Influence of corn sowing density and gliricidia intercropping on weed control

Detalhes bibliográficos
Autor(a) principal: Silva,P.S.L.
Data de Publicação: 2010
Outros Autores: Souza,A.D., Paula,V.F.S., Oliveira,F.H.T., Silva,K.M.B.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Planta daninha (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582010000200006
Resumo: There is interest in the identification of the best seeding density for new corn hybrids and on reduced use of herbicides for weed control. The objective of this study was to evaluate the effects of seeding density (30, 50, 70, and 90 thousand plants ha-1) and weed control on green ear yield and grain yield in corn cultivar AG 1051. A completely randomized block design was adopted with split-plots (seeding densities assigned to plots) and ten replicates. Weed control was achieved by means of two hoeings and by planting corn intercropped with gliricidia (between corn rows, in pits spaced 0.3 m apart). A "no weeding"treatment was included as well. Increased seeding density increased the total number and weight of marketable green ears and decreased the biomass of both weeds and gliricidia. In non-weeded, intercropped and hoed plots, the maximum grain yield values achieved as seeding density increased were 7,881, 7,021, and 9,213 kg ha-1, respectively, obtained with populations of 67 thousand, 74 thousand, and 67 thousand plants per hectare, respectively. Intercropping did not control weeds (26 species) and provided weed growth, green ear yield, and grain yield (at the lowest densities) similar to those obtained without hoeing, except for total number of green ears, in which no influence of weed control was observed. At densities of 70 thousand and 90 thousand plants per hectare, grain yield with two hoeings was not different from yield values obtained without weeding or in the treatment intercropped with gliricidia, respectively, indicating that increased corn seeding density as well as gliricidiamay help to control weeds.
id SBCPD-1_d9f44d3c150963021ec31160b46fcb93
oai_identifier_str oai:scielo:S0100-83582010000200006
network_acronym_str SBCPD-1
network_name_str Planta daninha (Online)
repository_id_str
spelling Influence of corn sowing density and gliricidia intercropping on weed controlZea maysGliricidiasepiumgreen corngrain yieldhoeingThere is interest in the identification of the best seeding density for new corn hybrids and on reduced use of herbicides for weed control. The objective of this study was to evaluate the effects of seeding density (30, 50, 70, and 90 thousand plants ha-1) and weed control on green ear yield and grain yield in corn cultivar AG 1051. A completely randomized block design was adopted with split-plots (seeding densities assigned to plots) and ten replicates. Weed control was achieved by means of two hoeings and by planting corn intercropped with gliricidia (between corn rows, in pits spaced 0.3 m apart). A "no weeding"treatment was included as well. Increased seeding density increased the total number and weight of marketable green ears and decreased the biomass of both weeds and gliricidia. In non-weeded, intercropped and hoed plots, the maximum grain yield values achieved as seeding density increased were 7,881, 7,021, and 9,213 kg ha-1, respectively, obtained with populations of 67 thousand, 74 thousand, and 67 thousand plants per hectare, respectively. Intercropping did not control weeds (26 species) and provided weed growth, green ear yield, and grain yield (at the lowest densities) similar to those obtained without hoeing, except for total number of green ears, in which no influence of weed control was observed. At densities of 70 thousand and 90 thousand plants per hectare, grain yield with two hoeings was not different from yield values obtained without weeding or in the treatment intercropped with gliricidia, respectively, indicating that increased corn seeding density as well as gliricidiamay help to control weeds.Sociedade Brasileira da Ciência das Plantas Daninhas 2010-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582010000200006Planta Daninha v.28 n.2 2010reponame:Planta daninha (Online)instname:Sociedade Brasileira da Ciência das Plantas Daninhas (SBCPD)instacron:SBCPD10.1590/S0100-83582010000200006info:eu-repo/semantics/openAccessSilva,P.S.L.Souza,A.D.Paula,V.F.S.Oliveira,F.H.T.Silva,K.M.B.eng2010-07-15T00:00:00Zoai:scielo:S0100-83582010000200006Revistahttp://revistas.cpd.ufv.br/pdaninhaweb/https://old.scielo.br/oai/scielo-oai.php||rpdaninha@gmail.com1806-96810100-8358opendoar:2010-07-15T00:00Planta daninha (Online) - Sociedade Brasileira da Ciência das Plantas Daninhas (SBCPD)false
dc.title.none.fl_str_mv Influence of corn sowing density and gliricidia intercropping on weed control
title Influence of corn sowing density and gliricidia intercropping on weed control
spellingShingle Influence of corn sowing density and gliricidia intercropping on weed control
Silva,P.S.L.
Zea mays
Gliricidiasepium
green corn
grain yield
hoeing
title_short Influence of corn sowing density and gliricidia intercropping on weed control
title_full Influence of corn sowing density and gliricidia intercropping on weed control
title_fullStr Influence of corn sowing density and gliricidia intercropping on weed control
title_full_unstemmed Influence of corn sowing density and gliricidia intercropping on weed control
title_sort Influence of corn sowing density and gliricidia intercropping on weed control
author Silva,P.S.L.
author_facet Silva,P.S.L.
Souza,A.D.
Paula,V.F.S.
Oliveira,F.H.T.
Silva,K.M.B.
author_role author
author2 Souza,A.D.
Paula,V.F.S.
Oliveira,F.H.T.
Silva,K.M.B.
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Silva,P.S.L.
Souza,A.D.
Paula,V.F.S.
Oliveira,F.H.T.
Silva,K.M.B.
dc.subject.por.fl_str_mv Zea mays
Gliricidiasepium
green corn
grain yield
hoeing
topic Zea mays
Gliricidiasepium
green corn
grain yield
hoeing
description There is interest in the identification of the best seeding density for new corn hybrids and on reduced use of herbicides for weed control. The objective of this study was to evaluate the effects of seeding density (30, 50, 70, and 90 thousand plants ha-1) and weed control on green ear yield and grain yield in corn cultivar AG 1051. A completely randomized block design was adopted with split-plots (seeding densities assigned to plots) and ten replicates. Weed control was achieved by means of two hoeings and by planting corn intercropped with gliricidia (between corn rows, in pits spaced 0.3 m apart). A "no weeding"treatment was included as well. Increased seeding density increased the total number and weight of marketable green ears and decreased the biomass of both weeds and gliricidia. In non-weeded, intercropped and hoed plots, the maximum grain yield values achieved as seeding density increased were 7,881, 7,021, and 9,213 kg ha-1, respectively, obtained with populations of 67 thousand, 74 thousand, and 67 thousand plants per hectare, respectively. Intercropping did not control weeds (26 species) and provided weed growth, green ear yield, and grain yield (at the lowest densities) similar to those obtained without hoeing, except for total number of green ears, in which no influence of weed control was observed. At densities of 70 thousand and 90 thousand plants per hectare, grain yield with two hoeings was not different from yield values obtained without weeding or in the treatment intercropped with gliricidia, respectively, indicating that increased corn seeding density as well as gliricidiamay help to control weeds.
publishDate 2010
dc.date.none.fl_str_mv 2010-06-01
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=S0100-83582010000200006
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582010000200006
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0100-83582010000200006
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.28 n.2 2010
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
_version_ 1752126492182052864