WEED INTERFERENCE IN CARROT YIELD IN TWO LOCALIZED IRRIGATION SYSTEMS
Autor(a) principal: | |
---|---|
Data de Publicação: | 2021 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Revista Caatinga |
Texto Completo: | https://periodicos.ufersa.edu.br/caatinga/article/view/10006 |
Resumo: | Weed interference is one of the factors that reduces carrot yield considerably. The aim of this study was to determine the periods of weed interference in carrots cultivated under two localized irrigation systems. The experiment used a completely randomized block design, with three replications, using the split plot scheme. The plots consisted of two irrigation systems (drip and micro sprinkler) and the subplots corresponded to the duration of coexistence of the crop with weeds, comprising periods of control (weed-free) or coexistence (with weeds) (0, 10, 20, 30, 40, 50, and 120 days after emergence (DAE) of the crop). Considering a yield loss of 2.5%, 5%, and 10% in marketable carrots, the beginning and end of the critical period of weed control (CPWC) was determined by adjusting a sigmoid model to the relative production data. The presence of the weed community throughout the crop cycle resulted in yield losses of up to 98%. The CPWP varied for the irrigation systems used. Carrot cultivation with and without competition, under the micro sprinkler irrigation system showed a higher yield than with the drip system. Considering a yield loss of 5%, the CPWC was 23 DAE and 7 DAE in the drip irrigation and micro sprinkler irrigation systems, respectively. |
id |
UFERSA-1_65ada3682f123dce2d6f7ca919e203ec |
---|---|
oai_identifier_str |
oai:ojs.periodicos.ufersa.edu.br:article/10006 |
network_acronym_str |
UFERSA-1 |
network_name_str |
Revista Caatinga |
repository_id_str |
|
spelling |
WEED INTERFERENCE IN CARROT YIELD IN TWO LOCALIZED IRRIGATION SYSTEMSINTERFERÊNCIA DE PLANTAS DANINHAS NA PRODUTIVIDADE DA CENOURA EM DOIS SISTEMAS DE IRRIGAÇÃO LOCALIZADADaucus carota L. Competição. Período de interferência. Gotejamento. Microaspersão.Daucus carota L. Competition. Interference period. Drip. Micro sprinkler.Weed interference is one of the factors that reduces carrot yield considerably. The aim of this study was to determine the periods of weed interference in carrots cultivated under two localized irrigation systems. The experiment used a completely randomized block design, with three replications, using the split plot scheme. The plots consisted of two irrigation systems (drip and micro sprinkler) and the subplots corresponded to the duration of coexistence of the crop with weeds, comprising periods of control (weed-free) or coexistence (with weeds) (0, 10, 20, 30, 40, 50, and 120 days after emergence (DAE) of the crop). Considering a yield loss of 2.5%, 5%, and 10% in marketable carrots, the beginning and end of the critical period of weed control (CPWC) was determined by adjusting a sigmoid model to the relative production data. The presence of the weed community throughout the crop cycle resulted in yield losses of up to 98%. The CPWP varied for the irrigation systems used. Carrot cultivation with and without competition, under the micro sprinkler irrigation system showed a higher yield than with the drip system. Considering a yield loss of 5%, the CPWC was 23 DAE and 7 DAE in the drip irrigation and micro sprinkler irrigation systems, respectively.A interferência de plantas daninhas representa um dos fatores de maior impacto na redução da produtividade na cultura da cenoura. O objetivo deste estudo foi determinar os períodos de interferência de plantas daninhas na cenoura em dois sistemas de irrigação localizada. O delineamento experimental utilizado foi o de blocos casualizados, com três repetições, no esquema de parcelas subdivididas. As parcelas foram constituídas dos dois sistemas de irrigação (gotejamento e microaspersão), e as subparcelas corresponderam à duração da convivência com as plantas daninhas, constituídos de períodos de controle (no limpo) ou convivência (no mato) das plantas daninhas com a cultura (0, 10, 20, 30, 40, 50 e 120 dias após a emergência (DAE)). O início e o fim do período crítico de prevenção a interferência (PCPI), com base em uma perda de produtividade de 2,5, 5 e 10 % de cenoura comercializável, foi determinado pelo ajuste do modelo Sigmoide aos dados de produção relativa. A presença da comunidade de plantas daninhas durante todo o ciclo da cultura pode acarretar perdas de até 98% na produtividade. O PCPI variou em 16 dias entre os sistemas de irrigação utilizados. O cultivo da cenoura com e sem competição, sob o sistema de irrigação por microaspersão apresentou maior produtividade em comparação ao cultivo no sistema de gotejamento. No sistema de irrigação por gotejamento o PCPI foi de 23 DAE e no sistema de irrigação por microaspersão foi de 7 DAE, considerando perdas de produtividade de 5 %.Universidade Federal Rural do Semi-Árido2021-03-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.ufersa.edu.br/caatinga/article/view/1000610.1590/1983-21252021v34n113rcREVISTA CAATINGA; Vol. 34 No. 1 (2021); 119-131Revista Caatinga; v. 34 n. 1 (2021); 119-1311983-21250100-316Xreponame:Revista Caatingainstname:Universidade Federal Rural do Semi-Árido (UFERSA)instacron:UFERSAenghttps://periodicos.ufersa.edu.br/caatinga/article/view/10006/10563Copyright (c) 2021 Revista Caatingainfo:eu-repo/semantics/openAccessReginaldo, Laís Tereza Rêgo TorquatoLins, Hamurábi AnizioSousa, Matheus de FreitasTeófilo, Taliane Maria da SilvaMendonça, VanderSilva, Daniel Valadão2023-07-19T12:30:30Zoai:ojs.periodicos.ufersa.edu.br:article/10006Revistahttps://periodicos.ufersa.edu.br/index.php/caatinga/indexPUBhttps://periodicos.ufersa.edu.br/index.php/caatinga/oaipatricio@ufersa.edu.br|| caatinga@ufersa.edu.br1983-21250100-316Xopendoar:2024-04-29T09:46:54.677059Revista Caatinga - Universidade Federal Rural do Semi-Árido (UFERSA)true |
dc.title.none.fl_str_mv |
WEED INTERFERENCE IN CARROT YIELD IN TWO LOCALIZED IRRIGATION SYSTEMS INTERFERÊNCIA DE PLANTAS DANINHAS NA PRODUTIVIDADE DA CENOURA EM DOIS SISTEMAS DE IRRIGAÇÃO LOCALIZADA |
title |
WEED INTERFERENCE IN CARROT YIELD IN TWO LOCALIZED IRRIGATION SYSTEMS |
spellingShingle |
WEED INTERFERENCE IN CARROT YIELD IN TWO LOCALIZED IRRIGATION SYSTEMS Reginaldo, Laís Tereza Rêgo Torquato Daucus carota L. Competição. Período de interferência. Gotejamento. Microaspersão. Daucus carota L. Competition. Interference period. Drip. Micro sprinkler. |
title_short |
WEED INTERFERENCE IN CARROT YIELD IN TWO LOCALIZED IRRIGATION SYSTEMS |
title_full |
WEED INTERFERENCE IN CARROT YIELD IN TWO LOCALIZED IRRIGATION SYSTEMS |
title_fullStr |
WEED INTERFERENCE IN CARROT YIELD IN TWO LOCALIZED IRRIGATION SYSTEMS |
title_full_unstemmed |
WEED INTERFERENCE IN CARROT YIELD IN TWO LOCALIZED IRRIGATION SYSTEMS |
title_sort |
WEED INTERFERENCE IN CARROT YIELD IN TWO LOCALIZED IRRIGATION SYSTEMS |
author |
Reginaldo, Laís Tereza Rêgo Torquato |
author_facet |
Reginaldo, Laís Tereza Rêgo Torquato Lins, Hamurábi Anizio Sousa, Matheus de Freitas Teófilo, Taliane Maria da Silva Mendonça, Vander Silva, Daniel Valadão |
author_role |
author |
author2 |
Lins, Hamurábi Anizio Sousa, Matheus de Freitas Teófilo, Taliane Maria da Silva Mendonça, Vander Silva, Daniel Valadão |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Reginaldo, Laís Tereza Rêgo Torquato Lins, Hamurábi Anizio Sousa, Matheus de Freitas Teófilo, Taliane Maria da Silva Mendonça, Vander Silva, Daniel Valadão |
dc.subject.por.fl_str_mv |
Daucus carota L. Competição. Período de interferência. Gotejamento. Microaspersão. Daucus carota L. Competition. Interference period. Drip. Micro sprinkler. |
topic |
Daucus carota L. Competição. Período de interferência. Gotejamento. Microaspersão. Daucus carota L. Competition. Interference period. Drip. Micro sprinkler. |
description |
Weed interference is one of the factors that reduces carrot yield considerably. The aim of this study was to determine the periods of weed interference in carrots cultivated under two localized irrigation systems. The experiment used a completely randomized block design, with three replications, using the split plot scheme. The plots consisted of two irrigation systems (drip and micro sprinkler) and the subplots corresponded to the duration of coexistence of the crop with weeds, comprising periods of control (weed-free) or coexistence (with weeds) (0, 10, 20, 30, 40, 50, and 120 days after emergence (DAE) of the crop). Considering a yield loss of 2.5%, 5%, and 10% in marketable carrots, the beginning and end of the critical period of weed control (CPWC) was determined by adjusting a sigmoid model to the relative production data. The presence of the weed community throughout the crop cycle resulted in yield losses of up to 98%. The CPWP varied for the irrigation systems used. Carrot cultivation with and without competition, under the micro sprinkler irrigation system showed a higher yield than with the drip system. Considering a yield loss of 5%, the CPWC was 23 DAE and 7 DAE in the drip irrigation and micro sprinkler irrigation systems, respectively. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-03-03 |
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://periodicos.ufersa.edu.br/caatinga/article/view/10006 10.1590/1983-21252021v34n113rc |
url |
https://periodicos.ufersa.edu.br/caatinga/article/view/10006 |
identifier_str_mv |
10.1590/1983-21252021v34n113rc |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://periodicos.ufersa.edu.br/caatinga/article/view/10006/10563 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2021 Revista Caatinga info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2021 Revista Caatinga |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Federal Rural do Semi-Árido |
publisher.none.fl_str_mv |
Universidade Federal Rural do Semi-Árido |
dc.source.none.fl_str_mv |
REVISTA CAATINGA; Vol. 34 No. 1 (2021); 119-131 Revista Caatinga; v. 34 n. 1 (2021); 119-131 1983-2125 0100-316X reponame:Revista Caatinga instname:Universidade Federal Rural do Semi-Árido (UFERSA) instacron:UFERSA |
instname_str |
Universidade Federal Rural do Semi-Árido (UFERSA) |
instacron_str |
UFERSA |
institution |
UFERSA |
reponame_str |
Revista Caatinga |
collection |
Revista Caatinga |
repository.name.fl_str_mv |
Revista Caatinga - Universidade Federal Rural do Semi-Árido (UFERSA) |
repository.mail.fl_str_mv |
patricio@ufersa.edu.br|| caatinga@ufersa.edu.br |
_version_ |
1797674029391282176 |