Potassium sources in covering fertilization on cotton II - Nutritional status evaluation of crop

Detalhes bibliográficos
Autor(a) principal: Echer, Fábio Rafael
Data de Publicação: 2009
Outros Autores: Foloni, José Salvador Simoneti, Creste, José Eduardo
Tipo de documento: Artigo
Idioma: por
Título da fonte: Semina. Ciências Agrárias (Online)
Texto Completo: https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/4651
Resumo: A field experiment was conducted in Sapezal, Mato Grosso state, Brazil, in the 2007/2008 agricultural season, with the aim of determining the effect of potassium sources on cotton nutritional status. The treatments consisted of application in covering, via soil, at rate of 100 kg ha-1 of K2O, in two split applications, with KCl, K2SO4, KNO3 and K2SO4.2MgSO4 sources. Nutrients concentration in leaf tissues at bloom stage was evaluated, being interpreted by the critical level and the DRIS methods. S content in cotton leaves and the S index was higher when used K2SO4.2MgSO4 fertilizer. The Nutritional Balance Index (NBI) values were coherent with cotton yield, being the highest yields obtained with the smallest NBI in the covering fertilization with K2SO4.2MgSO4.
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spelling Potassium sources in covering fertilization on cotton II - Nutritional status evaluation of cropFontes de potássio na adubação de cobertura do algodoeiro II - Avaliação do estado nutricional da culturaGossypium hirsutum L.Critic level. DRISGossypium hirsutumNnível críticoDRISA field experiment was conducted in Sapezal, Mato Grosso state, Brazil, in the 2007/2008 agricultural season, with the aim of determining the effect of potassium sources on cotton nutritional status. The treatments consisted of application in covering, via soil, at rate of 100 kg ha-1 of K2O, in two split applications, with KCl, K2SO4, KNO3 and K2SO4.2MgSO4 sources. Nutrients concentration in leaf tissues at bloom stage was evaluated, being interpreted by the critical level and the DRIS methods. S content in cotton leaves and the S index was higher when used K2SO4.2MgSO4 fertilizer. The Nutritional Balance Index (NBI) values were coherent with cotton yield, being the highest yields obtained with the smallest NBI in the covering fertilization with K2SO4.2MgSO4.Conduziu-se um experimento de campo, em Sapezal – MT, no ano agrícola de 2007/2008, com o objetivo de avaliar o efeito das fontes de potássio sobre o estado nutricional do algodoeiro. Os tratamentos constaram da aplicação em cobertura via solo na dose de 100 kg ha-1 de K2O, parcelada em duas aplicações, nas fontes KCl, K2SO4, KNO3 e K2SO4.2MgSO4. Avaliou-se os teores de nutrientes nas folhas de algodão no florescimento, sendo interpretados pelo método do nível crítico e pelo DRIS. O teor de S nas folhas de algodão e o Índice S foram maiores com a utilização do adubo K2SO4.2MgSO4. O IBN apresentou coerência entre os seus valores e as produtividades dos tratamentos, sendo as maiores produtividades obtidas com o menor IBN na adubação potássica de cobertura na fonte K2SO4.2MgSO4.UEL2009-12-29info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/465110.5433/1679-0359.2009v30n4Sup1p1145Semina: Ciências Agrárias; Vol. 30 No. 4Sup1 (2009); 1145-1154Semina: Ciências Agrárias; v. 30 n. 4Sup1 (2009); 1145-11541679-03591676-546Xreponame:Semina. Ciências Agrárias (Online)instname:Universidade Estadual de Londrina (UEL)instacron:UELporhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/4651/3957Echer, Fábio RafaelFoloni, José Salvador SimonetiCreste, José Eduardoinfo:eu-repo/semantics/openAccess2015-11-19T18:38:28Zoai:ojs.pkp.sfu.ca:article/4651Revistahttp://www.uel.br/revistas/uel/index.php/semagrariasPUBhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/oaisemina.agrarias@uel.br1679-03591676-546Xopendoar:2015-11-19T18:38:28Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL)false
dc.title.none.fl_str_mv Potassium sources in covering fertilization on cotton II - Nutritional status evaluation of crop
Fontes de potássio na adubação de cobertura do algodoeiro II - Avaliação do estado nutricional da cultura
title Potassium sources in covering fertilization on cotton II - Nutritional status evaluation of crop
spellingShingle Potassium sources in covering fertilization on cotton II - Nutritional status evaluation of crop
Echer, Fábio Rafael
Gossypium hirsutum L.
Critic level. DRIS
Gossypium hirsutum
Nnível crítico
DRIS
title_short Potassium sources in covering fertilization on cotton II - Nutritional status evaluation of crop
title_full Potassium sources in covering fertilization on cotton II - Nutritional status evaluation of crop
title_fullStr Potassium sources in covering fertilization on cotton II - Nutritional status evaluation of crop
title_full_unstemmed Potassium sources in covering fertilization on cotton II - Nutritional status evaluation of crop
title_sort Potassium sources in covering fertilization on cotton II - Nutritional status evaluation of crop
author Echer, Fábio Rafael
author_facet Echer, Fábio Rafael
Foloni, José Salvador Simoneti
Creste, José Eduardo
author_role author
author2 Foloni, José Salvador Simoneti
Creste, José Eduardo
author2_role author
author
dc.contributor.author.fl_str_mv Echer, Fábio Rafael
Foloni, José Salvador Simoneti
Creste, José Eduardo
dc.subject.por.fl_str_mv Gossypium hirsutum L.
Critic level. DRIS
Gossypium hirsutum
Nnível crítico
DRIS
topic Gossypium hirsutum L.
Critic level. DRIS
Gossypium hirsutum
Nnível crítico
DRIS
description A field experiment was conducted in Sapezal, Mato Grosso state, Brazil, in the 2007/2008 agricultural season, with the aim of determining the effect of potassium sources on cotton nutritional status. The treatments consisted of application in covering, via soil, at rate of 100 kg ha-1 of K2O, in two split applications, with KCl, K2SO4, KNO3 and K2SO4.2MgSO4 sources. Nutrients concentration in leaf tissues at bloom stage was evaluated, being interpreted by the critical level and the DRIS methods. S content in cotton leaves and the S index was higher when used K2SO4.2MgSO4 fertilizer. The Nutritional Balance Index (NBI) values were coherent with cotton yield, being the highest yields obtained with the smallest NBI in the covering fertilization with K2SO4.2MgSO4.
publishDate 2009
dc.date.none.fl_str_mv 2009-12-29
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://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/4651
10.5433/1679-0359.2009v30n4Sup1p1145
url https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/4651
identifier_str_mv 10.5433/1679-0359.2009v30n4Sup1p1145
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/4651/3957
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 UEL
publisher.none.fl_str_mv UEL
dc.source.none.fl_str_mv Semina: Ciências Agrárias; Vol. 30 No. 4Sup1 (2009); 1145-1154
Semina: Ciências Agrárias; v. 30 n. 4Sup1 (2009); 1145-1154
1679-0359
1676-546X
reponame:Semina. Ciências Agrárias (Online)
instname:Universidade Estadual de Londrina (UEL)
instacron:UEL
instname_str Universidade Estadual de Londrina (UEL)
instacron_str UEL
institution UEL
reponame_str Semina. Ciências Agrárias (Online)
collection Semina. Ciências Agrárias (Online)
repository.name.fl_str_mv Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL)
repository.mail.fl_str_mv semina.agrarias@uel.br
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