Alface americana fertirrigada com diferentes doses de ácido fosfórico e hidróxido de potássio

Detalhes bibliográficos
Autor(a) principal: Deus, Angélica Cristina Fernandes [UNESP]
Data de Publicação: 2011
Outros Autores: de Oliveira Costa, Carla Deisiane [UNESP], Foratto, Letícia Cecília [UNESP], Fernandes, Dirceu Maximino [UNESP], Carribeiro, Lívia Sancinetti [UNESP]
Tipo de documento: Artigo
Idioma: eng
por
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://irriga.fca.unesp.br/index.php/irriga/article/view/197
http://hdl.handle.net/11449/72670
Resumo: Fertirrigation with phosphoric acid has been considered as an option to avoid drips from clogging. In some cases, this acid cause soil acidification and it can be substituted bypotassium hydroxide. This study had the objective of evaluating the effects of different phosphoric acid and potassium hydroxide doses, applied via fertirrigation, on soil fertility, plant nutrition and lettuce yield, compared to the conventional fertilization system. The experiment was carried out in greenhouse, in the College of Agricultural Sciences, FCA/UNESP, Botucatu-SP-Brazil. The experimental design was the completely randomized block, with 6 treatments and 4 replications. Treatments consisted of the combinations of doses (25% and 50% of the recommended complete dose for the lettuce) and application ofcomplete dose (100%) of phosphorus (P) and potassium (K) applied via fertirrigation, and a control (conventional fertilization system). The results showed that P and K availability in soil and nutrient concentration in plants were affected by treatments. Low phosphorus and potassium doses, applied via fertirrigation, were not efficient for the appropriate development of lettuce plants. The results showed that agronomic characteristics and commercial lettuce were affected by doses and application systems, especially the treatment with application of P and K full dose fertirrigation.
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spelling Alface americana fertirrigada com diferentes doses de ácido fosfórico e hidróxido de potássioCrisphead lettuce fertirrigated with different phosphoric acid and potassium hydroxide dosesAcidityDrippingLatuca sativa l.Soil fertilityWet bulbaciditycrop yielddrip irrigationexperimental designfertilizer applicationhydroxideleafy vegetablenutrient availabilitynutrient use efficiencyphosphoruspotassiumsoil fertilitysoil nutrientBotucatuBrazilSao Paulo [Brazil]LactucaFertirrigation with phosphoric acid has been considered as an option to avoid drips from clogging. In some cases, this acid cause soil acidification and it can be substituted bypotassium hydroxide. This study had the objective of evaluating the effects of different phosphoric acid and potassium hydroxide doses, applied via fertirrigation, on soil fertility, plant nutrition and lettuce yield, compared to the conventional fertilization system. The experiment was carried out in greenhouse, in the College of Agricultural Sciences, FCA/UNESP, Botucatu-SP-Brazil. The experimental design was the completely randomized block, with 6 treatments and 4 replications. Treatments consisted of the combinations of doses (25% and 50% of the recommended complete dose for the lettuce) and application ofcomplete dose (100%) of phosphorus (P) and potassium (K) applied via fertirrigation, and a control (conventional fertilization system). The results showed that P and K availability in soil and nutrient concentration in plants were affected by treatments. Low phosphorus and potassium doses, applied via fertirrigation, were not efficient for the appropriate development of lettuce plants. The results showed that agronomic characteristics and commercial lettuce were affected by doses and application systems, especially the treatment with application of P and K full dose fertirrigation.A fertirrigação com ácido fosfórico tem sido uma opção para evitar o entupimento de gotejadores, porém a utilização do mesmo causa acidificação do solo, e para tal problema uma alternativa é o uso de hidróxido de potássio. O trabalho teve por objetivo verificar o efeito de diferentes doses de ácido fosfórico e hidróxido de potássio via fertirrigação comparando-o com a adubação convencional na fertilidade do solo, nutrição e produção de alface. O experimento foi conduzido em casa de vegetação, na Faculdade de Ciências Agronômicas, campus de Botucatu/UNESP. O delineamento experimental foi em blocos ao acaso com 6 tratamentos e 4 repetições. Os tratamentos constituíram-se de combinações entre doses (25% e 50% da dose completa recomendada para a alface) e aplicação de dose completa (100%) de fósforo (P) e de potássio (K), aplicadas via fertirrigação e uma testemunha com aplicação de dose completa na forma convencional. A disponibilidade de P e K no solo e a concentração destes nutrientes na planta foram influenciadas pelos tratamentos. A redução das doses de P e K aplicadas via fertirrigação mostrou-se ineficiente para o bom desenvolvimento da cultura de alface. Os tratamentos influenciaram significativamente as características agronômicas e comerciais da alface, destacando-se o tratamento com aplicação de dose completa de P e K via fertirrigação.Departamento de Recursos Naturais Ciência do Solo, Faculdade de Ciências Agronômicas Universidade Estadual Paulista, Botucatu, SPDepartamento de Recursos Naturais Ciência do Solo, Faculdade de Ciências Agronômicas Universidade Estadual Paulista, Botucatu, SPUniversidade Estadual Paulista (Unesp)Deus, Angélica Cristina Fernandes [UNESP]de Oliveira Costa, Carla Deisiane [UNESP]Foratto, Letícia Cecília [UNESP]Fernandes, Dirceu Maximino [UNESP]Carribeiro, Lívia Sancinetti [UNESP]2014-05-27T11:26:00Z2014-05-27T11:26:00Z2011-09-12info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article125-133application/pdfhttp://irriga.fca.unesp.br/index.php/irriga/article/view/197Irriga, v. 16, n. 2, p. 125-133, 2011.1413-78951808-3765http://hdl.handle.net/11449/726702-s2.0-800524768772-s2.0-80052476877.pdf3541050909331364Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengporIrriga0,283info:eu-repo/semantics/openAccess2024-04-30T19:28:43Zoai:repositorio.unesp.br:11449/72670Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T19:28:34.008392Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Alface americana fertirrigada com diferentes doses de ácido fosfórico e hidróxido de potássio
Crisphead lettuce fertirrigated with different phosphoric acid and potassium hydroxide doses
title Alface americana fertirrigada com diferentes doses de ácido fosfórico e hidróxido de potássio
spellingShingle Alface americana fertirrigada com diferentes doses de ácido fosfórico e hidróxido de potássio
Deus, Angélica Cristina Fernandes [UNESP]
Acidity
Dripping
Latuca sativa l.
Soil fertility
Wet bulb
acidity
crop yield
drip irrigation
experimental design
fertilizer application
hydroxide
leafy vegetable
nutrient availability
nutrient use efficiency
phosphorus
potassium
soil fertility
soil nutrient
Botucatu
Brazil
Sao Paulo [Brazil]
Lactuca
title_short Alface americana fertirrigada com diferentes doses de ácido fosfórico e hidróxido de potássio
title_full Alface americana fertirrigada com diferentes doses de ácido fosfórico e hidróxido de potássio
title_fullStr Alface americana fertirrigada com diferentes doses de ácido fosfórico e hidróxido de potássio
title_full_unstemmed Alface americana fertirrigada com diferentes doses de ácido fosfórico e hidróxido de potássio
title_sort Alface americana fertirrigada com diferentes doses de ácido fosfórico e hidróxido de potássio
author Deus, Angélica Cristina Fernandes [UNESP]
author_facet Deus, Angélica Cristina Fernandes [UNESP]
de Oliveira Costa, Carla Deisiane [UNESP]
Foratto, Letícia Cecília [UNESP]
Fernandes, Dirceu Maximino [UNESP]
Carribeiro, Lívia Sancinetti [UNESP]
author_role author
author2 de Oliveira Costa, Carla Deisiane [UNESP]
Foratto, Letícia Cecília [UNESP]
Fernandes, Dirceu Maximino [UNESP]
Carribeiro, Lívia Sancinetti [UNESP]
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
dc.contributor.author.fl_str_mv Deus, Angélica Cristina Fernandes [UNESP]
de Oliveira Costa, Carla Deisiane [UNESP]
Foratto, Letícia Cecília [UNESP]
Fernandes, Dirceu Maximino [UNESP]
Carribeiro, Lívia Sancinetti [UNESP]
dc.subject.por.fl_str_mv Acidity
Dripping
Latuca sativa l.
Soil fertility
Wet bulb
acidity
crop yield
drip irrigation
experimental design
fertilizer application
hydroxide
leafy vegetable
nutrient availability
nutrient use efficiency
phosphorus
potassium
soil fertility
soil nutrient
Botucatu
Brazil
Sao Paulo [Brazil]
Lactuca
topic Acidity
Dripping
Latuca sativa l.
Soil fertility
Wet bulb
acidity
crop yield
drip irrigation
experimental design
fertilizer application
hydroxide
leafy vegetable
nutrient availability
nutrient use efficiency
phosphorus
potassium
soil fertility
soil nutrient
Botucatu
Brazil
Sao Paulo [Brazil]
Lactuca
description Fertirrigation with phosphoric acid has been considered as an option to avoid drips from clogging. In some cases, this acid cause soil acidification and it can be substituted bypotassium hydroxide. This study had the objective of evaluating the effects of different phosphoric acid and potassium hydroxide doses, applied via fertirrigation, on soil fertility, plant nutrition and lettuce yield, compared to the conventional fertilization system. The experiment was carried out in greenhouse, in the College of Agricultural Sciences, FCA/UNESP, Botucatu-SP-Brazil. The experimental design was the completely randomized block, with 6 treatments and 4 replications. Treatments consisted of the combinations of doses (25% and 50% of the recommended complete dose for the lettuce) and application ofcomplete dose (100%) of phosphorus (P) and potassium (K) applied via fertirrigation, and a control (conventional fertilization system). The results showed that P and K availability in soil and nutrient concentration in plants were affected by treatments. Low phosphorus and potassium doses, applied via fertirrigation, were not efficient for the appropriate development of lettuce plants. The results showed that agronomic characteristics and commercial lettuce were affected by doses and application systems, especially the treatment with application of P and K full dose fertirrigation.
publishDate 2011
dc.date.none.fl_str_mv 2011-09-12
2014-05-27T11:26:00Z
2014-05-27T11:26:00Z
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://irriga.fca.unesp.br/index.php/irriga/article/view/197
Irriga, v. 16, n. 2, p. 125-133, 2011.
1413-7895
1808-3765
http://hdl.handle.net/11449/72670
2-s2.0-80052476877
2-s2.0-80052476877.pdf
3541050909331364
url http://irriga.fca.unesp.br/index.php/irriga/article/view/197
http://hdl.handle.net/11449/72670
identifier_str_mv Irriga, v. 16, n. 2, p. 125-133, 2011.
1413-7895
1808-3765
2-s2.0-80052476877
2-s2.0-80052476877.pdf
3541050909331364
dc.language.iso.fl_str_mv eng
por
language eng
por
dc.relation.none.fl_str_mv Irriga
0,283
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 125-133
application/pdf
dc.source.none.fl_str_mv Scopus
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_ 1808129072929177600

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