Infestation maps and spatial stability of main weed species in maize culture

Detalhes bibliográficos
Autor(a) principal: Calha,I.M.
Data de Publicação: 2014
Outros Autores: Sousa,E., González-Andújar,J.L.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Planta daninha (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582014000200004
Resumo: A study on the spatial distribution of the major weeds in maize was carried out in 2007 and 2008 in a field located in Golegã (Ribatejo region, Portugal). The geo-referenced sampling focused on 150 points of a 10 x 10 m mesh covering an area of 1.5 ha, before herbicide application and before harvest. In the first year, 40 species (21 botanical families) were identified at seedling stage and only 22 during the last observation. The difference in species richness can be attributed to maize monoculture favouring reduction in species number. Three of the most representative species were selected for the spatial distribution analysis: Solanum nigrum, Chenopodium album and Echinochloa crus-galli. The three species showed an aggregated spatial pattern and spatial stability over both years, although the herbicide effect is evident in the distribution of some of them in the space. These results could be taken into account when planning site-specific treatments in maize.
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spelling Infestation maps and spatial stability of main weed species in maize culturegeo-statisticskrigingprecision agricultureChenopodium albumEchinochloa crus-galliSolanum nigrumA study on the spatial distribution of the major weeds in maize was carried out in 2007 and 2008 in a field located in Golegã (Ribatejo region, Portugal). The geo-referenced sampling focused on 150 points of a 10 x 10 m mesh covering an area of 1.5 ha, before herbicide application and before harvest. In the first year, 40 species (21 botanical families) were identified at seedling stage and only 22 during the last observation. The difference in species richness can be attributed to maize monoculture favouring reduction in species number. Three of the most representative species were selected for the spatial distribution analysis: Solanum nigrum, Chenopodium album and Echinochloa crus-galli. The three species showed an aggregated spatial pattern and spatial stability over both years, although the herbicide effect is evident in the distribution of some of them in the space. These results could be taken into account when planning site-specific treatments in maize.Sociedade Brasileira da Ciência das Plantas Daninhas 2014-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582014000200004Planta Daninha v.32 n.2 2014reponame:Planta daninha (Online)instname:Sociedade Brasileira da Ciência das Plantas Daninhas (SBCPD)instacron:SBCPD10.1590/S0100-83582014000200004info:eu-repo/semantics/openAccessCalha,I.M.Sousa,E.González-Andújar,J.L.eng2014-06-02T00:00:00Zoai:scielo:S0100-83582014000200004Revistahttp://revistas.cpd.ufv.br/pdaninhaweb/https://old.scielo.br/oai/scielo-oai.php||rpdaninha@gmail.com1806-96810100-8358opendoar:2014-06-02T00:00Planta daninha (Online) - Sociedade Brasileira da Ciência das Plantas Daninhas (SBCPD)false
dc.title.none.fl_str_mv Infestation maps and spatial stability of main weed species in maize culture
title Infestation maps and spatial stability of main weed species in maize culture
spellingShingle Infestation maps and spatial stability of main weed species in maize culture
Calha,I.M.
geo-statistics
kriging
precision agriculture
Chenopodium album
Echinochloa crus-galli
Solanum nigrum
title_short Infestation maps and spatial stability of main weed species in maize culture
title_full Infestation maps and spatial stability of main weed species in maize culture
title_fullStr Infestation maps and spatial stability of main weed species in maize culture
title_full_unstemmed Infestation maps and spatial stability of main weed species in maize culture
title_sort Infestation maps and spatial stability of main weed species in maize culture
author Calha,I.M.
author_facet Calha,I.M.
Sousa,E.
González-Andújar,J.L.
author_role author
author2 Sousa,E.
González-Andújar,J.L.
author2_role author
author
dc.contributor.author.fl_str_mv Calha,I.M.
Sousa,E.
González-Andújar,J.L.
dc.subject.por.fl_str_mv geo-statistics
kriging
precision agriculture
Chenopodium album
Echinochloa crus-galli
Solanum nigrum
topic geo-statistics
kriging
precision agriculture
Chenopodium album
Echinochloa crus-galli
Solanum nigrum
description A study on the spatial distribution of the major weeds in maize was carried out in 2007 and 2008 in a field located in Golegã (Ribatejo region, Portugal). The geo-referenced sampling focused on 150 points of a 10 x 10 m mesh covering an area of 1.5 ha, before herbicide application and before harvest. In the first year, 40 species (21 botanical families) were identified at seedling stage and only 22 during the last observation. The difference in species richness can be attributed to maize monoculture favouring reduction in species number. Three of the most representative species were selected for the spatial distribution analysis: Solanum nigrum, Chenopodium album and Echinochloa crus-galli. The three species showed an aggregated spatial pattern and spatial stability over both years, although the herbicide effect is evident in the distribution of some of them in the space. These results could be taken into account when planning site-specific treatments in maize.
publishDate 2014
dc.date.none.fl_str_mv 2014-06-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582014000200004
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582014000200004
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0100-83582014000200004
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Sociedade Brasileira da Ciência das Plantas Daninhas
publisher.none.fl_str_mv Sociedade Brasileira da Ciência das Plantas Daninhas
dc.source.none.fl_str_mv Planta Daninha v.32 n.2 2014
reponame:Planta daninha (Online)
instname:Sociedade Brasileira da Ciência das Plantas Daninhas (SBCPD)
instacron:SBCPD
instname_str Sociedade Brasileira da Ciência das Plantas Daninhas (SBCPD)
instacron_str SBCPD
institution SBCPD
reponame_str Planta daninha (Online)
collection Planta daninha (Online)
repository.name.fl_str_mv Planta daninha (Online) - Sociedade Brasileira da Ciência das Plantas Daninhas (SBCPD)
repository.mail.fl_str_mv ||rpdaninha@gmail.com
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