Effect of Spray Tips and Mix Deposition on Common Water Hyacinth Growing with Varied Population Arrangements of Salvinia and Water Lettuce
Autor(a) principal: | |
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Data de Publicação: | 2009 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://www.apms.org/japm/JAPM_2009.html http://hdl.handle.net/11449/5516 |
Resumo: | Water hyacinth (Eichhornia crassipes) and other free floating plants continue to cause significant management problems in Brazilian reservoirs constructed for power generation. Herbicide management for control of these free-floating plants is currently under evaluation. In this study we evaluated two types of spray tips (ConeJet TXVK-8 and TeeJet DG 11002 VS) and the amount of spray mix deposited onto water hyacinth (Eichhornia crassipes) plants organized in different population arrangements with eared watermoss (Salvinia auriculata) and water lettuce (Pistia stratiotes) plants. In addition to a 100% water hyacinth arrangement, we tested arrangements with either eared watermoss or water lettuce at 75:25%, 50:50%, and 25:75%, plus a triple density with the three species placed equally at a 33% proportion. Dye solutions of FDC Yellow No. 5 at 3500 ppm and FDC Blue No. 1 at 1000 ppm were used as spraying tracers for TXVK-8 and DG 11002 VS nozzles, respectively. Both solutions were sprayed on the same plot at 30-min intervals through a CO(2) pressured backpack knapsack calibrated to deliver a spray volume around 200 L/ha. The TXVK-8 tip provided greater spray mix deposition when compared to the DG 11002VS tip, regardless of the plant proportions. For both spray tips, higher proportions of eared watermoss and the triple association among the plants provided the highest spray mix deposition on water hyacinth plants. The increase of spray mix deposition is likely related to the increase of eared watermoss or water lettuce as well as the decrease of water hyacinth plants in the association and consequent decreases of self covering among water hyacinth leaves. Lake managers should consider that improved herbicide uptake is possible through the choice of nozzle as well as applying herbicides to hyacinth before it forms dense monocultures or dense mixtures with other free-floating plants. |
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Effect of Spray Tips and Mix Deposition on Common Water Hyacinth Growing with Varied Population Arrangements of Salvinia and Water LettuceEichhornia crassipesnozzlePistia stratiotesSalvinia auriculataspray technologyWater hyacinth (Eichhornia crassipes) and other free floating plants continue to cause significant management problems in Brazilian reservoirs constructed for power generation. Herbicide management for control of these free-floating plants is currently under evaluation. In this study we evaluated two types of spray tips (ConeJet TXVK-8 and TeeJet DG 11002 VS) and the amount of spray mix deposited onto water hyacinth (Eichhornia crassipes) plants organized in different population arrangements with eared watermoss (Salvinia auriculata) and water lettuce (Pistia stratiotes) plants. In addition to a 100% water hyacinth arrangement, we tested arrangements with either eared watermoss or water lettuce at 75:25%, 50:50%, and 25:75%, plus a triple density with the three species placed equally at a 33% proportion. Dye solutions of FDC Yellow No. 5 at 3500 ppm and FDC Blue No. 1 at 1000 ppm were used as spraying tracers for TXVK-8 and DG 11002 VS nozzles, respectively. Both solutions were sprayed on the same plot at 30-min intervals through a CO(2) pressured backpack knapsack calibrated to deliver a spray volume around 200 L/ha. The TXVK-8 tip provided greater spray mix deposition when compared to the DG 11002VS tip, regardless of the plant proportions. For both spray tips, higher proportions of eared watermoss and the triple association among the plants provided the highest spray mix deposition on water hyacinth plants. The increase of spray mix deposition is likely related to the increase of eared watermoss or water lettuce as well as the decrease of water hyacinth plants in the association and consequent decreases of self covering among water hyacinth leaves. Lake managers should consider that improved herbicide uptake is possible through the choice of nozzle as well as applying herbicides to hyacinth before it forms dense monocultures or dense mixtures with other free-floating plants.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)UFMT, BR-78550000 Sinop, MT, BrazilUNESP, Fac Ciencias Agron, Dept Prod Vegetal Agr Fazenda Expt Lageado, BR-18610307 Botucatu, SP, BrazilUNESP, Fac Ciencias Agron, Dept Prod Vegetal Agr Fazenda Expt Lageado, BR-18610307 Botucatu, SP, BrazilAquatic Plant Management Soc, IncUniversidade Federal de Mato Grosso (UFMT)Universidade Estadual Paulista (Unesp)De Marchi, Sidnei RobertoMartins, D. [UNESP]Da Costa, N. V. [UNESP]Domingues, V. D. [UNESP]2014-05-20T13:20:08Z2014-05-20T13:20:08Z2009-07-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article110-115http://www.apms.org/japm/JAPM_2009.htmlJournal of Aquatic Plant Management. Lehigh Acres: Aquatic Plant Management Soc, Inc, v. 47, p. 110-115, 2009.0146-6623http://hdl.handle.net/11449/5516WOS:0002722049000042340617938554636Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal of Aquatic Plant Management0.2750,300info:eu-repo/semantics/openAccess2024-04-30T19:28:29Zoai:repositorio.unesp.br:11449/5516Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T17:03:45.737710Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Effect of Spray Tips and Mix Deposition on Common Water Hyacinth Growing with Varied Population Arrangements of Salvinia and Water Lettuce |
title |
Effect of Spray Tips and Mix Deposition on Common Water Hyacinth Growing with Varied Population Arrangements of Salvinia and Water Lettuce |
spellingShingle |
Effect of Spray Tips and Mix Deposition on Common Water Hyacinth Growing with Varied Population Arrangements of Salvinia and Water Lettuce De Marchi, Sidnei Roberto Eichhornia crassipes nozzle Pistia stratiotes Salvinia auriculata spray technology |
title_short |
Effect of Spray Tips and Mix Deposition on Common Water Hyacinth Growing with Varied Population Arrangements of Salvinia and Water Lettuce |
title_full |
Effect of Spray Tips and Mix Deposition on Common Water Hyacinth Growing with Varied Population Arrangements of Salvinia and Water Lettuce |
title_fullStr |
Effect of Spray Tips and Mix Deposition on Common Water Hyacinth Growing with Varied Population Arrangements of Salvinia and Water Lettuce |
title_full_unstemmed |
Effect of Spray Tips and Mix Deposition on Common Water Hyacinth Growing with Varied Population Arrangements of Salvinia and Water Lettuce |
title_sort |
Effect of Spray Tips and Mix Deposition on Common Water Hyacinth Growing with Varied Population Arrangements of Salvinia and Water Lettuce |
author |
De Marchi, Sidnei Roberto |
author_facet |
De Marchi, Sidnei Roberto Martins, D. [UNESP] Da Costa, N. V. [UNESP] Domingues, V. D. [UNESP] |
author_role |
author |
author2 |
Martins, D. [UNESP] Da Costa, N. V. [UNESP] Domingues, V. D. [UNESP] |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade Federal de Mato Grosso (UFMT) Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
De Marchi, Sidnei Roberto Martins, D. [UNESP] Da Costa, N. V. [UNESP] Domingues, V. D. [UNESP] |
dc.subject.por.fl_str_mv |
Eichhornia crassipes nozzle Pistia stratiotes Salvinia auriculata spray technology |
topic |
Eichhornia crassipes nozzle Pistia stratiotes Salvinia auriculata spray technology |
description |
Water hyacinth (Eichhornia crassipes) and other free floating plants continue to cause significant management problems in Brazilian reservoirs constructed for power generation. Herbicide management for control of these free-floating plants is currently under evaluation. In this study we evaluated two types of spray tips (ConeJet TXVK-8 and TeeJet DG 11002 VS) and the amount of spray mix deposited onto water hyacinth (Eichhornia crassipes) plants organized in different population arrangements with eared watermoss (Salvinia auriculata) and water lettuce (Pistia stratiotes) plants. In addition to a 100% water hyacinth arrangement, we tested arrangements with either eared watermoss or water lettuce at 75:25%, 50:50%, and 25:75%, plus a triple density with the three species placed equally at a 33% proportion. Dye solutions of FDC Yellow No. 5 at 3500 ppm and FDC Blue No. 1 at 1000 ppm were used as spraying tracers for TXVK-8 and DG 11002 VS nozzles, respectively. Both solutions were sprayed on the same plot at 30-min intervals through a CO(2) pressured backpack knapsack calibrated to deliver a spray volume around 200 L/ha. The TXVK-8 tip provided greater spray mix deposition when compared to the DG 11002VS tip, regardless of the plant proportions. For both spray tips, higher proportions of eared watermoss and the triple association among the plants provided the highest spray mix deposition on water hyacinth plants. The increase of spray mix deposition is likely related to the increase of eared watermoss or water lettuce as well as the decrease of water hyacinth plants in the association and consequent decreases of self covering among water hyacinth leaves. Lake managers should consider that improved herbicide uptake is possible through the choice of nozzle as well as applying herbicides to hyacinth before it forms dense monocultures or dense mixtures with other free-floating plants. |
publishDate |
2009 |
dc.date.none.fl_str_mv |
2009-07-01 2014-05-20T13:20:08Z 2014-05-20T13:20:08Z |
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.apms.org/japm/JAPM_2009.html Journal of Aquatic Plant Management. Lehigh Acres: Aquatic Plant Management Soc, Inc, v. 47, p. 110-115, 2009. 0146-6623 http://hdl.handle.net/11449/5516 WOS:000272204900004 2340617938554636 |
url |
http://www.apms.org/japm/JAPM_2009.html http://hdl.handle.net/11449/5516 |
identifier_str_mv |
Journal of Aquatic Plant Management. Lehigh Acres: Aquatic Plant Management Soc, Inc, v. 47, p. 110-115, 2009. 0146-6623 WOS:000272204900004 2340617938554636 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Journal of Aquatic Plant Management 0.275 0,300 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
110-115 |
dc.publisher.none.fl_str_mv |
Aquatic Plant Management Soc, Inc |
publisher.none.fl_str_mv |
Aquatic Plant Management Soc, Inc |
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 |
|
_version_ |
1808128748764004352 |