Effect of water management in soil on weed interference in the onion cultivation system
Autor(a) principal: | |
---|---|
Data de Publicação: | 2019 |
Tipo de documento: | Tese |
Idioma: | por |
Título da fonte: | Repositório Digital da Universidade Federal Rural do Semi-Árido (RDU) |
Texto Completo: | https://repositorio.ufersa.edu.br/handle/prefix/5219 |
Resumo: | Agricultural practices function as an ecological filter of weeds, selecting those more adapted to the agro-system. The characteristics of the weed species and the disturbances promoted by crops shape the weed community, influencing the productive performance of the crops. Among the practices, irrigation can directly affect the establishment of some weed species, and a better-adapted community can intensify the degree of interference on the crop. This study aims to evaluate the changes caused by two irrigation systems (high and low water application rate) in the weed community over three onion crop cultivars (Allium cepa L.), and how these changes affect productivity, water use and system interference period. The γ, α, β-diversity were altered by onion cultivation over the three years of cultivation. The system with higher water supply (micro-sprinkler) favored the diversity and weed richness, mainly in the second year of cultivation compared to the system with water restriction (drip). The dominant weed species in the first crop cycle changed compared to the last cycle for both irrigation systems. The change in the weed community between the years of cultivation affected the commercial bulb productivity and water use efficiency of onion cultivated under drip and micro-sprinkler. For drip irrigated onion crops, the reduction in water use efficiency is even more drastic. The relative yield of the onion was influenced by the duration of the coexistence period or weed free, irrespective of the irrigation systems. Growing periods of weed interference significantly reduced onion production in all years. In the drip system, the critical period of prevention (PCPI) ranged from 25 to 36 DAE in 2016, 12 to 28 DAE in 2017 and 16 to 89 DAE in 2018 based on the 5% level of acceptable yield loss. In the micro-sprinkler system the PCPI ranged from 06 to 24 DAE in 2016, 10 to 62 DAE in 2017 and 24 to 65 DAE in 2018. The duration of the PCPI depends on the irrigation system used and the composition of the weed community. Irrigation systems influence the beginning and end of PCPI. Weeds reduce the sustainability of the irrigated onion cultivation system when they are not controlled |
id |
UFER_838cc5825aed65d53027fcaa8e074215 |
---|---|
oai_identifier_str |
oai:repositorio.ufersa.edu.br:prefix/5219 |
network_acronym_str |
UFER |
network_name_str |
Repositório Digital da Universidade Federal Rural do Semi-Árido (RDU) |
repository_id_str |
|
spelling |
Effect of water management in soil on weed interference in the onion cultivation systemDominânciaDripInterferênciaMicro-sprinklerDominanceDripInterferencemicro-sprinklerCIENCIAS AGRARIAS::AGRONOMIA::FITOTECNIAAgricultural practices function as an ecological filter of weeds, selecting those more adapted to the agro-system. The characteristics of the weed species and the disturbances promoted by crops shape the weed community, influencing the productive performance of the crops. Among the practices, irrigation can directly affect the establishment of some weed species, and a better-adapted community can intensify the degree of interference on the crop. This study aims to evaluate the changes caused by two irrigation systems (high and low water application rate) in the weed community over three onion crop cultivars (Allium cepa L.), and how these changes affect productivity, water use and system interference period. The γ, α, β-diversity were altered by onion cultivation over the three years of cultivation. The system with higher water supply (micro-sprinkler) favored the diversity and weed richness, mainly in the second year of cultivation compared to the system with water restriction (drip). The dominant weed species in the first crop cycle changed compared to the last cycle for both irrigation systems. The change in the weed community between the years of cultivation affected the commercial bulb productivity and water use efficiency of onion cultivated under drip and micro-sprinkler. For drip irrigated onion crops, the reduction in water use efficiency is even more drastic. The relative yield of the onion was influenced by the duration of the coexistence period or weed free, irrespective of the irrigation systems. Growing periods of weed interference significantly reduced onion production in all years. In the drip system, the critical period of prevention (PCPI) ranged from 25 to 36 DAE in 2016, 12 to 28 DAE in 2017 and 16 to 89 DAE in 2018 based on the 5% level of acceptable yield loss. In the micro-sprinkler system the PCPI ranged from 06 to 24 DAE in 2016, 10 to 62 DAE in 2017 and 24 to 65 DAE in 2018. The duration of the PCPI depends on the irrigation system used and the composition of the weed community. Irrigation systems influence the beginning and end of PCPI. Weeds reduce the sustainability of the irrigated onion cultivation system when they are not controlledPráticas agrícolas funcionam como filtro ecológico de Weeds, selecionando aquelas mais adaptadas ao agrossistema. As características das espécies infestantes e as perturbações promovidas por cultivos moldam a comunidade de Weeds, influenciando o desempenho produtivo das culturas. Dentre as práticas, a irrigação pode afetar diretamente o estabelecimento de algumas espécies de Weeds, e uma comunidade melhor adaptada pode intensificar o grau de interferência sobre a cultura. Este estudo tem como objetivos avaliar as alterações provocadas por dois sistemas de irrigação (Micro-sprinkler - alta e Drip - baixa taxa de aplicação de água) na comunidade de Weeds ao longo de três safras de cultivo da cebola (Allium cepa L.), e como essas mudanças afetam a produtividade, uso da água e período de interferência dos sistemas. A γ, α, β-diversidade foram alteradas pelo cultivo de cebola ao longo dos três anos de cultivo. O sistema com maior suprimento de água (Micro-sprinkler) favoreceu a diversidade e riqueza de Weeds, principalmente no segundo ano de cultivo comparado ao sistema com restrição hídrica (Drip). A espécie de planta daninha dominante no primeiro ciclo de cultivo mudou comparado ao último ciclo para os dois sistemas de irrigação. A mudança na comunidade de Weeds entre os anos de cultivo afetou a produtividade de bulbos comerciais e eficiência no uso da água (EUA) da cebola cultivada sob Drip e Micro-sprinkler. Para cultivos de cebola irrigados por Drip, a redução na eficiência no uso da água foi ainda mais drástica. O rendimento relativo da cebola foi influenciado pela duração do período em convivência com as Weeds, independentemente dos sistemas de irrigação. Períodos crescentes de interferência de Weeds reduziram significativamente a produção de cebola em todos os anos. No sistema de Drip, o período crítico de prevenção (PCPI) variou de 25 a 36 DAE em 2016, 12 a 28 DAE em 2017 e 16 a 89 DAE em 2018 com base no nível de 5% de perda de rendimento aceitável. No sistema de Micro-sprinkler o PCPI variou de 06 a 24 DAE em 2016, 10 a 62 DAE em 2017 e 24 a 65 DAE em 2018. A duração do PCPI depende do sistema de irrigação utilizado e da composição da comunidade infestante em cada ano-safra. Os sistemas de irrigação influenciam o início e o fim do PCPI. Weeds reduzem a sustentabilidade do sistema de cultivo da cebola irrigada quando elas não são controladasCoordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPESUniversidade Federal Rural do Semi-ÁridoBrasilCentro de Ciências Agrárias - CCAUFERSAPrograma de Pós-Graduação em FitotecniaGrangeiro, Leilson Costa02108750460http://lattes.cnpq.br/1788174638876714Silva, Daniel Valadão07015867613http://lattes.cnpq.br/2100406454919685Santos, José Barbosa dos00749457694http://lattes.cnpq.br/1948250121809916Medeiros, José Francismar de27348636420http://lattes.cnpq.br/9567732690904131Reis, Marcelo Rodrigues dos03636885600http://lattes.cnpq.br/0097748956151136Souza, Matheus de Freitas2020-08-03T18:30:45Z2019-08-082020-08-03T18:30:45Z2019-04-09info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/doctoralThesisapplication/pdfCitação com autor incluído no texto: Souza (2019) Citação com autor não incluído no texto: (SOUZA, 2019)https://repositorio.ufersa.edu.br/handle/prefix/5219porSOUZA, Matheus de Freitas. Effect of water management in soil on weed interference in the onion cultivation system. 2019. 91 f. Tese (Doutorado em Fitotecnia), Universidade Federal Rural do Semi-Árido, Mossoró, 2019.CC-BY-SAinfo:eu-repo/semantics/openAccessreponame:Repositório Digital da Universidade Federal Rural do Semi-Árido (RDU)instname:Universidade Federal Rural do Semi-Árido (UFERSA)instacron:UFERSA2023-12-12T23:05:42Zoai:repositorio.ufersa.edu.br:prefix/5219Repositório Institucionalhttps://repositorio.ufersa.edu.br/PUBhttps://repositorio.ufersa.edu.br/server/oai/requestrepositorio@ufersa.edu.br || admrepositorio@ufersa.edu.bropendoar:2023-12-12T23:05:42Repositório Digital da Universidade Federal Rural do Semi-Árido (RDU) - Universidade Federal Rural do Semi-Árido (UFERSA)false |
dc.title.none.fl_str_mv |
Effect of water management in soil on weed interference in the onion cultivation system |
title |
Effect of water management in soil on weed interference in the onion cultivation system |
spellingShingle |
Effect of water management in soil on weed interference in the onion cultivation system Souza, Matheus de Freitas Dominância Drip Interferência Micro-sprinkler Dominance Drip Interference micro-sprinkler CIENCIAS AGRARIAS::AGRONOMIA::FITOTECNIA |
title_short |
Effect of water management in soil on weed interference in the onion cultivation system |
title_full |
Effect of water management in soil on weed interference in the onion cultivation system |
title_fullStr |
Effect of water management in soil on weed interference in the onion cultivation system |
title_full_unstemmed |
Effect of water management in soil on weed interference in the onion cultivation system |
title_sort |
Effect of water management in soil on weed interference in the onion cultivation system |
author |
Souza, Matheus de Freitas |
author_facet |
Souza, Matheus de Freitas |
author_role |
author |
dc.contributor.none.fl_str_mv |
Grangeiro, Leilson Costa 02108750460 http://lattes.cnpq.br/1788174638876714 Silva, Daniel Valadão 07015867613 http://lattes.cnpq.br/2100406454919685 Santos, José Barbosa dos 00749457694 http://lattes.cnpq.br/1948250121809916 Medeiros, José Francismar de 27348636420 http://lattes.cnpq.br/9567732690904131 Reis, Marcelo Rodrigues dos 03636885600 http://lattes.cnpq.br/0097748956151136 |
dc.contributor.author.fl_str_mv |
Souza, Matheus de Freitas |
dc.subject.por.fl_str_mv |
Dominância Drip Interferência Micro-sprinkler Dominance Drip Interference micro-sprinkler CIENCIAS AGRARIAS::AGRONOMIA::FITOTECNIA |
topic |
Dominância Drip Interferência Micro-sprinkler Dominance Drip Interference micro-sprinkler CIENCIAS AGRARIAS::AGRONOMIA::FITOTECNIA |
description |
Agricultural practices function as an ecological filter of weeds, selecting those more adapted to the agro-system. The characteristics of the weed species and the disturbances promoted by crops shape the weed community, influencing the productive performance of the crops. Among the practices, irrigation can directly affect the establishment of some weed species, and a better-adapted community can intensify the degree of interference on the crop. This study aims to evaluate the changes caused by two irrigation systems (high and low water application rate) in the weed community over three onion crop cultivars (Allium cepa L.), and how these changes affect productivity, water use and system interference period. The γ, α, β-diversity were altered by onion cultivation over the three years of cultivation. The system with higher water supply (micro-sprinkler) favored the diversity and weed richness, mainly in the second year of cultivation compared to the system with water restriction (drip). The dominant weed species in the first crop cycle changed compared to the last cycle for both irrigation systems. The change in the weed community between the years of cultivation affected the commercial bulb productivity and water use efficiency of onion cultivated under drip and micro-sprinkler. For drip irrigated onion crops, the reduction in water use efficiency is even more drastic. The relative yield of the onion was influenced by the duration of the coexistence period or weed free, irrespective of the irrigation systems. Growing periods of weed interference significantly reduced onion production in all years. In the drip system, the critical period of prevention (PCPI) ranged from 25 to 36 DAE in 2016, 12 to 28 DAE in 2017 and 16 to 89 DAE in 2018 based on the 5% level of acceptable yield loss. In the micro-sprinkler system the PCPI ranged from 06 to 24 DAE in 2016, 10 to 62 DAE in 2017 and 24 to 65 DAE in 2018. The duration of the PCPI depends on the irrigation system used and the composition of the weed community. Irrigation systems influence the beginning and end of PCPI. Weeds reduce the sustainability of the irrigated onion cultivation system when they are not controlled |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-08-08 2019-04-09 2020-08-03T18:30:45Z 2020-08-03T18:30:45Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/doctoralThesis |
format |
doctoralThesis |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
Citação com autor incluído no texto: Souza (2019) Citação com autor não incluído no texto: (SOUZA, 2019) https://repositorio.ufersa.edu.br/handle/prefix/5219 |
identifier_str_mv |
Citação com autor incluído no texto: Souza (2019) Citação com autor não incluído no texto: (SOUZA, 2019) |
url |
https://repositorio.ufersa.edu.br/handle/prefix/5219 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
SOUZA, Matheus de Freitas. Effect of water management in soil on weed interference in the onion cultivation system. 2019. 91 f. Tese (Doutorado em Fitotecnia), Universidade Federal Rural do Semi-Árido, Mossoró, 2019. |
dc.rights.driver.fl_str_mv |
CC-BY-SA info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
CC-BY-SA |
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 Brasil Centro de Ciências Agrárias - CCA UFERSA Programa de Pós-Graduação em Fitotecnia |
publisher.none.fl_str_mv |
Universidade Federal Rural do Semi-Árido Brasil Centro de Ciências Agrárias - CCA UFERSA Programa de Pós-Graduação em Fitotecnia |
dc.source.none.fl_str_mv |
reponame:Repositório Digital da Universidade Federal Rural do Semi-Árido (RDU) 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 |
Repositório Digital da Universidade Federal Rural do Semi-Árido (RDU) |
collection |
Repositório Digital da Universidade Federal Rural do Semi-Árido (RDU) |
repository.name.fl_str_mv |
Repositório Digital da Universidade Federal Rural do Semi-Árido (RDU) - Universidade Federal Rural do Semi-Árido (UFERSA) |
repository.mail.fl_str_mv |
repositorio@ufersa.edu.br || admrepositorio@ufersa.edu.br |
_version_ |
1809747459184787456 |