Reduced doses of herbicides to control weeds in barley crops under temperate conditions
Autor(a) principal: | |
---|---|
Data de Publicação: | 2011 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10174/2707 |
Resumo: | Yield losses in cereal crops under temperate climate conditions due to weed-crop competition, namely Lolium rigidum G., can reach up to 80%, depending on the season and infestation level. Nevertheless, the costs of chemical weed control and the environmental impact caused by herbicides recommend the search for strategies to reduce their input. Therefore, the aim of this work was to study the possibility of reducing the input of different post-emergence herbicides (diclofop-methyl + fenoxaprop–p-ethyl and amidosulfuron + iodosulfuron-methyl-sodium) to control Lolium rigidum G. and broad-leaf weeds in barley under no-till, and to monitor the effect on weed population levels and crop yields. A field experiment was carried out in 2007-2008 and 2008-2009, in an experimental farm in the south of Portugal, combining different herbicide doses applied at different weed development stages. Results show that, for all herbicide doses, the earlier application provides higher weed control efficacy and higher grain yields, indicating that the reduction of doses is possible while maintaining satisfactory crop grain yields. |
id |
RCAP_9944e54b65c974d0f7c6f7b180989e00 |
---|---|
oai_identifier_str |
oai:dspace.uevora.pt:10174/2707 |
network_acronym_str |
RCAP |
network_name_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository_id_str |
7160 |
spelling |
Reduced doses of herbicides to control weeds in barley crops under temperate conditionsRedução de doses de herbicidas no controle de plantas daninhas em cultivo de cevada sob condições climáticas temperadasLolium rigidum, broad-leaf weeds, no-till farming, crop yieldsYield losses in cereal crops under temperate climate conditions due to weed-crop competition, namely Lolium rigidum G., can reach up to 80%, depending on the season and infestation level. Nevertheless, the costs of chemical weed control and the environmental impact caused by herbicides recommend the search for strategies to reduce their input. Therefore, the aim of this work was to study the possibility of reducing the input of different post-emergence herbicides (diclofop-methyl + fenoxaprop–p-ethyl and amidosulfuron + iodosulfuron-methyl-sodium) to control Lolium rigidum G. and broad-leaf weeds in barley under no-till, and to monitor the effect on weed population levels and crop yields. A field experiment was carried out in 2007-2008 and 2008-2009, in an experimental farm in the south of Portugal, combining different herbicide doses applied at different weed development stages. Results show that, for all herbicide doses, the earlier application provides higher weed control efficacy and higher grain yields, indicating that the reduction of doses is possible while maintaining satisfactory crop grain yields.Universidade Federal de Pernambuco2011-06-24T16:06:11Z2011-06-242011-06-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article64091 bytesapplication/pdfhttp://hdl.handle.net/10174/2707http://hdl.handle.net/10174/2707eng197-2021981-09976Revista Brasileira de Ciências Agrárias2Instituto de Ciências Agrárias e Ambientais Mediterrânicas (ICAAM)jfcb@uevora.ptgb@uevora.ptjcalado@uevora.ptmjc@uevora.ptFerreira, Rinaldo584Barros, JoséBasch, G.Calado, JoséCarvalho, Márioinfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-01-03T18:39:18Zoai:dspace.uevora.pt:10174/2707Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T00:58:19.174356Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Reduced doses of herbicides to control weeds in barley crops under temperate conditions Redução de doses de herbicidas no controle de plantas daninhas em cultivo de cevada sob condições climáticas temperadas |
title |
Reduced doses of herbicides to control weeds in barley crops under temperate conditions |
spellingShingle |
Reduced doses of herbicides to control weeds in barley crops under temperate conditions Barros, José Lolium rigidum, broad-leaf weeds, no-till farming, crop yields |
title_short |
Reduced doses of herbicides to control weeds in barley crops under temperate conditions |
title_full |
Reduced doses of herbicides to control weeds in barley crops under temperate conditions |
title_fullStr |
Reduced doses of herbicides to control weeds in barley crops under temperate conditions |
title_full_unstemmed |
Reduced doses of herbicides to control weeds in barley crops under temperate conditions |
title_sort |
Reduced doses of herbicides to control weeds in barley crops under temperate conditions |
author |
Barros, José |
author_facet |
Barros, José Basch, G. Calado, José Carvalho, Mário |
author_role |
author |
author2 |
Basch, G. Calado, José Carvalho, Mário |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Barros, José Basch, G. Calado, José Carvalho, Mário |
dc.subject.por.fl_str_mv |
Lolium rigidum, broad-leaf weeds, no-till farming, crop yields |
topic |
Lolium rigidum, broad-leaf weeds, no-till farming, crop yields |
description |
Yield losses in cereal crops under temperate climate conditions due to weed-crop competition, namely Lolium rigidum G., can reach up to 80%, depending on the season and infestation level. Nevertheless, the costs of chemical weed control and the environmental impact caused by herbicides recommend the search for strategies to reduce their input. Therefore, the aim of this work was to study the possibility of reducing the input of different post-emergence herbicides (diclofop-methyl + fenoxaprop–p-ethyl and amidosulfuron + iodosulfuron-methyl-sodium) to control Lolium rigidum G. and broad-leaf weeds in barley under no-till, and to monitor the effect on weed population levels and crop yields. A field experiment was carried out in 2007-2008 and 2008-2009, in an experimental farm in the south of Portugal, combining different herbicide doses applied at different weed development stages. Results show that, for all herbicide doses, the earlier application provides higher weed control efficacy and higher grain yields, indicating that the reduction of doses is possible while maintaining satisfactory crop grain yields. |
publishDate |
2011 |
dc.date.none.fl_str_mv |
2011-06-24T16:06:11Z 2011-06-24 2011-06-01T00:00:00Z |
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 |
http://hdl.handle.net/10174/2707 http://hdl.handle.net/10174/2707 |
url |
http://hdl.handle.net/10174/2707 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
197-202 1981-0997 6 Revista Brasileira de Ciências Agrárias 2 Instituto de Ciências Agrárias e Ambientais Mediterrânicas (ICAAM) jfcb@uevora.pt gb@uevora.pt jcalado@uevora.pt mjc@uevora.pt Ferreira, Rinaldo 584 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
64091 bytes application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Federal de Pernambuco |
publisher.none.fl_str_mv |
Universidade Federal de Pernambuco |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
|
_version_ |
1799136466386812928 |