Plantas daninhas na silvicultura de Eucalyptus grandis x Eucalyptus urophylla: biomassa e nutrientes
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Tipo de documento: | Tese |
Idioma: | por |
Título da fonte: | Manancial - Repositório Digital da UFSM |
dARK ID: | ark:/26339/001300000z5n8 |
Texto Completo: | http://repositorio.ufsm.br/handle/1/26140 |
Resumo: | The determination of the period of coexistence of weeds with the eucalyptus stand helps in the integrated management of weed competition, acting as an efficient tool that reduces the use of herbicides and the economic and environmental costs. Therefore, the objectives of the present study are to determine the period of coexistence of a hybrid of Eucalyptus grandis x Eucalyptus urophylla with weeds, evaluating the impact on biomass production, concentrations and stock of macro and micronutrients. The experiment was carried out in Bioma Pampa, in the municipality of Candiota - RS, and followed the design of Random Blocks, with three replications. For eucalyptus, treatments consist of increasing periods of coexistence or control with weeds. For the weeds, the treatments considered were the stages of their development, which were divided into 3 stages (1, 2 and 3) respectively. The total biomass of eucalyptus in the coexistence treatment was 53.7 Mg ha-1 and in the weed control treatment until 168 days it was 81.4 Mg ha-1. This reduction was in the order of 34%. It is recommended that from the 56th to the 140th day, the critical period for preventing interference (PCPI), the eucalyptus grows free from coexistence with weeds. The total interference prevention period (PTPI) was 140 days. The maintenance of weeds for 378 days promoted a significant reduction in the production of total biomass and wood. The highest nutrient utilization efficiency (EUN) was observed in wood. The total amount of weed biomass during the 3 stages was 35.2 Mg ha-1, following the order of the different species: Eragrostis pilosa (29.9 %) > Baccharis coridifolia (18.1 %) > Paspalum sp. (9.8%) > Senecio sp. (8.0 %) > Aspilia montevidensis (7.7 %) > Lolium multiflorum (7.0 %) > Sporobolus sp. (6.1 %) > Erianthus angustifolius (5.5 %) > Conyza bonariensis (4.0 %) > Cynodon dactylon (3.9 %). The third development period differed statistically from the other periods and represented 63% and 60% of the total macro and micronutrients allocated to the biomass. Statistical analyzes show that weed biomass production has a seasonal behavior, with phase 3 of development accounting for more than half (54.8%) of all quantified biomass, followed by phase 2 (30.6%) and 1 (14.6%). |
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Plantas daninhas na silvicultura de Eucalyptus grandis x Eucalyptus urophylla: biomassa e nutrientesWeeds in silviculture of Eucalyptus grandis x Eucalyptus urophylla: biomass and nutrientsMatocompetiçãoNutrição florestalSilviculturaWeed competitionForest nutritionSilvicultureCNPQ::CIENCIAS AGRARIAS::RECURSOS FLORESTAIS E ENGENHARIA FLORESTALThe determination of the period of coexistence of weeds with the eucalyptus stand helps in the integrated management of weed competition, acting as an efficient tool that reduces the use of herbicides and the economic and environmental costs. Therefore, the objectives of the present study are to determine the period of coexistence of a hybrid of Eucalyptus grandis x Eucalyptus urophylla with weeds, evaluating the impact on biomass production, concentrations and stock of macro and micronutrients. The experiment was carried out in Bioma Pampa, in the municipality of Candiota - RS, and followed the design of Random Blocks, with three replications. For eucalyptus, treatments consist of increasing periods of coexistence or control with weeds. For the weeds, the treatments considered were the stages of their development, which were divided into 3 stages (1, 2 and 3) respectively. The total biomass of eucalyptus in the coexistence treatment was 53.7 Mg ha-1 and in the weed control treatment until 168 days it was 81.4 Mg ha-1. This reduction was in the order of 34%. It is recommended that from the 56th to the 140th day, the critical period for preventing interference (PCPI), the eucalyptus grows free from coexistence with weeds. The total interference prevention period (PTPI) was 140 days. The maintenance of weeds for 378 days promoted a significant reduction in the production of total biomass and wood. The highest nutrient utilization efficiency (EUN) was observed in wood. The total amount of weed biomass during the 3 stages was 35.2 Mg ha-1, following the order of the different species: Eragrostis pilosa (29.9 %) > Baccharis coridifolia (18.1 %) > Paspalum sp. (9.8%) > Senecio sp. (8.0 %) > Aspilia montevidensis (7.7 %) > Lolium multiflorum (7.0 %) > Sporobolus sp. (6.1 %) > Erianthus angustifolius (5.5 %) > Conyza bonariensis (4.0 %) > Cynodon dactylon (3.9 %). The third development period differed statistically from the other periods and represented 63% and 60% of the total macro and micronutrients allocated to the biomass. Statistical analyzes show that weed biomass production has a seasonal behavior, with phase 3 of development accounting for more than half (54.8%) of all quantified biomass, followed by phase 2 (30.6%) and 1 (14.6%).Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPESA determinação do período de convivência das plantas daninhas com a cultura do eucalipto auxilia no manejo integrado da matocompetição, atuando como uma eficiente ferramenta que reduz o uso de herbicidas e os custos econômicos e ambientais. Assim sendo, os objetivos do presente estudo são determinar o período de convivência de um híbrido de Eucalyptus grandis x Eucalyptus urophylla com as plantas daninhas, avaliando o impacto na produção de biomassa, nos teores e no estoque de macro e micronutrientes. O experimento foi conduzido no Bioma Pampa, no município de Candiota - RS, e obedeceu ao delineamento de Blocos ao Acaso, com três repetições. Para o eucalipto, os tratamentos constam de períodos crescentes de convivência ou de controle com as plantas daninhas. Para as plantas daninhas os tratamentos considerados foram as fases de desenvolvimento das mesmas, que foram divididas em 3 estágios (1, 2 e 3) respectivamente. A biomassa total do eucalipto no tratamento sempre em convivência foi de 53,7 Mg ha-1 e no tratamento de controle até os 168 dias foi de 81,4 Mg ha-1. Essa redução foi na ordem de 34%. Recomendase que do 56º ao 140º dia, período crítico de prevenção à interferência (PCPI), mantenha-se a cultura do eucalipto livre da convivência com as plantas daninhas. O período total de prevenção à interferência (PTPI), foi 140 dias. A manutenção das plantas daninhas por todo o período promove significativa redução na produção de biomassa total e de madeira do eucalipto. A maior eficiência de utilização de nutrientes (EUN) foi observada na madeira. A quantidade total de biomassa de plantas daninhas durante os 3 estágios foi de 35,2 Mg ha-1, seguindo a seguinte ordem em relação as diferentes espécies: Eragrostis pilosa (29,9 %) > Baccharis coridifolia (18,1 %) > Paspalum sp. (9,8 %) > Senecio sp. (8,0 %) > Aspilia montevidensis (7,7 %) > Lolium multiflorum (7,0 %) > Sporobolus sp. (6,1 %) > Erianthus angustifolius (5,5 %) > Conyza bonariensis (4,0%) > Cynodon dactylon (3,9 %). A fase 3 de desenvolvimento diferiu estatisticamente das demais e representou 63% e 60% dos macro e micronutrientes totais alocados na biomassa. As análises estatísticas mostram que a produção de biomassa de plantas daninhas possui um comportamento sazonal, sendo a fase 3 de desenvolvimento, responsável por mais da metade (54,8 %) de toda biomassa quantificada, seguida pela fase 2 (30,6 %) e 1 (14,6 %).Universidade Federal de Santa MariaBrasilRecursos Florestais e Engenharia FlorestalUFSMPrograma de Pós-Graduação em Engenharia FlorestalCentro de Ciências RuraisSchumacher, Mauro Valdirhttp://lattes.cnpq.br/4577505947479643Araújo, Maristela Machado deCaldeira, Marcos Vinicius WincklerCorrea, Robson SchaffCalil, Francine NevesViera, MárcioMomolli, Dione Richer2022-09-13T20:02:14Z2022-09-13T20:02:14Z2022-08-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/doctoralThesisapplication/pdfhttp://repositorio.ufsm.br/handle/1/26140ark:/26339/001300000z5n8porAttribution-NonCommercial-NoDerivatives 4.0 Internationalhttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessreponame:Manancial - Repositório Digital da UFSMinstname:Universidade Federal de Santa Maria (UFSM)instacron:UFSM2022-09-13T20:02:15Zoai:repositorio.ufsm.br:1/26140Biblioteca Digital de Teses e Dissertaçõeshttps://repositorio.ufsm.br/ONGhttps://repositorio.ufsm.br/oai/requestatendimento.sib@ufsm.br||tedebc@gmail.comopendoar:2022-09-13T20:02:15Manancial - Repositório Digital da UFSM - Universidade Federal de Santa Maria (UFSM)false |
dc.title.none.fl_str_mv |
Plantas daninhas na silvicultura de Eucalyptus grandis x Eucalyptus urophylla: biomassa e nutrientes Weeds in silviculture of Eucalyptus grandis x Eucalyptus urophylla: biomass and nutrients |
title |
Plantas daninhas na silvicultura de Eucalyptus grandis x Eucalyptus urophylla: biomassa e nutrientes |
spellingShingle |
Plantas daninhas na silvicultura de Eucalyptus grandis x Eucalyptus urophylla: biomassa e nutrientes Momolli, Dione Richer Matocompetição Nutrição florestal Silvicultura Weed competition Forest nutrition Silviculture CNPQ::CIENCIAS AGRARIAS::RECURSOS FLORESTAIS E ENGENHARIA FLORESTAL |
title_short |
Plantas daninhas na silvicultura de Eucalyptus grandis x Eucalyptus urophylla: biomassa e nutrientes |
title_full |
Plantas daninhas na silvicultura de Eucalyptus grandis x Eucalyptus urophylla: biomassa e nutrientes |
title_fullStr |
Plantas daninhas na silvicultura de Eucalyptus grandis x Eucalyptus urophylla: biomassa e nutrientes |
title_full_unstemmed |
Plantas daninhas na silvicultura de Eucalyptus grandis x Eucalyptus urophylla: biomassa e nutrientes |
title_sort |
Plantas daninhas na silvicultura de Eucalyptus grandis x Eucalyptus urophylla: biomassa e nutrientes |
author |
Momolli, Dione Richer |
author_facet |
Momolli, Dione Richer |
author_role |
author |
dc.contributor.none.fl_str_mv |
Schumacher, Mauro Valdir http://lattes.cnpq.br/4577505947479643 Araújo, Maristela Machado de Caldeira, Marcos Vinicius Winckler Correa, Robson Schaff Calil, Francine Neves Viera, Márcio |
dc.contributor.author.fl_str_mv |
Momolli, Dione Richer |
dc.subject.por.fl_str_mv |
Matocompetição Nutrição florestal Silvicultura Weed competition Forest nutrition Silviculture CNPQ::CIENCIAS AGRARIAS::RECURSOS FLORESTAIS E ENGENHARIA FLORESTAL |
topic |
Matocompetição Nutrição florestal Silvicultura Weed competition Forest nutrition Silviculture CNPQ::CIENCIAS AGRARIAS::RECURSOS FLORESTAIS E ENGENHARIA FLORESTAL |
description |
The determination of the period of coexistence of weeds with the eucalyptus stand helps in the integrated management of weed competition, acting as an efficient tool that reduces the use of herbicides and the economic and environmental costs. Therefore, the objectives of the present study are to determine the period of coexistence of a hybrid of Eucalyptus grandis x Eucalyptus urophylla with weeds, evaluating the impact on biomass production, concentrations and stock of macro and micronutrients. The experiment was carried out in Bioma Pampa, in the municipality of Candiota - RS, and followed the design of Random Blocks, with three replications. For eucalyptus, treatments consist of increasing periods of coexistence or control with weeds. For the weeds, the treatments considered were the stages of their development, which were divided into 3 stages (1, 2 and 3) respectively. The total biomass of eucalyptus in the coexistence treatment was 53.7 Mg ha-1 and in the weed control treatment until 168 days it was 81.4 Mg ha-1. This reduction was in the order of 34%. It is recommended that from the 56th to the 140th day, the critical period for preventing interference (PCPI), the eucalyptus grows free from coexistence with weeds. The total interference prevention period (PTPI) was 140 days. The maintenance of weeds for 378 days promoted a significant reduction in the production of total biomass and wood. The highest nutrient utilization efficiency (EUN) was observed in wood. The total amount of weed biomass during the 3 stages was 35.2 Mg ha-1, following the order of the different species: Eragrostis pilosa (29.9 %) > Baccharis coridifolia (18.1 %) > Paspalum sp. (9.8%) > Senecio sp. (8.0 %) > Aspilia montevidensis (7.7 %) > Lolium multiflorum (7.0 %) > Sporobolus sp. (6.1 %) > Erianthus angustifolius (5.5 %) > Conyza bonariensis (4.0 %) > Cynodon dactylon (3.9 %). The third development period differed statistically from the other periods and represented 63% and 60% of the total macro and micronutrients allocated to the biomass. Statistical analyzes show that weed biomass production has a seasonal behavior, with phase 3 of development accounting for more than half (54.8%) of all quantified biomass, followed by phase 2 (30.6%) and 1 (14.6%). |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-09-13T20:02:14Z 2022-09-13T20:02:14Z 2022-08-01 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/doctoralThesis |
format |
doctoralThesis |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://repositorio.ufsm.br/handle/1/26140 |
dc.identifier.dark.fl_str_mv |
ark:/26339/001300000z5n8 |
url |
http://repositorio.ufsm.br/handle/1/26140 |
identifier_str_mv |
ark:/26339/001300000z5n8 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.rights.driver.fl_str_mv |
Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Federal de Santa Maria Brasil Recursos Florestais e Engenharia Florestal UFSM Programa de Pós-Graduação em Engenharia Florestal Centro de Ciências Rurais |
publisher.none.fl_str_mv |
Universidade Federal de Santa Maria Brasil Recursos Florestais e Engenharia Florestal UFSM Programa de Pós-Graduação em Engenharia Florestal Centro de Ciências Rurais |
dc.source.none.fl_str_mv |
reponame:Manancial - Repositório Digital da UFSM instname:Universidade Federal de Santa Maria (UFSM) instacron:UFSM |
instname_str |
Universidade Federal de Santa Maria (UFSM) |
instacron_str |
UFSM |
institution |
UFSM |
reponame_str |
Manancial - Repositório Digital da UFSM |
collection |
Manancial - Repositório Digital da UFSM |
repository.name.fl_str_mv |
Manancial - Repositório Digital da UFSM - Universidade Federal de Santa Maria (UFSM) |
repository.mail.fl_str_mv |
atendimento.sib@ufsm.br||tedebc@gmail.com |
_version_ |
1815172417205567488 |