Effects of hand weeding strip and nitrogen fertilizer on corn plants
Autor(a) principal: | |
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Data de Publicação: | 2005 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://www.tandfonline.com/doi/full/10.1081/PFC-200034266#.Uv4s6oVGnIU http://hdl.handle.net/11449/68115 |
Resumo: | The objective of the present research was to evaluate effects of different strip weed control associated with nitrogen fertilizer on corn applied after planting. The experiment was set and conducted in Botucatu, São Paulo State, Brazil, and the hybrid planted was Dekalb 333-B. A completely randomized block design with four replications was used. Experimental plots were disposed as a factorial scheme 2 x 2 x 4, constituted by two types of weeding on row (with or without manual hoeing), two types of weeding on inter-row (with or without manual hoeing), and four nitrogen levels applied after planting (00, 60, 90, and 120 kg ha-1). Plots were composed by six rows with 5 m length. Nitrogen fertilizer was applied at 35 days after emergence (d.a.e). For weed community it was evaluated: weed density, dominancy, frequency, and relative importance. The main weed species were: Brachiaria plantiginea, Amaranthus retroflexus, Bidens pilosa, Cyperus rotunds, Brachiaria decumbens, Euphorbia heterofila, Oxalis latifolia, Acanthospermum hispidum, Commelina benghalensis. It was evaluated corn height at 40 and 100 d.a.e., first ear insertion height at 100 d.a.e., and final grain yield at harvesting. Plants and first ear insertion height were affected when nitrogen fertilizer was not applied. Treatments without weed control showed that weed interfered negatively with plants height. There were no correlation between weeds and nitrogen fertilizer for all parameters evaluated. Parcels without weed showed the highest ear weights and final grain production. Treatments that received nitrogen fertilizer, independently of studied arrangement, provided higher yields. |
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Effects of hand weeding strip and nitrogen fertilizer on corn plantsCompetitionInterferenceZea maysCultivationGrain (agricultural product)HarvestingNitrogen fertilizersWeed controlGrain productionWeedingPlants (botany)nitrogen fertilizercompetition (ecology)fertilizer applicationmechanical controlnitrogenweed controlAcanthospermumAmaranthusBidens pilosaBrachiariaCommelinaconference papercontrolled studycorncrop managementcrop productionCyperusEuphorbiaharvestnonhumanOxalisplant heightweedAgricultureBiomassFertilizersNitrogenPest ControlPopulation DynamicsGrainPlantingPlantsWeed ControlWeedsBrazilSao Paulo [Brazil]South AmericaWestern HemisphereWorldAcanthospermum hispidumAmaranthus retroflexusCommelina benghalensisCyperus rotundusEuphorbia heterophyllaOxalis latifoliaUrochloa brizanthaThe objective of the present research was to evaluate effects of different strip weed control associated with nitrogen fertilizer on corn applied after planting. The experiment was set and conducted in Botucatu, São Paulo State, Brazil, and the hybrid planted was Dekalb 333-B. A completely randomized block design with four replications was used. Experimental plots were disposed as a factorial scheme 2 x 2 x 4, constituted by two types of weeding on row (with or without manual hoeing), two types of weeding on inter-row (with or without manual hoeing), and four nitrogen levels applied after planting (00, 60, 90, and 120 kg ha-1). Plots were composed by six rows with 5 m length. Nitrogen fertilizer was applied at 35 days after emergence (d.a.e). For weed community it was evaluated: weed density, dominancy, frequency, and relative importance. The main weed species were: Brachiaria plantiginea, Amaranthus retroflexus, Bidens pilosa, Cyperus rotunds, Brachiaria decumbens, Euphorbia heterofila, Oxalis latifolia, Acanthospermum hispidum, Commelina benghalensis. It was evaluated corn height at 40 and 100 d.a.e., first ear insertion height at 100 d.a.e., and final grain yield at harvesting. Plants and first ear insertion height were affected when nitrogen fertilizer was not applied. Treatments without weed control showed that weed interfered negatively with plants height. There were no correlation between weeds and nitrogen fertilizer for all parameters evaluated. Parcels without weed showed the highest ear weights and final grain production. Treatments that received nitrogen fertilizer, independently of studied arrangement, provided higher yields.Departmento Def Agricultura UNESP/FCA, Botucatu, São PauloFazenda Experimental Lageado Departamento de Agriculture, Botucatu, São Paulo 18.600-000Departmento Def Agricultura UNESP/FCA, Botucatu, São PauloUniversidade Estadual Paulista (Unesp)Silva, João Renato Vaz da [UNESP]Martins, Dagoberto [UNESP]Cardoso, Leonildo A. [UNESP]Carbonari, Caio Antonio [UNESP]2014-05-27T11:21:16Z2014-05-27T11:21:16Z2005-01-20info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article129-135http://www.tandfonline.com/doi/full/10.1081/PFC-200034266#.Uv4s6oVGnIUJournal of Environmental Science and Health - Part B Pesticides, Food Contaminants, and Agricultural Wastes, v. 40, n. 1, p. 129-135, 2005.0360-1234http://hdl.handle.net/11449/68115WOS:0002261459000162-s2.0-114442681142340617938554636Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal of Environmental Science and Health - Part B: Pesticides, Food Contaminants, and Agricultural Wastes1.2730,420info:eu-repo/semantics/openAccess2024-04-30T15:56:41Zoai:repositorio.unesp.br:11449/68115Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-04-30T15:56:41Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Effects of hand weeding strip and nitrogen fertilizer on corn plants |
title |
Effects of hand weeding strip and nitrogen fertilizer on corn plants |
spellingShingle |
Effects of hand weeding strip and nitrogen fertilizer on corn plants Silva, João Renato Vaz da [UNESP] Competition Interference Zea mays Cultivation Grain (agricultural product) Harvesting Nitrogen fertilizers Weed control Grain production Weeding Plants (botany) nitrogen fertilizer competition (ecology) fertilizer application mechanical control nitrogen weed control Acanthospermum Amaranthus Bidens pilosa Brachiaria Commelina conference paper controlled study corn crop management crop production Cyperus Euphorbia harvest nonhuman Oxalis plant height weed Agriculture Biomass Fertilizers Nitrogen Pest Control Population Dynamics Grain Planting Plants Weed Control Weeds Brazil Sao Paulo [Brazil] South America Western Hemisphere World Acanthospermum hispidum Amaranthus retroflexus Commelina benghalensis Cyperus rotundus Euphorbia heterophylla Oxalis latifolia Urochloa brizantha |
title_short |
Effects of hand weeding strip and nitrogen fertilizer on corn plants |
title_full |
Effects of hand weeding strip and nitrogen fertilizer on corn plants |
title_fullStr |
Effects of hand weeding strip and nitrogen fertilizer on corn plants |
title_full_unstemmed |
Effects of hand weeding strip and nitrogen fertilizer on corn plants |
title_sort |
Effects of hand weeding strip and nitrogen fertilizer on corn plants |
author |
Silva, João Renato Vaz da [UNESP] |
author_facet |
Silva, João Renato Vaz da [UNESP] Martins, Dagoberto [UNESP] Cardoso, Leonildo A. [UNESP] Carbonari, Caio Antonio [UNESP] |
author_role |
author |
author2 |
Martins, Dagoberto [UNESP] Cardoso, Leonildo A. [UNESP] Carbonari, Caio Antonio [UNESP] |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Silva, João Renato Vaz da [UNESP] Martins, Dagoberto [UNESP] Cardoso, Leonildo A. [UNESP] Carbonari, Caio Antonio [UNESP] |
dc.subject.por.fl_str_mv |
Competition Interference Zea mays Cultivation Grain (agricultural product) Harvesting Nitrogen fertilizers Weed control Grain production Weeding Plants (botany) nitrogen fertilizer competition (ecology) fertilizer application mechanical control nitrogen weed control Acanthospermum Amaranthus Bidens pilosa Brachiaria Commelina conference paper controlled study corn crop management crop production Cyperus Euphorbia harvest nonhuman Oxalis plant height weed Agriculture Biomass Fertilizers Nitrogen Pest Control Population Dynamics Grain Planting Plants Weed Control Weeds Brazil Sao Paulo [Brazil] South America Western Hemisphere World Acanthospermum hispidum Amaranthus retroflexus Commelina benghalensis Cyperus rotundus Euphorbia heterophylla Oxalis latifolia Urochloa brizantha |
topic |
Competition Interference Zea mays Cultivation Grain (agricultural product) Harvesting Nitrogen fertilizers Weed control Grain production Weeding Plants (botany) nitrogen fertilizer competition (ecology) fertilizer application mechanical control nitrogen weed control Acanthospermum Amaranthus Bidens pilosa Brachiaria Commelina conference paper controlled study corn crop management crop production Cyperus Euphorbia harvest nonhuman Oxalis plant height weed Agriculture Biomass Fertilizers Nitrogen Pest Control Population Dynamics Grain Planting Plants Weed Control Weeds Brazil Sao Paulo [Brazil] South America Western Hemisphere World Acanthospermum hispidum Amaranthus retroflexus Commelina benghalensis Cyperus rotundus Euphorbia heterophylla Oxalis latifolia Urochloa brizantha |
description |
The objective of the present research was to evaluate effects of different strip weed control associated with nitrogen fertilizer on corn applied after planting. The experiment was set and conducted in Botucatu, São Paulo State, Brazil, and the hybrid planted was Dekalb 333-B. A completely randomized block design with four replications was used. Experimental plots were disposed as a factorial scheme 2 x 2 x 4, constituted by two types of weeding on row (with or without manual hoeing), two types of weeding on inter-row (with or without manual hoeing), and four nitrogen levels applied after planting (00, 60, 90, and 120 kg ha-1). Plots were composed by six rows with 5 m length. Nitrogen fertilizer was applied at 35 days after emergence (d.a.e). For weed community it was evaluated: weed density, dominancy, frequency, and relative importance. The main weed species were: Brachiaria plantiginea, Amaranthus retroflexus, Bidens pilosa, Cyperus rotunds, Brachiaria decumbens, Euphorbia heterofila, Oxalis latifolia, Acanthospermum hispidum, Commelina benghalensis. It was evaluated corn height at 40 and 100 d.a.e., first ear insertion height at 100 d.a.e., and final grain yield at harvesting. Plants and first ear insertion height were affected when nitrogen fertilizer was not applied. Treatments without weed control showed that weed interfered negatively with plants height. There were no correlation between weeds and nitrogen fertilizer for all parameters evaluated. Parcels without weed showed the highest ear weights and final grain production. Treatments that received nitrogen fertilizer, independently of studied arrangement, provided higher yields. |
publishDate |
2005 |
dc.date.none.fl_str_mv |
2005-01-20 2014-05-27T11:21:16Z 2014-05-27T11:21:16Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://www.tandfonline.com/doi/full/10.1081/PFC-200034266#.Uv4s6oVGnIU Journal of Environmental Science and Health - Part B Pesticides, Food Contaminants, and Agricultural Wastes, v. 40, n. 1, p. 129-135, 2005. 0360-1234 http://hdl.handle.net/11449/68115 WOS:000226145900016 2-s2.0-11444268114 2340617938554636 |
url |
http://www.tandfonline.com/doi/full/10.1081/PFC-200034266#.Uv4s6oVGnIU http://hdl.handle.net/11449/68115 |
identifier_str_mv |
Journal of Environmental Science and Health - Part B Pesticides, Food Contaminants, and Agricultural Wastes, v. 40, n. 1, p. 129-135, 2005. 0360-1234 WOS:000226145900016 2-s2.0-11444268114 2340617938554636 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Journal of Environmental Science and Health - Part B: Pesticides, Food Contaminants, and Agricultural Wastes 1.273 0,420 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
129-135 |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1799964986489962496 |