Coberturas vegetais no sistema de plantio direto orgânico de milho
Autor(a) principal: | |
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Data de Publicação: | 2014 |
Tipo de documento: | Dissertação |
Idioma: | por |
Título da fonte: | LOCUS Repositório Institucional da UFV |
Texto Completo: | http://locus.ufv.br/handle/123456789/2014 |
Resumo: | The greater difficulty tillage performed under organic management faces is weed control. More efficient weed management can be achieved with the knowledge of how its change over time. Weed population changes according to management. The use of cover crops in tillage organic system modifies the weed dynamics. The aim of this work was to study the effect of cover crops on weeds and corn yield in tillage organic system. The experimental design was a randomized block factorial (5 x 2) scheme with 4 replicates, comprising 40 experimental units. The treatments were composed of five types of cover: recommended bulk-seeded, UFV bulk, oat, sunflower and witness; and two cropping systems (single and maize intercropped with pig bean). The bulk system were a mix of seven crops: oat, maize, sorghum, sunflower, soybean, pigeon pea and pig bean, differing only in the amount of seed used. Phytosociological analysis of weed and similarity was held at V2, V5 and R1 stage of corn. It was also evaluated plant height, height of insertion of cob, stalk diameter, grain weight and grain yield of maize. The dry mass production of the crop with UFV bulk and recommended bulk were superior. The nutsedge showed higher relative importance in all treatments. The cover crops provided reduction in dry weight of weeds in all periods. The oat and UFV bulk were effective in reducing the number of weeds and dry weight of weeds in the evaluated periods. The sunflower cover showed similarity to the witness one. UFV bulk coverage and oat showed the highest value of corn yield. The intercropping system showed better performance for grain weight and yield. Thus the toppings consisting of oat and the UFV bulk are alternatives in suppressing weeds and favor of corn yield in tillage organic system. |
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Coelho, Steliane Pereirahttp://lattes.cnpq.br/3751024522185357Barrella, Tatiana Pireshttp://lattes.cnpq.br/9138274506570489Cecon, Paulo Robertohttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4788114T5Galvão, João Carlos Cardosohttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4784805H4Casali, Vicente Wagner Diashttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4783038Y4Berger, Paulo Geraldohttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4721101J62015-03-26T12:58:09Z2014-09-222015-03-26T12:58:09Z2014-07-15COELHO, Steliane Pereira. Plant covers in tillage organic system corn. 2014. 63 f. Dissertação (Mestrado em Agroecologia) - Universidade Federal de Viçosa, Viçosa, 2014.http://locus.ufv.br/handle/123456789/2014The greater difficulty tillage performed under organic management faces is weed control. More efficient weed management can be achieved with the knowledge of how its change over time. Weed population changes according to management. The use of cover crops in tillage organic system modifies the weed dynamics. The aim of this work was to study the effect of cover crops on weeds and corn yield in tillage organic system. The experimental design was a randomized block factorial (5 x 2) scheme with 4 replicates, comprising 40 experimental units. The treatments were composed of five types of cover: recommended bulk-seeded, UFV bulk, oat, sunflower and witness; and two cropping systems (single and maize intercropped with pig bean). The bulk system were a mix of seven crops: oat, maize, sorghum, sunflower, soybean, pigeon pea and pig bean, differing only in the amount of seed used. Phytosociological analysis of weed and similarity was held at V2, V5 and R1 stage of corn. It was also evaluated plant height, height of insertion of cob, stalk diameter, grain weight and grain yield of maize. The dry mass production of the crop with UFV bulk and recommended bulk were superior. The nutsedge showed higher relative importance in all treatments. The cover crops provided reduction in dry weight of weeds in all periods. The oat and UFV bulk were effective in reducing the number of weeds and dry weight of weeds in the evaluated periods. The sunflower cover showed similarity to the witness one. UFV bulk coverage and oat showed the highest value of corn yield. The intercropping system showed better performance for grain weight and yield. Thus the toppings consisting of oat and the UFV bulk are alternatives in suppressing weeds and favor of corn yield in tillage organic system.O plantio direto quando realizado sob manejo orgânico, enfrenta como maior dificuldade o controle das plantas daninhas. Manejos mais eficientes das plantas daninhas podem ser alcançados com o conhecimento de sua modificação no tempo. A população de plantas daninhas é modificada de acordo com o manejo realizado, uma vez que o uso de plantas de cobertura no plantio direto orgânico modifica a dinâmica dessas plantas. O objetivo deste trabalho foi estudar o efeito coberturas vegetais sobre as plantas daninhas e produtividade de milho em sistema de plantio direto orgânico. O experimento foi instalado no esquema fatorial 5 x 2, cinco plantas de cobertura e dois sistema de cultivo, no delineamento em blocos casualizados, com 4 repetições, compondo 40 unidades experimentais. Os tratamentos avaliados foram compostos de cinco coberturas: coquetel recomendado, coquetel UFV, aveia- preta, girassol e testemunha e dois sistemas de cultivo (milho solteiro e milho consorciado com feijão-de-porco). Os coquetéis foram compostos por sete culturas: aveia-preta, milho, sorgo, girassol, soja, feijão-guandu e feijão-de-porco, diferindo apenas na quantidade de semente utilizada. Quanto ao coquetel recomendado utilizou para cada cultura a proporção de 15% de sementes em relação à quantidade recomendada por hectare. No coquetel UFV foi utilizado a quantidade de sementes indicada para o cultivo em monocultura/ha -1 de cada espécie. Foi realizada análise fitossociológica das plantas daninhas e de similaridade no estádio V2, V5 e R1 da cultura do milho. Avaliou-se, ainda, a altura de plantas, altura da inserção de espiga, diâmetro do colmo, peso de grãos e a produtividade de grãos da cultura do milho. A produção de massa seca das plantas de cobertura do coquetel UFV e coquetel recomendado foram superiores. A tiririca apresentou maior importância relativa em todos os tratamentos. Nesse sentido, as plantas de cobertura proporcionaram redução na massa seca das plantas daninhas em todas as épocas avaliadas. A aveia-preta e o coquetel UFV foram eficientes na redução de massa seca e do número de plantas daninhas nas épocas avaliadas. A cobertura do girassol apresentou similaridade com a testemunha. As plantas de cobertura do coquetel UFV e aveia-preta proporcionaram as maiores produtividades de milho. O sistema de cultivo consorciado apresentou melhor desempenho para peso de grãos e produtividade. As coberturas formadas por aveia-preta e pelo coquetel UFV são alternativas na supressão de plantas daninhas e favorecem a produtividade do milho no plantio direto orgânico.Coordenação de Aperfeiçoamento de Pessoal de Nível Superiorapplication/pdfporUniversidade Federal de ViçosaMestrado em AgroecologiaUFVBRAgroecologiaMilho - CultivoZea maysCobertura vegetalProdução orgânicaCorn - cropsZea maysVegetation coverOrganic productionCNPQ::CIENCIAS AGRARIAS::AGRONOMIACoberturas vegetais no sistema de plantio direto orgânico de milhoPlant covers in tillage organic system corninfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisinfo:eu-repo/semantics/openAccessreponame:LOCUS Repositório Institucional da UFVinstname:Universidade Federal de Viçosa (UFV)instacron:UFVORIGINALtexto completo.pdfapplication/pdf784560https://locus.ufv.br//bitstream/123456789/2014/1/texto%20completo.pdfbb2cf15b4835688f1569c27ae0e5eab7MD51TEXTtexto completo.pdf.txttexto completo.pdf.txtExtracted texttext/plain132269https://locus.ufv.br//bitstream/123456789/2014/2/texto%20completo.pdf.txteb91b05c85c0dbee75edba5cb05ddc9cMD52THUMBNAILtexto completo.pdf.jpgtexto completo.pdf.jpgIM Thumbnailimage/jpeg3546https://locus.ufv.br//bitstream/123456789/2014/3/texto%20completo.pdf.jpg2215e6ffec284cb18a95cc9c6122572bMD53123456789/20142016-04-07 23:19:33.119oai:locus.ufv.br:123456789/2014Repositório InstitucionalPUBhttps://www.locus.ufv.br/oai/requestfabiojreis@ufv.bropendoar:21452016-04-08T02:19:33LOCUS Repositório Institucional da UFV - Universidade Federal de Viçosa (UFV)false |
dc.title.por.fl_str_mv |
Coberturas vegetais no sistema de plantio direto orgânico de milho |
dc.title.alternative.eng.fl_str_mv |
Plant covers in tillage organic system corn |
title |
Coberturas vegetais no sistema de plantio direto orgânico de milho |
spellingShingle |
Coberturas vegetais no sistema de plantio direto orgânico de milho Coelho, Steliane Pereira Milho - Cultivo Zea mays Cobertura vegetal Produção orgânica Corn - crops Zea mays Vegetation cover Organic production CNPQ::CIENCIAS AGRARIAS::AGRONOMIA |
title_short |
Coberturas vegetais no sistema de plantio direto orgânico de milho |
title_full |
Coberturas vegetais no sistema de plantio direto orgânico de milho |
title_fullStr |
Coberturas vegetais no sistema de plantio direto orgânico de milho |
title_full_unstemmed |
Coberturas vegetais no sistema de plantio direto orgânico de milho |
title_sort |
Coberturas vegetais no sistema de plantio direto orgânico de milho |
author |
Coelho, Steliane Pereira |
author_facet |
Coelho, Steliane Pereira |
author_role |
author |
dc.contributor.authorLattes.por.fl_str_mv |
http://lattes.cnpq.br/3751024522185357 |
dc.contributor.author.fl_str_mv |
Coelho, Steliane Pereira |
dc.contributor.advisor-co1.fl_str_mv |
Barrella, Tatiana Pires |
dc.contributor.advisor-co1Lattes.fl_str_mv |
http://lattes.cnpq.br/9138274506570489 |
dc.contributor.advisor-co2.fl_str_mv |
Cecon, Paulo Roberto |
dc.contributor.advisor-co2Lattes.fl_str_mv |
http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4788114T5 |
dc.contributor.advisor1.fl_str_mv |
Galvão, João Carlos Cardoso |
dc.contributor.advisor1Lattes.fl_str_mv |
http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4784805H4 |
dc.contributor.referee1.fl_str_mv |
Casali, Vicente Wagner Dias |
dc.contributor.referee1Lattes.fl_str_mv |
http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4783038Y4 |
dc.contributor.referee2.fl_str_mv |
Berger, Paulo Geraldo |
dc.contributor.referee2Lattes.fl_str_mv |
http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4721101J6 |
contributor_str_mv |
Barrella, Tatiana Pires Cecon, Paulo Roberto Galvão, João Carlos Cardoso Casali, Vicente Wagner Dias Berger, Paulo Geraldo |
dc.subject.por.fl_str_mv |
Milho - Cultivo Zea mays Cobertura vegetal Produção orgânica |
topic |
Milho - Cultivo Zea mays Cobertura vegetal Produção orgânica Corn - crops Zea mays Vegetation cover Organic production CNPQ::CIENCIAS AGRARIAS::AGRONOMIA |
dc.subject.eng.fl_str_mv |
Corn - crops Zea mays Vegetation cover Organic production |
dc.subject.cnpq.fl_str_mv |
CNPQ::CIENCIAS AGRARIAS::AGRONOMIA |
description |
The greater difficulty tillage performed under organic management faces is weed control. More efficient weed management can be achieved with the knowledge of how its change over time. Weed population changes according to management. The use of cover crops in tillage organic system modifies the weed dynamics. The aim of this work was to study the effect of cover crops on weeds and corn yield in tillage organic system. The experimental design was a randomized block factorial (5 x 2) scheme with 4 replicates, comprising 40 experimental units. The treatments were composed of five types of cover: recommended bulk-seeded, UFV bulk, oat, sunflower and witness; and two cropping systems (single and maize intercropped with pig bean). The bulk system were a mix of seven crops: oat, maize, sorghum, sunflower, soybean, pigeon pea and pig bean, differing only in the amount of seed used. Phytosociological analysis of weed and similarity was held at V2, V5 and R1 stage of corn. It was also evaluated plant height, height of insertion of cob, stalk diameter, grain weight and grain yield of maize. The dry mass production of the crop with UFV bulk and recommended bulk were superior. The nutsedge showed higher relative importance in all treatments. The cover crops provided reduction in dry weight of weeds in all periods. The oat and UFV bulk were effective in reducing the number of weeds and dry weight of weeds in the evaluated periods. The sunflower cover showed similarity to the witness one. UFV bulk coverage and oat showed the highest value of corn yield. The intercropping system showed better performance for grain weight and yield. Thus the toppings consisting of oat and the UFV bulk are alternatives in suppressing weeds and favor of corn yield in tillage organic system. |
publishDate |
2014 |
dc.date.available.fl_str_mv |
2014-09-22 2015-03-26T12:58:09Z |
dc.date.issued.fl_str_mv |
2014-07-15 |
dc.date.accessioned.fl_str_mv |
2015-03-26T12:58:09Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/masterThesis |
format |
masterThesis |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
COELHO, Steliane Pereira. Plant covers in tillage organic system corn. 2014. 63 f. Dissertação (Mestrado em Agroecologia) - Universidade Federal de Viçosa, Viçosa, 2014. |
dc.identifier.uri.fl_str_mv |
http://locus.ufv.br/handle/123456789/2014 |
identifier_str_mv |
COELHO, Steliane Pereira. Plant covers in tillage organic system corn. 2014. 63 f. Dissertação (Mestrado em Agroecologia) - Universidade Federal de Viçosa, Viçosa, 2014. |
url |
http://locus.ufv.br/handle/123456789/2014 |
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por |
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por |
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openAccess |
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dc.publisher.none.fl_str_mv |
Universidade Federal de Viçosa |
dc.publisher.program.fl_str_mv |
Mestrado em Agroecologia |
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UFV |
dc.publisher.country.fl_str_mv |
BR |
dc.publisher.department.fl_str_mv |
Agroecologia |
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Universidade Federal de Viçosa |
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