Dinâmica de herbicidas em palha de cana-de-açúcar
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://dx.doi.org/10.1590/0103-8478cr20141244 http://hdl.handle.net/11449/177594 |
Resumo: | The process of mechanical harvesting of sugarcane generates a large deposition of straw on the soil surface, providing a coverage that several studies have found important for reducing the weed population. Although such coverage reduces weed infestations, additional management, including chemical control, is still needed. Thus, this study aimed to evaluate the leaching of atrazine, pendimethalin, metribuzin, clomazone, diuron and hexazinone in sugarcane straw. The experiment was conducted at the School of Agronomic Engineering at UNESP (Universidade Estadual Paulista) - Botucatu/SP. The sugarcane straw was collected in the field, cut and placed in quantities of 10t ha-1 in the capsules used as experimental units. The experimental design was completely randomized, using six herbicide treatments and four replications. Within 24 hours after the herbicides were applied in capsules with straw, five different rainfalls (5, 10, 20, 50 and 100mm) were simulated. The leached water was collected for chromatographic analysis. The herbicide percentages that crossed the straw layer were statistically correlated with the rainfall amount by the Mitscherlich model that compares the facility of herbicide removal from sugarcane straw. In summary, pendimethalin did not present quantified transposition of the product by sugarcane straw even with a rain simulation of 100 mm. Furthermore, two different profiles of facility to transpose the herbicides in straw were found: one for metribuzin and hexazinone that crossed quickly through the straw layer and another for atrazine, diuron and clomazone that required more rainfall to be leached from coverage to the soil according to the maximum removable amount of each herbicide. |
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Dinâmica de herbicidas em palha de cana-de-açúcarPerformance of herbicides in sugarcane strawAtrazineClomazoneDiuronHexazinoneMetribuzinPendimethalinThe process of mechanical harvesting of sugarcane generates a large deposition of straw on the soil surface, providing a coverage that several studies have found important for reducing the weed population. Although such coverage reduces weed infestations, additional management, including chemical control, is still needed. Thus, this study aimed to evaluate the leaching of atrazine, pendimethalin, metribuzin, clomazone, diuron and hexazinone in sugarcane straw. The experiment was conducted at the School of Agronomic Engineering at UNESP (Universidade Estadual Paulista) - Botucatu/SP. The sugarcane straw was collected in the field, cut and placed in quantities of 10t ha-1 in the capsules used as experimental units. The experimental design was completely randomized, using six herbicide treatments and four replications. Within 24 hours after the herbicides were applied in capsules with straw, five different rainfalls (5, 10, 20, 50 and 100mm) were simulated. The leached water was collected for chromatographic analysis. The herbicide percentages that crossed the straw layer were statistically correlated with the rainfall amount by the Mitscherlich model that compares the facility of herbicide removal from sugarcane straw. In summary, pendimethalin did not present quantified transposition of the product by sugarcane straw even with a rain simulation of 100 mm. Furthermore, two different profiles of facility to transpose the herbicides in straw were found: one for metribuzin and hexazinone that crossed quickly through the straw layer and another for atrazine, diuron and clomazone that required more rainfall to be leached from coverage to the soil according to the maximum removable amount of each herbicide.Laboratório Nacional de Ciência e Tecnologia do Bioetanol (CTBE)Departamento de Produção e Melhoramento Vegetal Universidade Estadual Paulista “Júlio de Mesquita Filho” (UNESP)Departamento de Produção e Melhoramento Vegetal Universidade Estadual Paulista “Júlio de Mesquita Filho” (UNESP)Laboratório Nacional de Ciência e Tecnologia do Bioetanol (CTBE)Universidade Estadual Paulista (Unesp)Araldi, RosilaineVelini, Edivaldo Domingues [UNESP]Gomes, Giovanna Larissa Gimenes Cotrick [UNESP]Tropaldi, Leandro [UNESP]Silva, Ilca Puertas de Freitas e [UNESP]Carbonari, Caio Antonio [UNESP]2018-12-11T17:26:15Z2018-12-11T17:26:15Z2015-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article2106-2112application/pdfhttp://dx.doi.org/10.1590/0103-8478cr20141244Ciencia Rural, v. 45, n. 12, p. 2106-2112, 2015.1678-45960103-8478http://hdl.handle.net/11449/17759410.1590/0103-8478cr20141244S0103-847820150012021062-s2.0-84947061033S0103-84782015001202106.pdf060468312453558298554934481617020000-0003-1592-51480000-0003-0431-5942Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengCiencia Rural0,337info:eu-repo/semantics/openAccess2024-04-30T15:55:50Zoai:repositorio.unesp.br:11449/177594Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T16:13:26.473345Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Dinâmica de herbicidas em palha de cana-de-açúcar Performance of herbicides in sugarcane straw |
title |
Dinâmica de herbicidas em palha de cana-de-açúcar |
spellingShingle |
Dinâmica de herbicidas em palha de cana-de-açúcar Araldi, Rosilaine Atrazine Clomazone Diuron Hexazinone Metribuzin Pendimethalin |
title_short |
Dinâmica de herbicidas em palha de cana-de-açúcar |
title_full |
Dinâmica de herbicidas em palha de cana-de-açúcar |
title_fullStr |
Dinâmica de herbicidas em palha de cana-de-açúcar |
title_full_unstemmed |
Dinâmica de herbicidas em palha de cana-de-açúcar |
title_sort |
Dinâmica de herbicidas em palha de cana-de-açúcar |
author |
Araldi, Rosilaine |
author_facet |
Araldi, Rosilaine Velini, Edivaldo Domingues [UNESP] Gomes, Giovanna Larissa Gimenes Cotrick [UNESP] Tropaldi, Leandro [UNESP] Silva, Ilca Puertas de Freitas e [UNESP] Carbonari, Caio Antonio [UNESP] |
author_role |
author |
author2 |
Velini, Edivaldo Domingues [UNESP] Gomes, Giovanna Larissa Gimenes Cotrick [UNESP] Tropaldi, Leandro [UNESP] Silva, Ilca Puertas de Freitas e [UNESP] Carbonari, Caio Antonio [UNESP] |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
Laboratório Nacional de Ciência e Tecnologia do Bioetanol (CTBE) Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Araldi, Rosilaine Velini, Edivaldo Domingues [UNESP] Gomes, Giovanna Larissa Gimenes Cotrick [UNESP] Tropaldi, Leandro [UNESP] Silva, Ilca Puertas de Freitas e [UNESP] Carbonari, Caio Antonio [UNESP] |
dc.subject.por.fl_str_mv |
Atrazine Clomazone Diuron Hexazinone Metribuzin Pendimethalin |
topic |
Atrazine Clomazone Diuron Hexazinone Metribuzin Pendimethalin |
description |
The process of mechanical harvesting of sugarcane generates a large deposition of straw on the soil surface, providing a coverage that several studies have found important for reducing the weed population. Although such coverage reduces weed infestations, additional management, including chemical control, is still needed. Thus, this study aimed to evaluate the leaching of atrazine, pendimethalin, metribuzin, clomazone, diuron and hexazinone in sugarcane straw. The experiment was conducted at the School of Agronomic Engineering at UNESP (Universidade Estadual Paulista) - Botucatu/SP. The sugarcane straw was collected in the field, cut and placed in quantities of 10t ha-1 in the capsules used as experimental units. The experimental design was completely randomized, using six herbicide treatments and four replications. Within 24 hours after the herbicides were applied in capsules with straw, five different rainfalls (5, 10, 20, 50 and 100mm) were simulated. The leached water was collected for chromatographic analysis. The herbicide percentages that crossed the straw layer were statistically correlated with the rainfall amount by the Mitscherlich model that compares the facility of herbicide removal from sugarcane straw. In summary, pendimethalin did not present quantified transposition of the product by sugarcane straw even with a rain simulation of 100 mm. Furthermore, two different profiles of facility to transpose the herbicides in straw were found: one for metribuzin and hexazinone that crossed quickly through the straw layer and another for atrazine, diuron and clomazone that required more rainfall to be leached from coverage to the soil according to the maximum removable amount of each herbicide. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-01-01 2018-12-11T17:26:15Z 2018-12-11T17:26:15Z |
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://dx.doi.org/10.1590/0103-8478cr20141244 Ciencia Rural, v. 45, n. 12, p. 2106-2112, 2015. 1678-4596 0103-8478 http://hdl.handle.net/11449/177594 10.1590/0103-8478cr20141244 S0103-84782015001202106 2-s2.0-84947061033 S0103-84782015001202106.pdf 0604683124535582 9855493448161702 0000-0003-1592-5148 0000-0003-0431-5942 |
url |
http://dx.doi.org/10.1590/0103-8478cr20141244 http://hdl.handle.net/11449/177594 |
identifier_str_mv |
Ciencia Rural, v. 45, n. 12, p. 2106-2112, 2015. 1678-4596 0103-8478 10.1590/0103-8478cr20141244 S0103-84782015001202106 2-s2.0-84947061033 S0103-84782015001202106.pdf 0604683124535582 9855493448161702 0000-0003-1592-5148 0000-0003-0431-5942 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Ciencia Rural 0,337 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
2106-2112 application/pdf |
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 |
|
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1808128619731484672 |