Épocas de aplicação de nitrogênio no feijoeiro comum (Phaseolus vulgaris L.) baseadas no índice de suficiência de clorofila

Detalhes bibliográficos
Autor(a) principal: Menegol, Diego Ricardo
Data de Publicação: 2014
Tipo de documento: Dissertação
Idioma: por
Título da fonte: Manancial - Repositório Digital da UFSM
dARK ID: ark:/26339/001300000hc3p
Texto Completo: http://repositorio.ufsm.br/handle/1/4931
Resumo: Due to the high economic and social importance of the common bean in Brazil, still has doubts regarding the manner mode and use of topdressing nitrogen fertilizer aiming to obtain high yields, concern about the excessive use of nitrogenous fertilizers, associated with the development of new tools to assess quickly and accurately the nutritional status of crops.TIn this sense, the study aimed to evaluate the use of Sufficiency Chlorophyll Index (SCI) as a tool to identify the necessity for application and estimate the top dress nitrogen rate (N) should be applied, to obtain the common bean yield and its yield components and monitor the behavior of the index Falker chlorophyll (IFC), the normalized difference vegetation index (NDVI), the N content in the leaf tissue and available N in the soil with different N rates application and nitrogen topdressing application timing . The experimental design was randomized blocks in a factorial arrangement of 8 x 5 x 4 (N rates x topdressing application timing x evaluation periods), with three repetitions. N rates evaluated were: 0, 40, 80, 120, 160, 200, 240 and 280 kg ha-1, topdressing application. The evaluation periods were: 15, 25, 35 and 45 days after emergence (DAE). The application timing were as follows: E1: application of N rates on seeding; E2: application of N rates at 10 DAE; E3: application of N rates when the SCI ≤ 95%; E4: application of N rates at 20 DAE and E5: application of N rates when SCI ≤ 90%. From the results obtained it was concluded that the SCI was efficient to identify differences in IFC levels of 15 to 40 DAE, however, it was not possible to estimate the N rates that should be applied according to the SCI, because the yield showed no significance differences due to N rates and application timing. The mean yield was 2,061 kg ha-1. With increasing of N rates occurs linear increase in the number of pods plant-1 and a linear decrease in the number of grain legume-1. Soil mineral N content showed linear increase with increasing N rates, but were not showed the same behavior to IFC, NDVI and leaf tissue N values, which showed low significant variation depending of the N rates. NDVI increased over DAE, reaching the highest value between 35 and 45 DAE and in 45 DAE the IFC values did not differ among treatments.
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spelling Épocas de aplicação de nitrogênio no feijoeiro comum (Phaseolus vulgaris L.) baseadas no índice de suficiência de clorofilaNitrogen application timing in common bean (Phaseolus vulgaris L.) based in the sufficiency chlorophyll indexManejo da adubação nitrogenadaÍndice de vegetação por diferença normalizadaNitrogen fertilization managementNormalized difference vegetation indexCNPQ::CIENCIAS AGRARIAS::AGRONOMIADue to the high economic and social importance of the common bean in Brazil, still has doubts regarding the manner mode and use of topdressing nitrogen fertilizer aiming to obtain high yields, concern about the excessive use of nitrogenous fertilizers, associated with the development of new tools to assess quickly and accurately the nutritional status of crops.TIn this sense, the study aimed to evaluate the use of Sufficiency Chlorophyll Index (SCI) as a tool to identify the necessity for application and estimate the top dress nitrogen rate (N) should be applied, to obtain the common bean yield and its yield components and monitor the behavior of the index Falker chlorophyll (IFC), the normalized difference vegetation index (NDVI), the N content in the leaf tissue and available N in the soil with different N rates application and nitrogen topdressing application timing . The experimental design was randomized blocks in a factorial arrangement of 8 x 5 x 4 (N rates x topdressing application timing x evaluation periods), with three repetitions. N rates evaluated were: 0, 40, 80, 120, 160, 200, 240 and 280 kg ha-1, topdressing application. The evaluation periods were: 15, 25, 35 and 45 days after emergence (DAE). The application timing were as follows: E1: application of N rates on seeding; E2: application of N rates at 10 DAE; E3: application of N rates when the SCI ≤ 95%; E4: application of N rates at 20 DAE and E5: application of N rates when SCI ≤ 90%. From the results obtained it was concluded that the SCI was efficient to identify differences in IFC levels of 15 to 40 DAE, however, it was not possible to estimate the N rates that should be applied according to the SCI, because the yield showed no significance differences due to N rates and application timing. The mean yield was 2,061 kg ha-1. With increasing of N rates occurs linear increase in the number of pods plant-1 and a linear decrease in the number of grain legume-1. Soil mineral N content showed linear increase with increasing N rates, but were not showed the same behavior to IFC, NDVI and leaf tissue N values, which showed low significant variation depending of the N rates. NDVI increased over DAE, reaching the highest value between 35 and 45 DAE and in 45 DAE the IFC values did not differ among treatments.Devido à elevada importância econômica e social do feijoeiro para o Brasil, ainda persistem dúvidas quanto a o modo e uso de fertilizante nitrogenado em cobertura visando à obtenção de altas produtividades, a preocupação com o uso excessivo de fertilizantes nitrogenados, associado ao desenvolvimento de novas ferramentas para avaliar o estado nutricional das culturas de maneira rápida e precisa. Nesse sentido este estudo tem como objetivos avaliar a utilização do Índice de Suficiência de Clorofila (ISC) como ferramenta para identificar a necessidade de aplicação e estimar qual a dose de nitrogênio (N) a ser aplicada em cobertura, obter a produtividade do feijoeiro comum e seus componentes de rendimento e monitorar o comportamento do índice de clorofila falker (ICF), do índice de vegetação por diferença normalizada (NDVI), do teor de N no tecido foliar e do N mineral no solo, com a aplicação de diferentes doses de N e épocas de aplicação do N em cobertura. O delineamento experimental utilizado foi o de blocos ao acaso, num arranjo fatorial de 8 x 5 x 4 (doses de N x épocas da aplicação do N em cobertura x épocas de avaliação), com três repetições. As doses de N avaliadas foram de 0, 40, 80, 120, 160, 200, 240 e 280 kg ha-1, aplicados em cobertura. As épocas de avaliação foram aos 15, 25, 35 e 45 dias após a emergência (DAE). As épocas de aplicação do N foram os seguintes: E1: aplicação das doses no dia da semeadura; E2: aplicação das doses de N aos 10 DAE; E3: aplicação das doses de N quando o ISC ≤ 95%; E4: aplicação das doses de N aos 20 DAE e E5: aplicação das doses de N quando ISC ≤ 90%. A partir dos resultados obtidos concluiu-se que o ISC foi eficiente para identificar diferenças nos teores de ICF dos 15 aos 40 DAE, porem não foi possível estimar qual a dose de N que deveria ser aplicada em função dos ISC, pois a produtividade não apresentou diferença para as fontes de variação dose e manejo, a média da produtividade foi de 2.061 kg ha1. Com o incremento das doses de N ocorre um aumento linear do número de legumes planta-1 e uma redução linear do número de grãos legume-1. O Teor de N mineral no solo apresentou incremento linear com o aumento das doses, mas não repercutiu em mesmo comportamento das variáveis ICF, NDVI e N no tecido foliar, os quais apresentam variação pouco significativa em função das doses. O NDVI aumentou com o passar dos DAE, atingindo valor mais elevado entre 35 e 45 DAE e aos 45 DAE o ICF não diferiu entre os tratamentos.Universidade Federal de Santa MariaBRAgronomiaUFSMPrograma de Pós-Graduação em Agronomia - Agricultura e AmbienteSanti, Antônio Luishttp://lattes.cnpq.br/6223011493102530Ros, Clovis Orlando dahttp://lattes.cnpq.br/6947821986020400Fiorin, Jackson ErnaniMenegol, Diego Ricardo2014-11-192014-11-192014-03-17info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisapplication/pdfapplication/pdfMENEGOL, Diego Ricardo. Nitrogen application timing in common bean (Phaseolus vulgaris L.) based in the sufficiency chlorophyll index. 2014. 69 f. Dissertação (Mestrado em Agronomia) - Universidade Federal de Santa Maria, Santa Maria, 2014.http://repositorio.ufsm.br/handle/1/4931ark:/26339/001300000hc3pporinfo:eu-repo/semantics/openAccessreponame:Manancial - Repositório Digital da UFSMinstname:Universidade Federal de Santa Maria (UFSM)instacron:UFSM2022-01-11T12:33:43Zoai:repositorio.ufsm.br:1/4931Biblioteca Digital de Teses e Dissertaçõeshttps://repositorio.ufsm.br/ONGhttps://repositorio.ufsm.br/oai/requestatendimento.sib@ufsm.br||tedebc@gmail.comopendoar:2022-01-11T12:33:43Manancial - Repositório Digital da UFSM - Universidade Federal de Santa Maria (UFSM)false
dc.title.none.fl_str_mv Épocas de aplicação de nitrogênio no feijoeiro comum (Phaseolus vulgaris L.) baseadas no índice de suficiência de clorofila
Nitrogen application timing in common bean (Phaseolus vulgaris L.) based in the sufficiency chlorophyll index
title Épocas de aplicação de nitrogênio no feijoeiro comum (Phaseolus vulgaris L.) baseadas no índice de suficiência de clorofila
spellingShingle Épocas de aplicação de nitrogênio no feijoeiro comum (Phaseolus vulgaris L.) baseadas no índice de suficiência de clorofila
Menegol, Diego Ricardo
Manejo da adubação nitrogenada
Índice de vegetação por diferença normalizada
Nitrogen fertilization management
Normalized difference vegetation index
CNPQ::CIENCIAS AGRARIAS::AGRONOMIA
title_short Épocas de aplicação de nitrogênio no feijoeiro comum (Phaseolus vulgaris L.) baseadas no índice de suficiência de clorofila
title_full Épocas de aplicação de nitrogênio no feijoeiro comum (Phaseolus vulgaris L.) baseadas no índice de suficiência de clorofila
title_fullStr Épocas de aplicação de nitrogênio no feijoeiro comum (Phaseolus vulgaris L.) baseadas no índice de suficiência de clorofila
title_full_unstemmed Épocas de aplicação de nitrogênio no feijoeiro comum (Phaseolus vulgaris L.) baseadas no índice de suficiência de clorofila
title_sort Épocas de aplicação de nitrogênio no feijoeiro comum (Phaseolus vulgaris L.) baseadas no índice de suficiência de clorofila
author Menegol, Diego Ricardo
author_facet Menegol, Diego Ricardo
author_role author
dc.contributor.none.fl_str_mv Santi, Antônio Luis
http://lattes.cnpq.br/6223011493102530
Ros, Clovis Orlando da
http://lattes.cnpq.br/6947821986020400
Fiorin, Jackson Ernani
dc.contributor.author.fl_str_mv Menegol, Diego Ricardo
dc.subject.por.fl_str_mv Manejo da adubação nitrogenada
Índice de vegetação por diferença normalizada
Nitrogen fertilization management
Normalized difference vegetation index
CNPQ::CIENCIAS AGRARIAS::AGRONOMIA
topic Manejo da adubação nitrogenada
Índice de vegetação por diferença normalizada
Nitrogen fertilization management
Normalized difference vegetation index
CNPQ::CIENCIAS AGRARIAS::AGRONOMIA
description Due to the high economic and social importance of the common bean in Brazil, still has doubts regarding the manner mode and use of topdressing nitrogen fertilizer aiming to obtain high yields, concern about the excessive use of nitrogenous fertilizers, associated with the development of new tools to assess quickly and accurately the nutritional status of crops.TIn this sense, the study aimed to evaluate the use of Sufficiency Chlorophyll Index (SCI) as a tool to identify the necessity for application and estimate the top dress nitrogen rate (N) should be applied, to obtain the common bean yield and its yield components and monitor the behavior of the index Falker chlorophyll (IFC), the normalized difference vegetation index (NDVI), the N content in the leaf tissue and available N in the soil with different N rates application and nitrogen topdressing application timing . The experimental design was randomized blocks in a factorial arrangement of 8 x 5 x 4 (N rates x topdressing application timing x evaluation periods), with three repetitions. N rates evaluated were: 0, 40, 80, 120, 160, 200, 240 and 280 kg ha-1, topdressing application. The evaluation periods were: 15, 25, 35 and 45 days after emergence (DAE). The application timing were as follows: E1: application of N rates on seeding; E2: application of N rates at 10 DAE; E3: application of N rates when the SCI ≤ 95%; E4: application of N rates at 20 DAE and E5: application of N rates when SCI ≤ 90%. From the results obtained it was concluded that the SCI was efficient to identify differences in IFC levels of 15 to 40 DAE, however, it was not possible to estimate the N rates that should be applied according to the SCI, because the yield showed no significance differences due to N rates and application timing. The mean yield was 2,061 kg ha-1. With increasing of N rates occurs linear increase in the number of pods plant-1 and a linear decrease in the number of grain legume-1. Soil mineral N content showed linear increase with increasing N rates, but were not showed the same behavior to IFC, NDVI and leaf tissue N values, which showed low significant variation depending of the N rates. NDVI increased over DAE, reaching the highest value between 35 and 45 DAE and in 45 DAE the IFC values did not differ among treatments.
publishDate 2014
dc.date.none.fl_str_mv 2014-11-19
2014-11-19
2014-03-17
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 MENEGOL, Diego Ricardo. Nitrogen application timing in common bean (Phaseolus vulgaris L.) based in the sufficiency chlorophyll index. 2014. 69 f. Dissertação (Mestrado em Agronomia) - Universidade Federal de Santa Maria, Santa Maria, 2014.
http://repositorio.ufsm.br/handle/1/4931
dc.identifier.dark.fl_str_mv ark:/26339/001300000hc3p
identifier_str_mv MENEGOL, Diego Ricardo. Nitrogen application timing in common bean (Phaseolus vulgaris L.) based in the sufficiency chlorophyll index. 2014. 69 f. Dissertação (Mestrado em Agronomia) - Universidade Federal de Santa Maria, Santa Maria, 2014.
ark:/26339/001300000hc3p
url http://repositorio.ufsm.br/handle/1/4931
dc.language.iso.fl_str_mv por
language por
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Universidade Federal de Santa Maria
BR
Agronomia
UFSM
Programa de Pós-Graduação em Agronomia - Agricultura e Ambiente
publisher.none.fl_str_mv Universidade Federal de Santa Maria
BR
Agronomia
UFSM
Programa de Pós-Graduação em Agronomia - Agricultura e Ambiente
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
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