Proposição de doses e níveis críticos de nitrogênio e potássio em videiras
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Tipo de documento: | Dissertação |
Idioma: | por |
Título da fonte: | Manancial - Repositório Digital da UFSM |
Texto Completo: | http://repositorio.ufsm.br/handle/1/22007 |
Resumo: | When the soil does not have the capacity to supply enough nutrients to supplement the demand of the grapevines, it becomes necessary to carry out fertilization. However, it is not sufficiently known which the critical levels of nitrogen (N) and potassium (K) in leaves, and of K available in the soil, which may assist in defining the real need for application. But, it is also not known the best doses of N and K to be applied, aiming at high productivity, but also must with adequate oenological characteristics. The present study aimed to establish the best doses of maximum technical efficiency (MTE) and critical levels (NC) of N, in grapevine cultivars, aiming at maximum productivity and must with appreciated oenological variables, in sandy soils and subtropical climate. Two studies were carried out with Chardonnay and Pinot Noir cultivars, in scattered vineyards, in the municipality of Santana do Livramento (RS), region of Campanha Gaúcha. Study 1 addressed “Doses and critical levels of N in leaves of Chardonnay and Pinot Noir grapevines to obtain yields and must with desired chemical variables”. The treatments were 0, 10, 20, 40, 60 and 80 kg N ha-1. Study 2 dealt with the “Use of Bayesian hierarchical models to determine critical levels of K in leaves of Chardonnay and Pinot Noir grapevines and in the soil”. The treatments were 0, 20, 40, 60 and 80 kg K2O ha-1. In both studies, evaluations occur in the 2016/17, 2017/18 and 2018/19 crop seasons. Leaves were collected at flowering and veraison, to determine total N and K. Grape production and its components were determined. Total soluble solids (TSS), total titratable acidity (TTA) and total anthocyanins (TA) were evaluated in the must. In Study 1, the NC of N in the leaves during flowering to increase productivity were 21.35 g N kg-1 and 23.93 g N kg-1, for Chardonnay and Pinot Noir, respectively. While the veraison was 19.78 g N kg-1 for Chardonnay and 20.62 g N kg-1 for Pinot Noir. The MTE for Chardonnay was 49 kg N ha-1 in the 2016/17 season and 80 kg N ha-1 in the 2017/18 and 2018/19 crop seasons. Meanwhile, at Pinot Noir it was not possible to adjust the MTE. In Study 2, the NC of K in leaves during flowering and veraison did not differ between cultivars. While in the soil, the NC in the 0-10 cm layer were 41.4 and 44.9 mg K dm-3 and, 33.5 and 30.1 mg K dm-3, in the 0-20 layer, for Chardonnay and Pinot Noir, respectively. Could not adjust MTE for Chardonnay. For Pinot Noir, the adjustment for production was possible in the 2017/18 crop season, with a dose of 38.3 kg K2O ha-1. |
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Proposição de doses e níveis críticos de nitrogênio e potássio em videirasProposition of doses and critical levels of nitrogen and potassium in vinesNíveis críticosDose de máxima eficiência técnicaVitis viníferasModelos hierárquicos bayesianosCritical levelsMaximum technical efficiency doseVitis viniferasBayesian hierarchical modelsCNPQ::CIENCIAS AGRARIAS::AGRONOMIA::CIENCIA DO SOLOWhen the soil does not have the capacity to supply enough nutrients to supplement the demand of the grapevines, it becomes necessary to carry out fertilization. However, it is not sufficiently known which the critical levels of nitrogen (N) and potassium (K) in leaves, and of K available in the soil, which may assist in defining the real need for application. But, it is also not known the best doses of N and K to be applied, aiming at high productivity, but also must with adequate oenological characteristics. The present study aimed to establish the best doses of maximum technical efficiency (MTE) and critical levels (NC) of N, in grapevine cultivars, aiming at maximum productivity and must with appreciated oenological variables, in sandy soils and subtropical climate. Two studies were carried out with Chardonnay and Pinot Noir cultivars, in scattered vineyards, in the municipality of Santana do Livramento (RS), region of Campanha Gaúcha. Study 1 addressed “Doses and critical levels of N in leaves of Chardonnay and Pinot Noir grapevines to obtain yields and must with desired chemical variables”. The treatments were 0, 10, 20, 40, 60 and 80 kg N ha-1. Study 2 dealt with the “Use of Bayesian hierarchical models to determine critical levels of K in leaves of Chardonnay and Pinot Noir grapevines and in the soil”. The treatments were 0, 20, 40, 60 and 80 kg K2O ha-1. In both studies, evaluations occur in the 2016/17, 2017/18 and 2018/19 crop seasons. Leaves were collected at flowering and veraison, to determine total N and K. Grape production and its components were determined. Total soluble solids (TSS), total titratable acidity (TTA) and total anthocyanins (TA) were evaluated in the must. In Study 1, the NC of N in the leaves during flowering to increase productivity were 21.35 g N kg-1 and 23.93 g N kg-1, for Chardonnay and Pinot Noir, respectively. While the veraison was 19.78 g N kg-1 for Chardonnay and 20.62 g N kg-1 for Pinot Noir. The MTE for Chardonnay was 49 kg N ha-1 in the 2016/17 season and 80 kg N ha-1 in the 2017/18 and 2018/19 crop seasons. Meanwhile, at Pinot Noir it was not possible to adjust the MTE. In Study 2, the NC of K in leaves during flowering and veraison did not differ between cultivars. While in the soil, the NC in the 0-10 cm layer were 41.4 and 44.9 mg K dm-3 and, 33.5 and 30.1 mg K dm-3, in the 0-20 layer, for Chardonnay and Pinot Noir, respectively. Could not adjust MTE for Chardonnay. For Pinot Noir, the adjustment for production was possible in the 2017/18 crop season, with a dose of 38.3 kg K2O ha-1.Conselho Nacional de Pesquisa e Desenvolvimento Científico e Tecnológico - CNPqFundação de Amparo à Pesquisa do Estado do Rio Grande do Sul - FAPERGSQuando o solo não possuir a capacidade de fornecer a quantidade de nutrientes suficiente para suprir a demanda das videiras, torna-se necessário realizar a adubação. Contudo, ainda não é suficientemente conhecido quais os níveis críticos de nitrogênio (N) e potássio (K) em folhas, e de K disponível no solo, que poderão auxiliar na definição da real necessidade de aplicação. Mas, também não sabe-se as melhores doses de N e K a serem aplicadas, visando elevadas produtividades, associadas a características enológicas adequadas. O presente estudo objetivou estabelecer as doses de máxima eficiência técnica (MET) e níveis críticos (NC) de N, em cultivares de viníferas, visando máxima produtividades e mosto com variáveis enológicas apreciadas, em solos arenosos e clima subtropical. Dois Estudos foram conduzidos com cultivares Chardonnay e Pinot Noir, em vinhedos em espaldeira, no município de Santana do Livramento (RS), região da Campanha Gaúcha. O Estudo 1 abordou “Doses e níveis críticos de N em folhas de videiras Chardonnay e Pinot Noir para obtenção de produtividades e mosto com variáveis químicas desejadas”. Os tratamentos foram 0, 10, 20, 40, 60 e 80 kg N ha-1. O Estudo 2 tratou de “Doses de máxima eficiência técnica e uso de modelos hierárquicos bayesianos no estabelecimento de níveis críticos de potássio em folhas e solo em videiras Chardonnay e Pinot Noir”. Os tratamentos foram 0, 20, 40, 60 e 80 kg K2O ha-1. Em ambos Estudos, as avaliações ocorrem nas safras 2016/17, 2017/18 e 2018/19. Folhas foram coletadas no florescimento e na mudança de cor das bagas (veraison), para determinação de N e K total. A produção de uva e seus componentes foram determinados. Os sólidos solúveis totais (SST), acidez total titulável (ATT) e antocianinas totais (AT) foram avaliados no mosto. No Estudo 1, os NC de N nas folhas no florescimento para incrementar a produtividade foram de 21,35 g N kg-1 e 23,93 g N kg-1, para Chardonnay e Pinot Noir, respectivamente. Enquanto, na veraison foi de 19,78 g N kg-1 para Chardonnay e, 20,62 g N kg-1 para Pinot Noir. A MET para Chardonnay foi de 49 kg N ha-1 na safra 2016/17 e 80 kg N ha-1 nas safras 2017/18 e 2018/19. Enquanto, na Pinot Noir não foi possível ajustar a MET. No Estudo 2, o NC de K em folhas no florescimento e veraison não diferiram entre as cultivares. Enquanto no solo, os NC na camada de 0-10 cm foram de 41,4 e 44,9 mg K dm-3 e, 33,5 e 30,1 mg K dm-3, na camada de 0-20, para Chardonnay e Pinot Noir, respectivamente. Não foi possível ajustar MET para Chardonnay. Enquanto, para Pinot Noir, o ajuste para produção foi possível na safra 2017/18, com a dose de 38,3 kg K2O ha-1.Universidade Federal de Santa MariaBrasilAgronomiaUFSMPrograma de Pós-Graduação em Ciência do SoloCentro de Ciências RuraisBrunetto, Gustavohttp://lattes.cnpq.br/1185169003700830Tiecher, Tadeu LuisDe Conti , LessandroCiotta, Marlise NaraTassinari, Adriele2021-08-19T18:07:41Z2021-08-19T18:07:41Z2020-08-31info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisapplication/pdfhttp://repositorio.ufsm.br/handle/1/22007porAttribution-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:UFSM2021-08-20T06:00:52Zoai:repositorio.ufsm.br:1/22007Biblioteca Digital de Teses e Dissertaçõeshttps://repositorio.ufsm.br/ONGhttps://repositorio.ufsm.br/oai/requestatendimento.sib@ufsm.br||tedebc@gmail.comopendoar:2021-08-20T06:00:52Manancial - Repositório Digital da UFSM - Universidade Federal de Santa Maria (UFSM)false |
dc.title.none.fl_str_mv |
Proposição de doses e níveis críticos de nitrogênio e potássio em videiras Proposition of doses and critical levels of nitrogen and potassium in vines |
title |
Proposição de doses e níveis críticos de nitrogênio e potássio em videiras |
spellingShingle |
Proposição de doses e níveis críticos de nitrogênio e potássio em videiras Tassinari, Adriele Níveis críticos Dose de máxima eficiência técnica Vitis viníferas Modelos hierárquicos bayesianos Critical levels Maximum technical efficiency dose Vitis viniferas Bayesian hierarchical models CNPQ::CIENCIAS AGRARIAS::AGRONOMIA::CIENCIA DO SOLO |
title_short |
Proposição de doses e níveis críticos de nitrogênio e potássio em videiras |
title_full |
Proposição de doses e níveis críticos de nitrogênio e potássio em videiras |
title_fullStr |
Proposição de doses e níveis críticos de nitrogênio e potássio em videiras |
title_full_unstemmed |
Proposição de doses e níveis críticos de nitrogênio e potássio em videiras |
title_sort |
Proposição de doses e níveis críticos de nitrogênio e potássio em videiras |
author |
Tassinari, Adriele |
author_facet |
Tassinari, Adriele |
author_role |
author |
dc.contributor.none.fl_str_mv |
Brunetto, Gustavo http://lattes.cnpq.br/1185169003700830 Tiecher, Tadeu Luis De Conti , Lessandro Ciotta, Marlise Nara |
dc.contributor.author.fl_str_mv |
Tassinari, Adriele |
dc.subject.por.fl_str_mv |
Níveis críticos Dose de máxima eficiência técnica Vitis viníferas Modelos hierárquicos bayesianos Critical levels Maximum technical efficiency dose Vitis viniferas Bayesian hierarchical models CNPQ::CIENCIAS AGRARIAS::AGRONOMIA::CIENCIA DO SOLO |
topic |
Níveis críticos Dose de máxima eficiência técnica Vitis viníferas Modelos hierárquicos bayesianos Critical levels Maximum technical efficiency dose Vitis viniferas Bayesian hierarchical models CNPQ::CIENCIAS AGRARIAS::AGRONOMIA::CIENCIA DO SOLO |
description |
When the soil does not have the capacity to supply enough nutrients to supplement the demand of the grapevines, it becomes necessary to carry out fertilization. However, it is not sufficiently known which the critical levels of nitrogen (N) and potassium (K) in leaves, and of K available in the soil, which may assist in defining the real need for application. But, it is also not known the best doses of N and K to be applied, aiming at high productivity, but also must with adequate oenological characteristics. The present study aimed to establish the best doses of maximum technical efficiency (MTE) and critical levels (NC) of N, in grapevine cultivars, aiming at maximum productivity and must with appreciated oenological variables, in sandy soils and subtropical climate. Two studies were carried out with Chardonnay and Pinot Noir cultivars, in scattered vineyards, in the municipality of Santana do Livramento (RS), region of Campanha Gaúcha. Study 1 addressed “Doses and critical levels of N in leaves of Chardonnay and Pinot Noir grapevines to obtain yields and must with desired chemical variables”. The treatments were 0, 10, 20, 40, 60 and 80 kg N ha-1. Study 2 dealt with the “Use of Bayesian hierarchical models to determine critical levels of K in leaves of Chardonnay and Pinot Noir grapevines and in the soil”. The treatments were 0, 20, 40, 60 and 80 kg K2O ha-1. In both studies, evaluations occur in the 2016/17, 2017/18 and 2018/19 crop seasons. Leaves were collected at flowering and veraison, to determine total N and K. Grape production and its components were determined. Total soluble solids (TSS), total titratable acidity (TTA) and total anthocyanins (TA) were evaluated in the must. In Study 1, the NC of N in the leaves during flowering to increase productivity were 21.35 g N kg-1 and 23.93 g N kg-1, for Chardonnay and Pinot Noir, respectively. While the veraison was 19.78 g N kg-1 for Chardonnay and 20.62 g N kg-1 for Pinot Noir. The MTE for Chardonnay was 49 kg N ha-1 in the 2016/17 season and 80 kg N ha-1 in the 2017/18 and 2018/19 crop seasons. Meanwhile, at Pinot Noir it was not possible to adjust the MTE. In Study 2, the NC of K in leaves during flowering and veraison did not differ between cultivars. While in the soil, the NC in the 0-10 cm layer were 41.4 and 44.9 mg K dm-3 and, 33.5 and 30.1 mg K dm-3, in the 0-20 layer, for Chardonnay and Pinot Noir, respectively. Could not adjust MTE for Chardonnay. For Pinot Noir, the adjustment for production was possible in the 2017/18 crop season, with a dose of 38.3 kg K2O ha-1. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-08-31 2021-08-19T18:07:41Z 2021-08-19T18:07:41Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/masterThesis |
format |
masterThesis |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://repositorio.ufsm.br/handle/1/22007 |
url |
http://repositorio.ufsm.br/handle/1/22007 |
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 Agronomia UFSM Programa de Pós-Graduação em Ciência do Solo Centro de Ciências Rurais |
publisher.none.fl_str_mv |
Universidade Federal de Santa Maria Brasil Agronomia UFSM Programa de Pós-Graduação em Ciência do Solo 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) |
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UFSM |
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UFSM |
reponame_str |
Manancial - Repositório Digital da UFSM |
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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 |
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1805922086420480000 |