Weed control and resistance of cotton cultivars to the herbicides diuron and fluometuron

Detalhes bibliográficos
Autor(a) principal: Nóbrega, Laudemiro Baldoíno da
Data de Publicação: 2014
Outros Autores: Beltrão, Napoleão Esberard de Macêdo, Azevedo, Demóstenes Marcos Pedrosa de
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/15383
Resumo: Two experiments (one with diuron and other with fluometuron) were conducted in a sand-loam soil in the Campo Experimental de Surubim (Surubim experiment field station) located in Surubim. Pernambuco, Brazil. The herbicides were applied in pre-emergence in the following rates: 0,7, 1,4 and 2,1 kg a.i./ha of diuron and 0.8, 1.6 and 2.4 kg a.i./ha of fluometuron, in four upland cotton cultivars (Gossypium hirsutum v. latifolium Hutch). The soils were fertilized with a 30-40-10 NPK formula with the objective of minimizing the effect of the variability of the soil fertility. The experimental area had a balanced population of broad and narrow-leave weeds. The results showed that the cultivars tested were resistant to the rate used of both herbicides and showed a similar competitive behavior in relation to the weeds. For the herbicide diuron one application of 0.7 and 1.4 kg a.i./ha was sufficient for an effective control with no toxic effect to the cotton plant. For the herbicide fluometuron the recommended rate is 2.2 kg a.i./ha.
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spelling Weed control and resistance of cotton cultivars to the herbicides diuron and fluometuronControle de plantas daninhas e resistência de cultivares de algodoeiro herbáceo aos herbicidas diuron e fluometuronpre-emergence; Gossypium hirsutum; weeds; monocotyledon weeds; dicotyledon weedspré-emergência; Gossypium hirsutum; invasoras; monocotiledôneas; dicotiledôneasTwo experiments (one with diuron and other with fluometuron) were conducted in a sand-loam soil in the Campo Experimental de Surubim (Surubim experiment field station) located in Surubim. Pernambuco, Brazil. The herbicides were applied in pre-emergence in the following rates: 0,7, 1,4 and 2,1 kg a.i./ha of diuron and 0.8, 1.6 and 2.4 kg a.i./ha of fluometuron, in four upland cotton cultivars (Gossypium hirsutum v. latifolium Hutch). The soils were fertilized with a 30-40-10 NPK formula with the objective of minimizing the effect of the variability of the soil fertility. The experimental area had a balanced population of broad and narrow-leave weeds. The results showed that the cultivars tested were resistant to the rate used of both herbicides and showed a similar competitive behavior in relation to the weeds. For the herbicide diuron one application of 0.7 and 1.4 kg a.i./ha was sufficient for an effective control with no toxic effect to the cotton plant. For the herbicide fluometuron the recommended rate is 2.2 kg a.i./ha.Dois experimentos (um com diuron e outro com fluometuron) foram conduzidos no Campo Experimental de Surubim, PE, em solo franco-arenoso. Os herbicidas foram aplicados em pré-emergência, nas doses de 0,7, 1,4 e 2,1 kg i.a/ha de diuron e 0,8, 1,6 e 2,4kg i.a./ha de fluometuron, em quatro cultivares de algodoeiro herbáceo (Gossypium hirsutum var. latifolium Hutch.). A área experimental recebeu uma adubação de NPK na fórmula 30-40-10, com o objetivo de minimizar o efeito da variação da fertilidade do solo. O complexo florístico da área experimental era constituído de plantas de folhas largas e folhas estreitas, apresentando taxas de populações aproximadamente equilibradas. Os resultados mostraram que as cultivares testadas foram resistentes às doses utilizadas de ambos os herbicidas e apresentaram comportamento semelhante com relação às plantas daninhas de uma mesma classe. Para o diuron, as doses de 0,7 e 1,4 kg i.a./ha foram suficientes para um grau de controle eficiente, sem efeitos tóxicos à cultura. Para o fluometuron, a dose de 2,2 kg ia/ha seria recomendada.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraNóbrega, Laudemiro Baldoíno daBeltrão, Napoleão Esberard de MacêdoAzevedo, Demóstenes Marcos Pedrosa de2014-04-16info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/15383Pesquisa Agropecuaria Brasileira; v.18, n.8, ago. 1983; 863-869Pesquisa Agropecuária Brasileira; v.18, n.8, ago. 1983; 863-8691678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/15383/9268info:eu-repo/semantics/openAccess2014-04-16T19:06:18Zoai:ojs.seer.sct.embrapa.br:article/15383Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2014-04-16T19:06:18Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Weed control and resistance of cotton cultivars to the herbicides diuron and fluometuron
Controle de plantas daninhas e resistência de cultivares de algodoeiro herbáceo aos herbicidas diuron e fluometuron
title Weed control and resistance of cotton cultivars to the herbicides diuron and fluometuron
spellingShingle Weed control and resistance of cotton cultivars to the herbicides diuron and fluometuron
Nóbrega, Laudemiro Baldoíno da
pre-emergence; Gossypium hirsutum; weeds; monocotyledon weeds; dicotyledon weeds
pré-emergência; Gossypium hirsutum; invasoras; monocotiledôneas; dicotiledôneas
title_short Weed control and resistance of cotton cultivars to the herbicides diuron and fluometuron
title_full Weed control and resistance of cotton cultivars to the herbicides diuron and fluometuron
title_fullStr Weed control and resistance of cotton cultivars to the herbicides diuron and fluometuron
title_full_unstemmed Weed control and resistance of cotton cultivars to the herbicides diuron and fluometuron
title_sort Weed control and resistance of cotton cultivars to the herbicides diuron and fluometuron
author Nóbrega, Laudemiro Baldoíno da
author_facet Nóbrega, Laudemiro Baldoíno da
Beltrão, Napoleão Esberard de Macêdo
Azevedo, Demóstenes Marcos Pedrosa de
author_role author
author2 Beltrão, Napoleão Esberard de Macêdo
Azevedo, Demóstenes Marcos Pedrosa de
author2_role author
author
dc.contributor.none.fl_str_mv

dc.contributor.author.fl_str_mv Nóbrega, Laudemiro Baldoíno da
Beltrão, Napoleão Esberard de Macêdo
Azevedo, Demóstenes Marcos Pedrosa de
dc.subject.por.fl_str_mv pre-emergence; Gossypium hirsutum; weeds; monocotyledon weeds; dicotyledon weeds
pré-emergência; Gossypium hirsutum; invasoras; monocotiledôneas; dicotiledôneas
topic pre-emergence; Gossypium hirsutum; weeds; monocotyledon weeds; dicotyledon weeds
pré-emergência; Gossypium hirsutum; invasoras; monocotiledôneas; dicotiledôneas
description Two experiments (one with diuron and other with fluometuron) were conducted in a sand-loam soil in the Campo Experimental de Surubim (Surubim experiment field station) located in Surubim. Pernambuco, Brazil. The herbicides were applied in pre-emergence in the following rates: 0,7, 1,4 and 2,1 kg a.i./ha of diuron and 0.8, 1.6 and 2.4 kg a.i./ha of fluometuron, in four upland cotton cultivars (Gossypium hirsutum v. latifolium Hutch). The soils were fertilized with a 30-40-10 NPK formula with the objective of minimizing the effect of the variability of the soil fertility. The experimental area had a balanced population of broad and narrow-leave weeds. The results showed that the cultivars tested were resistant to the rate used of both herbicides and showed a similar competitive behavior in relation to the weeds. For the herbicide diuron one application of 0.7 and 1.4 kg a.i./ha was sufficient for an effective control with no toxic effect to the cotton plant. For the herbicide fluometuron the recommended rate is 2.2 kg a.i./ha.
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/15383
url https://seer.sct.embrapa.br/index.php/pab/article/view/15383
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/15383/9268
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.18, n.8, ago. 1983; 863-869
Pesquisa Agropecuária Brasileira; v.18, n.8, ago. 1983; 863-869
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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