Control strategies of Urochloa spp. in the formation of forest restoration
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Ciência Florestal (Online) |
Texto Completo: | https://periodicos.ufsm.br/cienciaflorestal/article/view/25559 |
Resumo: | Forest restoration in pastures dominated by Urochloa spp. (brachiaria) shows relatively high cost, mainly by the difficulty of controlling this weed. The objective of this work was to determine the most efficient brachyria control for forest restoration formation. Four different strategies for brachiaria control in the forest restoration area were compared in the city of Bom Jardim, Rio de Janeiro state: T1 weeding in strips in the planting lines and mowed between the lines; T2 weeding in strips in the planting lines and applications of glyphosate (1.44 kg i.a. ha-1) between the lines; T3 - weeding in total area and consortium with herbaceous legumes nitrogen-fixing; T4 - weeding in strips in the planting lines, mowing and consortium with eucalyptus between the lines. The growth in height, the diameter at ground level and the diameter of the top of ten forest species at different ages were evaluated, as well as all costs involved in the application and maintenance of each treatment, up to 30 months after planting. In every age of valuation, forest plants showed significantly higher average growth in height and diameter at the ground level in the treatment of consortium with herbaceous legumes and application of glyphosate. At 24 months after planting, the top of the trees that were introduced had already covered 80% to 90% of the area of experimental unit that received the T3 (legumes) and T2 (Glyphosate) treatments, respectively. However, the maintenance cost of the T3 was almost double the T1 units and the cost of the latter was almost three times higher than the units analyzed for T2. As a general rule, eucalyptus consortium between the lines of planting did not harm, but also did not benefit the growth of the native species planted up to 30 months after planting. Chemical control and consortium with herbaceous legumes can be pointed as effective alternatives to control the brachiaria of this area, anticipating the formation of stands and resulting in resource savings. |
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Control strategies of Urochloa spp. in the formation of forest restorationEstratégias de controle de braquiárias Urochloa spp. na formação de povoamento para restauração florestalWeed controlAgrossilviculturais systemsChemical controlAtlantic ForestControle de plantas daninhasSistemas agrossilviculturaisControle químicoMata AtlânticaForest restoration in pastures dominated by Urochloa spp. (brachiaria) shows relatively high cost, mainly by the difficulty of controlling this weed. The objective of this work was to determine the most efficient brachyria control for forest restoration formation. Four different strategies for brachiaria control in the forest restoration area were compared in the city of Bom Jardim, Rio de Janeiro state: T1 weeding in strips in the planting lines and mowed between the lines; T2 weeding in strips in the planting lines and applications of glyphosate (1.44 kg i.a. ha-1) between the lines; T3 - weeding in total area and consortium with herbaceous legumes nitrogen-fixing; T4 - weeding in strips in the planting lines, mowing and consortium with eucalyptus between the lines. The growth in height, the diameter at ground level and the diameter of the top of ten forest species at different ages were evaluated, as well as all costs involved in the application and maintenance of each treatment, up to 30 months after planting. In every age of valuation, forest plants showed significantly higher average growth in height and diameter at the ground level in the treatment of consortium with herbaceous legumes and application of glyphosate. At 24 months after planting, the top of the trees that were introduced had already covered 80% to 90% of the area of experimental unit that received the T3 (legumes) and T2 (Glyphosate) treatments, respectively. However, the maintenance cost of the T3 was almost double the T1 units and the cost of the latter was almost three times higher than the units analyzed for T2. As a general rule, eucalyptus consortium between the lines of planting did not harm, but also did not benefit the growth of the native species planted up to 30 months after planting. Chemical control and consortium with herbaceous legumes can be pointed as effective alternatives to control the brachiaria of this area, anticipating the formation of stands and resulting in resource savings.A restauração florestal em áreas de pastagens, dominadas por Urochloa spp. (braquiárias), apresenta custo relativamente elevado, principalmente pela dificuldade de controle dessa planta infestante. O objetivo deste trabalho foi determinar a forma de controle de braquiárias mais eficiente para a formação de povoamento para restauração florestal. Foram comparadas quatro estratégias para controle de braquiária em área de restauração florestal no município de Bom Jardim - RJ: T1 - capina em faixas nas linhas de plantio e roçadas nas entrelinhas; T2 - capina em faixas nas linhas de plantio e aplicações do herbicida glyphosate (1,44 kg i.a. ha-1) nas entrelinhas; T3 - capina em área total e consórcio com leguminosas herbáceas fixadoras de nitrogênio; T4 - capina em faixas nas linhas de plantio, roçadas e consórcio com eucalipto nas entrelinhas. Avaliou-se o crescimento em altura, diâmetro no nível do solo e diâmetro de copa de dez espécies arbóreas em diferentes idades, bem como todos os custos envolvidos na aplicação e manutenção de cada tratamento, até 30 meses após o plantio. Em todas as épocas de avaliação, as plantas florestais apresentaram média de crescimento significativamente superior em altura e em diâmetro nos tratamentos de consórcio com leguminosas e aplicação de glyphosate (T3 e T2). Aos 24 meses após o plantio, a copa das árvores implantadas já recobria 80% a 90% da área da unidade experimental nesses tratamentos. Entretanto, o custo de manutenção do T3 foi quase o dobro das unidades de T1 e o custo deste último foi quase três vezes superior das unidades submetidas a T2. O consórcio de eucalipto nas entrelinhas de plantio não prejudicou, mas não beneficiou o crescimento das espécies nativas. O controle químico e o consórcio com leguminosas herbáceas podem ser apontados como alternativas eficazes para controle da braquiária dessa área, antecipando a formação dos povoamentos e resultando em economia de recursos.Universidade Federal de Santa Maria2020-04-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.ufsm.br/cienciaflorestal/article/view/2555910.5902/1980509825559Ciência Florestal; Vol. 30 No. 1 (2020); 29-42Ciência Florestal; v. 30 n. 1 (2020); 29-421980-50980103-9954reponame:Ciência Florestal (Online)instname:Universidade Federal de Santa Maria (UFSM)instacron:UFSMporhttps://periodicos.ufsm.br/cienciaflorestal/article/view/25559/23364Copyright (c) 2020 Ciência Florestalinfo:eu-repo/semantics/openAccessSantos, Flávio Augusto Monteiro dosLeles, Paulo Sérgio dos SantosResende, Alexander da SilvaNascimento, Daniel Ferreira doSantos, Gabriel Rocha dos2020-09-02T20:44:36Zoai:ojs.pkp.sfu.ca:article/25559Revistahttp://www.ufsm.br/cienciaflorestal/ONGhttps://old.scielo.br/oai/scielo-oai.php||cienciaflorestal@ufsm.br|| cienciaflorestal@gmail.com|| cf@smail.ufsm.br1980-50980103-9954opendoar:2020-09-02T20:44:36Ciência Florestal (Online) - Universidade Federal de Santa Maria (UFSM)false |
dc.title.none.fl_str_mv |
Control strategies of Urochloa spp. in the formation of forest restoration Estratégias de controle de braquiárias Urochloa spp. na formação de povoamento para restauração florestal |
title |
Control strategies of Urochloa spp. in the formation of forest restoration |
spellingShingle |
Control strategies of Urochloa spp. in the formation of forest restoration Santos, Flávio Augusto Monteiro dos Weed control Agrossilviculturais systems Chemical control Atlantic Forest Controle de plantas daninhas Sistemas agrossilviculturais Controle químico Mata Atlântica |
title_short |
Control strategies of Urochloa spp. in the formation of forest restoration |
title_full |
Control strategies of Urochloa spp. in the formation of forest restoration |
title_fullStr |
Control strategies of Urochloa spp. in the formation of forest restoration |
title_full_unstemmed |
Control strategies of Urochloa spp. in the formation of forest restoration |
title_sort |
Control strategies of Urochloa spp. in the formation of forest restoration |
author |
Santos, Flávio Augusto Monteiro dos |
author_facet |
Santos, Flávio Augusto Monteiro dos Leles, Paulo Sérgio dos Santos Resende, Alexander da Silva Nascimento, Daniel Ferreira do Santos, Gabriel Rocha dos |
author_role |
author |
author2 |
Leles, Paulo Sérgio dos Santos Resende, Alexander da Silva Nascimento, Daniel Ferreira do Santos, Gabriel Rocha dos |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Santos, Flávio Augusto Monteiro dos Leles, Paulo Sérgio dos Santos Resende, Alexander da Silva Nascimento, Daniel Ferreira do Santos, Gabriel Rocha dos |
dc.subject.por.fl_str_mv |
Weed control Agrossilviculturais systems Chemical control Atlantic Forest Controle de plantas daninhas Sistemas agrossilviculturais Controle químico Mata Atlântica |
topic |
Weed control Agrossilviculturais systems Chemical control Atlantic Forest Controle de plantas daninhas Sistemas agrossilviculturais Controle químico Mata Atlântica |
description |
Forest restoration in pastures dominated by Urochloa spp. (brachiaria) shows relatively high cost, mainly by the difficulty of controlling this weed. The objective of this work was to determine the most efficient brachyria control for forest restoration formation. Four different strategies for brachiaria control in the forest restoration area were compared in the city of Bom Jardim, Rio de Janeiro state: T1 weeding in strips in the planting lines and mowed between the lines; T2 weeding in strips in the planting lines and applications of glyphosate (1.44 kg i.a. ha-1) between the lines; T3 - weeding in total area and consortium with herbaceous legumes nitrogen-fixing; T4 - weeding in strips in the planting lines, mowing and consortium with eucalyptus between the lines. The growth in height, the diameter at ground level and the diameter of the top of ten forest species at different ages were evaluated, as well as all costs involved in the application and maintenance of each treatment, up to 30 months after planting. In every age of valuation, forest plants showed significantly higher average growth in height and diameter at the ground level in the treatment of consortium with herbaceous legumes and application of glyphosate. At 24 months after planting, the top of the trees that were introduced had already covered 80% to 90% of the area of experimental unit that received the T3 (legumes) and T2 (Glyphosate) treatments, respectively. However, the maintenance cost of the T3 was almost double the T1 units and the cost of the latter was almost three times higher than the units analyzed for T2. As a general rule, eucalyptus consortium between the lines of planting did not harm, but also did not benefit the growth of the native species planted up to 30 months after planting. Chemical control and consortium with herbaceous legumes can be pointed as effective alternatives to control the brachiaria of this area, anticipating the formation of stands and resulting in resource savings. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-04-06 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://periodicos.ufsm.br/cienciaflorestal/article/view/25559 10.5902/1980509825559 |
url |
https://periodicos.ufsm.br/cienciaflorestal/article/view/25559 |
identifier_str_mv |
10.5902/1980509825559 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://periodicos.ufsm.br/cienciaflorestal/article/view/25559/23364 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2020 Ciência Florestal info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2020 Ciência Florestal |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Federal de Santa Maria |
publisher.none.fl_str_mv |
Universidade Federal de Santa Maria |
dc.source.none.fl_str_mv |
Ciência Florestal; Vol. 30 No. 1 (2020); 29-42 Ciência Florestal; v. 30 n. 1 (2020); 29-42 1980-5098 0103-9954 reponame:Ciência Florestal (Online) instname:Universidade Federal de Santa Maria (UFSM) instacron:UFSM |
instname_str |
Universidade Federal de Santa Maria (UFSM) |
instacron_str |
UFSM |
institution |
UFSM |
reponame_str |
Ciência Florestal (Online) |
collection |
Ciência Florestal (Online) |
repository.name.fl_str_mv |
Ciência Florestal (Online) - Universidade Federal de Santa Maria (UFSM) |
repository.mail.fl_str_mv |
||cienciaflorestal@ufsm.br|| cienciaflorestal@gmail.com|| cf@smail.ufsm.br |
_version_ |
1799944131765600256 |