Hormesis method for increasing oat straw with a view to viability of direct-seeding systems
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902015000100048 http://hdl.handle.net/11449/129257 |
Resumo: | In conservation agriculture, mainly under direct seeding, maintaining the vegetation ground cover is essential, since this serves as a reservoir of nutrients which are slowly released to plants by microorganisms. Some authors have sought to study increases in the amount of straw in the soil, in addition to slowing down the process of decomposition, with hormesis being one of the techniques used. This technique states that all chemical substances are both poisonous and nonpoisonous, with only the dosage determining whether they are lethal or not. This study aimed to evaluate the dry weight and agronomic characteristics of a crop of black oat subjected to hormesis. The experimental design was of randomised blocks, with 12 treatments and 4 replications, giving a total of 48 experimental lots. The treatments were: Haloxyfop-R Methyl Ester at dosages of 0.625, 1.25 and 2.50 g ha(-1); Glyphosate at dosages of 12.50, 25.00 and 50.00 g ha-1; 2,4-D dimethylamine salt at dosages of 100.00, 200.00 and 300.00 g ha(-1); Alterbane at a dosage of 500.00 g ha(-1); Salicylic acid at a dose of 100 g ha(-1); and a control. It was concluded that for the subdosages under test, the herbicides 2,4-D at medium dosage and Verdict at low dosage were shown to be the best treatments for conserving straw as ground cover under direct seeding. |
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Hormesis method for increasing oat straw with a view to viability of direct-seeding systemsMétodo hormesis para o aumento da palhada de aveia preta visando à viabilidade do sistema de plantio diretoSustainabilityVegetation coverDirect-seeding systemsSustentabilidadeCobertura vegetalSistemas de plantio diretoIn conservation agriculture, mainly under direct seeding, maintaining the vegetation ground cover is essential, since this serves as a reservoir of nutrients which are slowly released to plants by microorganisms. Some authors have sought to study increases in the amount of straw in the soil, in addition to slowing down the process of decomposition, with hormesis being one of the techniques used. This technique states that all chemical substances are both poisonous and nonpoisonous, with only the dosage determining whether they are lethal or not. This study aimed to evaluate the dry weight and agronomic characteristics of a crop of black oat subjected to hormesis. The experimental design was of randomised blocks, with 12 treatments and 4 replications, giving a total of 48 experimental lots. The treatments were: Haloxyfop-R Methyl Ester at dosages of 0.625, 1.25 and 2.50 g ha(-1); Glyphosate at dosages of 12.50, 25.00 and 50.00 g ha-1; 2,4-D dimethylamine salt at dosages of 100.00, 200.00 and 300.00 g ha(-1); Alterbane at a dosage of 500.00 g ha(-1); Salicylic acid at a dose of 100 g ha(-1); and a control. It was concluded that for the subdosages under test, the herbicides 2,4-D at medium dosage and Verdict at low dosage were shown to be the best treatments for conserving straw as ground cover under direct seeding.Na agricultura conservacionista, principalmente no plantio direto, a manutenção da cobertura vegetal sobre o solo é essencial, pois esta funciona como reservatório de nutrientes que lentamente serão liberados para as plantas através de microrganismos. Alguns autores têm procurado estudos para aumentar a quantidade de palha presente no solo, além de desacelerar seu processo de decomposição, sendo uma das técnicas utilizadas a hormesis. Essa técnica diz que todas as substâncias químicas são veneno e não veneno, o que faz dela letal ou não, é apenas a dosagem. O trabalho teve como objetivo avaliar a matéria seca e as características agronômicas da cultura da aveia preta submetida à hormesis. O delineamento experimental foi em blocos casualizados com 12 tratamentos e 4 repetições, totalizando 48 parcelas experimentais. Os tratamentos foram: Haloxifope-R Éster Metílico na dosagem de 0,625; 1,25 e 2,50 g ha-1, Glyphosate na dosagem de 12,50; 25,00 e 50,00 g ha-1, (2,4-D) Sal Dimetilamina na dosagem de 100,00; 200,00 e 300,00 g ha-1, Alterbane na dosagem de 500,00 g ha-1, Ácido salicílico na dosagem de 100 g ha-1 além de uma testemunha. Concluiu-se que nas subdosagens testadas, os herbicidas 2,4 D na dosagem média e Verdict na dosagem baixa, apresentaram-se como melhores tratamentos para a conservação de palha no solo sob plantio direto.Univ Fed Vales Jequitinhonha &Mucuri, Inst Ciencias Agr, Unai, MG, BrazilUniv Estadual Paulista, Fac Ciencias Agron, Botucatu, SP, BrazilUniversidade Estadual Paulista Júlio de Mesquita Filho, Faculdade de Ciências Agronômicas de Botucatu, Departamento de Agricultura e Melhoramento VegetalUniv Federal Ceara, Dept GeolUniversidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM)Universidade Estadual Paulista (Unesp)Felix Tavares, Leandro AugustoGomes Sousa, Saulo Fernando [UNESP]Silva Correia, Tiago Pereira da [UNESP]Arbex Silva, Paulo Roberto [UNESP]Velini, Edivaldo Domingues [UNESP]2015-10-21T20:42:18Z2015-10-21T20:42:18Z2015-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article48-53application/pdfhttp://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902015000100048Revista Ciencia Agronomica. Fortaleza: Univ Federal Ceara, Dept Geol, v. 46, n. 1, p. 48-53, 2015.1806-6690http://hdl.handle.net/11449/12925710.1590/S1806-66902015000100006S1806-66902015000100048WOS:000348208400006S1806-66902015000100048.pdf98554934481617020000-0003-0431-5942Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengRevista Ciencia Agronomica0.6050,498info:eu-repo/semantics/openAccess2024-04-30T15:58:32Zoai:repositorio.unesp.br:11449/129257Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-04-30T15:58:32Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Hormesis method for increasing oat straw with a view to viability of direct-seeding systems Método hormesis para o aumento da palhada de aveia preta visando à viabilidade do sistema de plantio direto |
title |
Hormesis method for increasing oat straw with a view to viability of direct-seeding systems |
spellingShingle |
Hormesis method for increasing oat straw with a view to viability of direct-seeding systems Felix Tavares, Leandro Augusto Sustainability Vegetation cover Direct-seeding systems Sustentabilidade Cobertura vegetal Sistemas de plantio direto |
title_short |
Hormesis method for increasing oat straw with a view to viability of direct-seeding systems |
title_full |
Hormesis method for increasing oat straw with a view to viability of direct-seeding systems |
title_fullStr |
Hormesis method for increasing oat straw with a view to viability of direct-seeding systems |
title_full_unstemmed |
Hormesis method for increasing oat straw with a view to viability of direct-seeding systems |
title_sort |
Hormesis method for increasing oat straw with a view to viability of direct-seeding systems |
author |
Felix Tavares, Leandro Augusto |
author_facet |
Felix Tavares, Leandro Augusto Gomes Sousa, Saulo Fernando [UNESP] Silva Correia, Tiago Pereira da [UNESP] Arbex Silva, Paulo Roberto [UNESP] Velini, Edivaldo Domingues [UNESP] |
author_role |
author |
author2 |
Gomes Sousa, Saulo Fernando [UNESP] Silva Correia, Tiago Pereira da [UNESP] Arbex Silva, Paulo Roberto [UNESP] Velini, Edivaldo Domingues [UNESP] |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM) Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Felix Tavares, Leandro Augusto Gomes Sousa, Saulo Fernando [UNESP] Silva Correia, Tiago Pereira da [UNESP] Arbex Silva, Paulo Roberto [UNESP] Velini, Edivaldo Domingues [UNESP] |
dc.subject.por.fl_str_mv |
Sustainability Vegetation cover Direct-seeding systems Sustentabilidade Cobertura vegetal Sistemas de plantio direto |
topic |
Sustainability Vegetation cover Direct-seeding systems Sustentabilidade Cobertura vegetal Sistemas de plantio direto |
description |
In conservation agriculture, mainly under direct seeding, maintaining the vegetation ground cover is essential, since this serves as a reservoir of nutrients which are slowly released to plants by microorganisms. Some authors have sought to study increases in the amount of straw in the soil, in addition to slowing down the process of decomposition, with hormesis being one of the techniques used. This technique states that all chemical substances are both poisonous and nonpoisonous, with only the dosage determining whether they are lethal or not. This study aimed to evaluate the dry weight and agronomic characteristics of a crop of black oat subjected to hormesis. The experimental design was of randomised blocks, with 12 treatments and 4 replications, giving a total of 48 experimental lots. The treatments were: Haloxyfop-R Methyl Ester at dosages of 0.625, 1.25 and 2.50 g ha(-1); Glyphosate at dosages of 12.50, 25.00 and 50.00 g ha-1; 2,4-D dimethylamine salt at dosages of 100.00, 200.00 and 300.00 g ha(-1); Alterbane at a dosage of 500.00 g ha(-1); Salicylic acid at a dose of 100 g ha(-1); and a control. It was concluded that for the subdosages under test, the herbicides 2,4-D at medium dosage and Verdict at low dosage were shown to be the best treatments for conserving straw as ground cover under direct seeding. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-10-21T20:42:18Z 2015-10-21T20:42:18Z 2015-01-01 |
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.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902015000100048 Revista Ciencia Agronomica. Fortaleza: Univ Federal Ceara, Dept Geol, v. 46, n. 1, p. 48-53, 2015. 1806-6690 http://hdl.handle.net/11449/129257 10.1590/S1806-66902015000100006 S1806-66902015000100048 WOS:000348208400006 S1806-66902015000100048.pdf 9855493448161702 0000-0003-0431-5942 |
url |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902015000100048 http://hdl.handle.net/11449/129257 |
identifier_str_mv |
Revista Ciencia Agronomica. Fortaleza: Univ Federal Ceara, Dept Geol, v. 46, n. 1, p. 48-53, 2015. 1806-6690 10.1590/S1806-66902015000100006 S1806-66902015000100048 WOS:000348208400006 S1806-66902015000100048.pdf 9855493448161702 0000-0003-0431-5942 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Revista Ciencia Agronomica 0.605 0,498 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
48-53 application/pdf |
dc.publisher.none.fl_str_mv |
Univ Federal Ceara, Dept Geol |
publisher.none.fl_str_mv |
Univ Federal Ceara, Dept Geol |
dc.source.none.fl_str_mv |
Web of Science 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 |
|
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1803650128601415680 |