agronômicas - FCA Universidade Estadual Paulista - UNESP, Botucatu, SPFCA UNESP, Botucatu, SPUniversidade Estadual Paulista (UNESP)UFCGLobo, Thomaz Figueiredo [UNESP]Filho Grassi, Helio [UNESP]Brito, Iere Caindre Andrade2022-04-28T18:56:53Z2022-04-28T18:56:53Z2011-05-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article380-391Bioscience Journal, v. 27, n. 3, p. 380-391, 2011.1516-37251981-3163http://hdl.handle.net/11449/2196802-s2.0-79959989162Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengporBioscience Journalinfo:eu-repo/semantics/openAccess2022-04-28T18:56:53Zoai:repositorio.unesp.br:11449/219680Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T14:30:37.382480Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Efeito do nitrogênio na nutrição do girassol Effect of nitrogen nutrition in sunflower |
title |
Efeito do nitrogênio na nutrição do girassol |
spellingShingle |
Efeito do nitrogênio na nutrição do girassol Lobo, Thomaz Figueiredo [UNESP] Hellianthus annus N fertilization Nutrient export |
title_short |
Efeito do nitrogênio na nutrição do girassol |
title_full |
Efeito do nitrogênio na nutrição do girassol |
title_fullStr |
Efeito do nitrogênio na nutrição do girassol |
title_full_unstemmed |
Efeito do nitrogênio na nutrição do girassol |
title_sort |
Efeito do nitrogênio na nutrição do girassol |
author |
Lobo, Thomaz Figueiredo [UNESP] |
author_facet |
Lobo, Thomaz Figueiredo [UNESP] Filho Grassi, Helio [UNESP] Brito, Iere Caindre Andrade |
author_role |
author |
author2 |
Filho Grassi, Helio [UNESP] Brito, Iere Caindre Andrade |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (UNESP) UFCG |
dc.contributor.author.fl_str_mv |
Lobo, Thomaz Figueiredo [UNESP] Filho Grassi, Helio [UNESP] Brito, Iere Caindre Andrade |
dc.subject.por.fl_str_mv |
Hellianthus annus N fertilization Nutrient export |
topic |
Hellianthus annus N fertilization Nutrient export |
description |
Nitrogen (N), besides being one of the macro more absorbed by plants, is the that most limits the production of sunflower. The aim of this study was to evaluate the nutrient content in leaves, grains and nutrient export due to nitrogen levels in sunflower cultivation. A randomized experimental block design consisting of five treatments and four replications: T1 - 50 kg N ha -1 divided by 10, 20 and 20 kg ha -1, T2 - 70 kg N ha -1 divided by 10, 30 and 30 kg ha -1; T3 - 90 kg N ha -1 divided by 10, 40 and 40 kg ha -1, T4 - 110 kg N ha -1 divided by 10, 50 and 50 kg ha -1, T5 - 130 kg N ha- 1 divided by 10, 60 and 60 kg ha -1. These applications were made in installments when sowing and 34 and 48 days after sowing. The parameters were evaluated in leaf nutrient content, nutrient content in grains and nutrient export. Under the experimental conditions it was found that the optimum foliar N were purchased at a dosage above 110 kg ha -1 N. With the increasing amount of N supplied in the sunflower crop was exported over this element, but not at the same rate of increase in dosage. The lowest dose of N the lowest rates of export of P, K, Mg, S, B, Cu, Mn and Zn, while increasing the dose of this nutrient decreased the export of Ca. |
publishDate |
2011 |
dc.date.none.fl_str_mv |
2011-05-01 2022-04-28T18:56:53Z 2022-04-28T18:56:53Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
Bioscience Journal, v. 27, n. 3, p. 380-391, 2011. 1516-3725 1981-3163 http://hdl.handle.net/11449/219680 2-s2.0-79959989162 |
identifier_str_mv |
Bioscience Journal, v. 27, n. 3, p. 380-391, 2011. 1516-3725 1981-3163 2-s2.0-79959989162 |
url |
http://hdl.handle.net/11449/219680 |
dc.language.iso.fl_str_mv |
eng por |
language |
eng por |
dc.relation.none.fl_str_mv |
Bioscience Journal |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
380-391 |
dc.source.none.fl_str_mv |
Scopus 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_ |
1808128370963120128 |