Crop management and its effects on weed occurrences
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Bioscience journal (Online) |
Texto Completo: | https://seer.ufu.br/index.php/biosciencejournal/article/view/48271 |
Resumo: | The objective was to evaluate weed phytosociology and similarities between crop management systems in the Chapadões region. The experiment was conducted at in agricultural area located in the municipality of Chapadão do Sul, MS, during the 2016/17 harvest. Three crop managements strategies were used: (1) cotton/soybean/Urochloa, (2) millet/soybean/millet and (3) millet/soybean/crotalaria. A phytosociological survey of weeds was carried out during soybean cultivation and cover crops growth, in succession. The evaluation area for each management strategy was 0.5 ha. Soybean surveys were carried out in October and January, while the cover crop surveys were performed in February and May. The relative frequency (RF), relative density (RD), relative abundance (AR), and relative importance (RI) of weeds, Venn diagram, and Jaccard and Sorenson similarity indices were evaluated. The management area represented by the cotton/soybean/Urochloa rotation had fewer weed species than others. The species Cenchrus echinatus, Digitaria insularis, Digitaria sanguinalis, Eleusine indica and Commelina benghalensis had the highest phytosociological indeces among the monocotyledons. Attention is required for managing the dicotyledons Amaranthus deflexus, Conyza canadensis and Senna obtusifolia despite their low indices because of herbicide resistant cases. The highest indeces of similarity were found between managements areas 2 and 3, which did not rely on cotton cultivation prior to soybeans. |
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Crop management and its effects on weed occurrencesGermination FlowMonocotyledonsPhytosociologySeed BankAgronomyThe objective was to evaluate weed phytosociology and similarities between crop management systems in the Chapadões region. The experiment was conducted at in agricultural area located in the municipality of Chapadão do Sul, MS, during the 2016/17 harvest. Three crop managements strategies were used: (1) cotton/soybean/Urochloa, (2) millet/soybean/millet and (3) millet/soybean/crotalaria. A phytosociological survey of weeds was carried out during soybean cultivation and cover crops growth, in succession. The evaluation area for each management strategy was 0.5 ha. Soybean surveys were carried out in October and January, while the cover crop surveys were performed in February and May. The relative frequency (RF), relative density (RD), relative abundance (AR), and relative importance (RI) of weeds, Venn diagram, and Jaccard and Sorenson similarity indices were evaluated. The management area represented by the cotton/soybean/Urochloa rotation had fewer weed species than others. The species Cenchrus echinatus, Digitaria insularis, Digitaria sanguinalis, Eleusine indica and Commelina benghalensis had the highest phytosociological indeces among the monocotyledons. Attention is required for managing the dicotyledons Amaranthus deflexus, Conyza canadensis and Senna obtusifolia despite their low indices because of herbicide resistant cases. The highest indeces of similarity were found between managements areas 2 and 3, which did not rely on cotton cultivation prior to soybeans.EDUFU2021-01-28info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.ufu.br/index.php/biosciencejournal/article/view/4827110.14393/BJ-v37n0a2021-48271Bioscience Journal ; Vol. 37 (2021): Continuous Publication; e37012Bioscience Journal ; v. 37 (2021): Continuous Publication; e370121981-3163reponame:Bioscience journal (Online)instname:Universidade Federal de Uberlândia (UFU)instacron:UFUenghttps://seer.ufu.br/index.php/biosciencejournal/article/view/48271/30906Brazil; ContemporaryCopyright (c) 2021 Marco Aurelio Castro, Sebastião Ferreira de Lima, Germison Vital Tomquelski, Maria Gabriela Oliveira de Andrade, Jordana Dias Martinshttps://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessCastro, Marco AurelioLima, Sebastião Ferreira deTomquelski, Germison VitalAndrade, Maria Gabriela Oliveira deMartins, Jordana Dias2022-05-25T11:43:32Zoai:ojs.www.seer.ufu.br:article/48271Revistahttps://seer.ufu.br/index.php/biosciencejournalPUBhttps://seer.ufu.br/index.php/biosciencejournal/oaibiosciencej@ufu.br||1981-31631516-3725opendoar:2022-05-25T11:43:32Bioscience journal (Online) - Universidade Federal de Uberlândia (UFU)false |
dc.title.none.fl_str_mv |
Crop management and its effects on weed occurrences |
title |
Crop management and its effects on weed occurrences |
spellingShingle |
Crop management and its effects on weed occurrences Castro, Marco Aurelio Germination Flow Monocotyledons Phytosociology Seed Bank Agronomy |
title_short |
Crop management and its effects on weed occurrences |
title_full |
Crop management and its effects on weed occurrences |
title_fullStr |
Crop management and its effects on weed occurrences |
title_full_unstemmed |
Crop management and its effects on weed occurrences |
title_sort |
Crop management and its effects on weed occurrences |
author |
Castro, Marco Aurelio |
author_facet |
Castro, Marco Aurelio Lima, Sebastião Ferreira de Tomquelski, Germison Vital Andrade, Maria Gabriela Oliveira de Martins, Jordana Dias |
author_role |
author |
author2 |
Lima, Sebastião Ferreira de Tomquelski, Germison Vital Andrade, Maria Gabriela Oliveira de Martins, Jordana Dias |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Castro, Marco Aurelio Lima, Sebastião Ferreira de Tomquelski, Germison Vital Andrade, Maria Gabriela Oliveira de Martins, Jordana Dias |
dc.subject.por.fl_str_mv |
Germination Flow Monocotyledons Phytosociology Seed Bank Agronomy |
topic |
Germination Flow Monocotyledons Phytosociology Seed Bank Agronomy |
description |
The objective was to evaluate weed phytosociology and similarities between crop management systems in the Chapadões region. The experiment was conducted at in agricultural area located in the municipality of Chapadão do Sul, MS, during the 2016/17 harvest. Three crop managements strategies were used: (1) cotton/soybean/Urochloa, (2) millet/soybean/millet and (3) millet/soybean/crotalaria. A phytosociological survey of weeds was carried out during soybean cultivation and cover crops growth, in succession. The evaluation area for each management strategy was 0.5 ha. Soybean surveys were carried out in October and January, while the cover crop surveys were performed in February and May. The relative frequency (RF), relative density (RD), relative abundance (AR), and relative importance (RI) of weeds, Venn diagram, and Jaccard and Sorenson similarity indices were evaluated. The management area represented by the cotton/soybean/Urochloa rotation had fewer weed species than others. The species Cenchrus echinatus, Digitaria insularis, Digitaria sanguinalis, Eleusine indica and Commelina benghalensis had the highest phytosociological indeces among the monocotyledons. Attention is required for managing the dicotyledons Amaranthus deflexus, Conyza canadensis and Senna obtusifolia despite their low indices because of herbicide resistant cases. The highest indeces of similarity were found between managements areas 2 and 3, which did not rely on cotton cultivation prior to soybeans. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-01-28 |
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.ufu.br/index.php/biosciencejournal/article/view/48271 10.14393/BJ-v37n0a2021-48271 |
url |
https://seer.ufu.br/index.php/biosciencejournal/article/view/48271 |
identifier_str_mv |
10.14393/BJ-v37n0a2021-48271 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://seer.ufu.br/index.php/biosciencejournal/article/view/48271/30906 |
dc.rights.driver.fl_str_mv |
https://creativecommons.org/licenses/by/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by/4.0 |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.coverage.none.fl_str_mv |
Brazil; Contemporary |
dc.publisher.none.fl_str_mv |
EDUFU |
publisher.none.fl_str_mv |
EDUFU |
dc.source.none.fl_str_mv |
Bioscience Journal ; Vol. 37 (2021): Continuous Publication; e37012 Bioscience Journal ; v. 37 (2021): Continuous Publication; e37012 1981-3163 reponame:Bioscience journal (Online) instname:Universidade Federal de Uberlândia (UFU) instacron:UFU |
instname_str |
Universidade Federal de Uberlândia (UFU) |
instacron_str |
UFU |
institution |
UFU |
reponame_str |
Bioscience journal (Online) |
collection |
Bioscience journal (Online) |
repository.name.fl_str_mv |
Bioscience journal (Online) - Universidade Federal de Uberlândia (UFU) |
repository.mail.fl_str_mv |
biosciencej@ufu.br|| |
_version_ |
1797069081920143360 |