Fontes e manejo de nitrogênio na cultura da batata em solos arenosos

Detalhes bibliográficos
Autor(a) principal: Souza, Emerson de Freitas Cordova de [UNESP]
Data de Publicação: 2014
Tipo de documento: Tese
Idioma: por
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://hdl.handle.net/11449/123374
http://www.athena.biblioteca.unesp.br/exlibris/bd/cathedra/30-04-2015/000829327.pdf
Resumo: Potato plant (Solanum tuberosum L.) is one of the most grown species in the world. Nitrogen deficiency is one of the factors that limit this crop, because it is directly linked to the tuber yield. Thus, a study seeking the best strategy for the potato nitrogen utilization becomes necessary, mostly when it is grown in sandy soils. The objective of this work was to evaluate the behavior and chemical changes of soil after application of urea, ammonium sulfate and ammonium sulfonitrate, containing the nitrification inhibitor-DMPP, known commercially as Entec® 26; the effect of these sources and the nitrogen application rates on potato cropped in sandy soil, and more specifically, the effect of rates and split application of Entec on potato cropped in sandy soil. This way, a laboratory experiment in a completely randomized design, with four replications under constant temperature and humidity, and six experimental field, with four blocks in a randomized block design were carried out. The laboratory experiment had three fertilized treatments, (addition of Entec, ammonium sulfate, and urea) and one unfertilized as a control. For experiments I, II and III, a factorial design 3 x 3 + 1 was used. The treatments comprised three types of nitrogenous fertilizers applied (Entec, ammonium sulfate, and urea), as well as three rates of N (80, 120, and 160 kg ha-1) and one without nitrogen application as a control. On experiments IV, V, VI, the treatments comprised two rates (120 and 160 kg ha-1) of Entec fertilizer. It was either totally applied at planting or it was split applied (40 kg ha-1 at planting; remainder split applied). There was one unfertilized as a control. Urea increased the pH quickly and strongly, however, later on the pH decreased and promoted the greatest soil acidification. Besides, it was more nitrified than ammonium sulfate and Entec fertilizers. Entec kept the initial NO3- availability stable ...
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spelling Fontes e manejo de nitrogênio na cultura da batata em solos arenososSources and management of nitrogen on potato crop cultvated in sand soilBatata - CultivoPlantas - NutriçãoPlantas - Efeito dos mineraisMinerais na nutrição de plantasBatata - Adubos e fertilizantesNitrogenio na agriculturaNitrogen in agriculturePotato plant (Solanum tuberosum L.) is one of the most grown species in the world. Nitrogen deficiency is one of the factors that limit this crop, because it is directly linked to the tuber yield. Thus, a study seeking the best strategy for the potato nitrogen utilization becomes necessary, mostly when it is grown in sandy soils. The objective of this work was to evaluate the behavior and chemical changes of soil after application of urea, ammonium sulfate and ammonium sulfonitrate, containing the nitrification inhibitor-DMPP, known commercially as Entec® 26; the effect of these sources and the nitrogen application rates on potato cropped in sandy soil, and more specifically, the effect of rates and split application of Entec on potato cropped in sandy soil. This way, a laboratory experiment in a completely randomized design, with four replications under constant temperature and humidity, and six experimental field, with four blocks in a randomized block design were carried out. The laboratory experiment had three fertilized treatments, (addition of Entec, ammonium sulfate, and urea) and one unfertilized as a control. For experiments I, II and III, a factorial design 3 x 3 + 1 was used. The treatments comprised three types of nitrogenous fertilizers applied (Entec, ammonium sulfate, and urea), as well as three rates of N (80, 120, and 160 kg ha-1) and one without nitrogen application as a control. On experiments IV, V, VI, the treatments comprised two rates (120 and 160 kg ha-1) of Entec fertilizer. It was either totally applied at planting or it was split applied (40 kg ha-1 at planting; remainder split applied). There was one unfertilized as a control. Urea increased the pH quickly and strongly, however, later on the pH decreased and promoted the greatest soil acidification. Besides, it was more nitrified than ammonium sulfate and Entec fertilizers. Entec kept the initial NO3- availability stable ...A batateira (Solanum tuberosum L.) é uma das principais espécies vegetais cultivadas no mundo. No cultivo desta espécie, a deficiência de nitrogênio (N) é uma das que mais limitam o crescimento da planta, estando diretamente relacionada produção de tubérculos. Dessa forma, tornam-se necessários estudos que buscam a melhor estratégia para o melhor aproveitamento do N aplicado na cultura da batata, especialmente quando cultivada em solos arenosos. O objetivo deste trabalho foi avaliar o comportamento e as mudanças químicas do solo após a aplicação dos fertilizantes ureia, sulfato de amônio e sulfonitrato de amônio contendo o inibidor de nitrificação DMPP, comercialmente denominado Entec® 26; o efeito destas fontes e de doses de adubação nitrogenada na cultura da batata em solo arenoso e, especificamente o efeito de doses e do parcelamento do fertilizante Entec na cultura da batata cultivada em solo arenoso. Para isto foram realizados sete experimentos, um em laboratório conduzido sob condições controladas e seis outros em condições de campo. O delineamento experimental do experimento em laboratório foi inteiramente casualizado, com quatro repetições. Os tratamentos foram constituídos pela aplicação de três diferentes fertilizantes nitrogenados (Entec, sulfato de amônio e ureia) e um tratamento testemunha sem a aplicação de fertilizante. Nos experimentos I, II e III, o delineamento experimental utilizado foi o de blocos casualizados, no esquema fatorial 3 x 3 + 1, com quatro repetições. Os tratamentos foram constituídos por três fontes de N (Entec, sulfato de amônio e ureia), por três doses de N (80, 120 e 160 kg ha-1) e uma testemunha (sem aplicação de N). Nos experimentos IV, V e VI, o delineamento experimental utilizado foi o de blocos casualizados com quatro repetições. Os tratamentos foram compostos por duas doses (120 e 160 kg ha-1) do fertilizante ...Universidade Estadual Paulista (Unesp)Soratto, Rogério Peres [UNESP]Universidade Estadual Paulista (Unesp)Souza, Emerson de Freitas Cordova de [UNESP]2015-05-14T16:53:28Z2015-05-14T16:53:28Z2014-12-12info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/doctoralThesisxii, 120 f. : il. , grafs., tabsapplication/pdfSOUZA, Emerson de Freitas Cordova de. Fontes e manejo de nitrogênio na cultura da batata em solos arenosos. 2014. xii, 120 f. Tese (doutorado) - Universidade Estadual Paulista Júlio de Mesquita Filho, Faculdade de Ciências Agronômicas de Botucatu, 2014.http://hdl.handle.net/11449/123374000829327http://www.athena.biblioteca.unesp.br/exlibris/bd/cathedra/30-04-2015/000829327.pdf33004064039P3Alephreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPporinfo:eu-repo/semantics/openAccess2024-05-02T19:50:06Zoai:repositorio.unesp.br:11449/123374Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T21:41:26.191656Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Fontes e manejo de nitrogênio na cultura da batata em solos arenosos
Sources and management of nitrogen on potato crop cultvated in sand soil
title Fontes e manejo de nitrogênio na cultura da batata em solos arenosos
spellingShingle Fontes e manejo de nitrogênio na cultura da batata em solos arenosos
Souza, Emerson de Freitas Cordova de [UNESP]
Batata - Cultivo
Plantas - Nutrição
Plantas - Efeito dos minerais
Minerais na nutrição de plantas
Batata - Adubos e fertilizantes
Nitrogenio na agricultura
Nitrogen in agriculture
title_short Fontes e manejo de nitrogênio na cultura da batata em solos arenosos
title_full Fontes e manejo de nitrogênio na cultura da batata em solos arenosos
title_fullStr Fontes e manejo de nitrogênio na cultura da batata em solos arenosos
title_full_unstemmed Fontes e manejo de nitrogênio na cultura da batata em solos arenosos
title_sort Fontes e manejo de nitrogênio na cultura da batata em solos arenosos
author Souza, Emerson de Freitas Cordova de [UNESP]
author_facet Souza, Emerson de Freitas Cordova de [UNESP]
author_role author
dc.contributor.none.fl_str_mv Soratto, Rogério Peres [UNESP]
Universidade Estadual Paulista (Unesp)
dc.contributor.author.fl_str_mv Souza, Emerson de Freitas Cordova de [UNESP]
dc.subject.por.fl_str_mv Batata - Cultivo
Plantas - Nutrição
Plantas - Efeito dos minerais
Minerais na nutrição de plantas
Batata - Adubos e fertilizantes
Nitrogenio na agricultura
Nitrogen in agriculture
topic Batata - Cultivo
Plantas - Nutrição
Plantas - Efeito dos minerais
Minerais na nutrição de plantas
Batata - Adubos e fertilizantes
Nitrogenio na agricultura
Nitrogen in agriculture
description Potato plant (Solanum tuberosum L.) is one of the most grown species in the world. Nitrogen deficiency is one of the factors that limit this crop, because it is directly linked to the tuber yield. Thus, a study seeking the best strategy for the potato nitrogen utilization becomes necessary, mostly when it is grown in sandy soils. The objective of this work was to evaluate the behavior and chemical changes of soil after application of urea, ammonium sulfate and ammonium sulfonitrate, containing the nitrification inhibitor-DMPP, known commercially as Entec® 26; the effect of these sources and the nitrogen application rates on potato cropped in sandy soil, and more specifically, the effect of rates and split application of Entec on potato cropped in sandy soil. This way, a laboratory experiment in a completely randomized design, with four replications under constant temperature and humidity, and six experimental field, with four blocks in a randomized block design were carried out. The laboratory experiment had three fertilized treatments, (addition of Entec, ammonium sulfate, and urea) and one unfertilized as a control. For experiments I, II and III, a factorial design 3 x 3 + 1 was used. The treatments comprised three types of nitrogenous fertilizers applied (Entec, ammonium sulfate, and urea), as well as three rates of N (80, 120, and 160 kg ha-1) and one without nitrogen application as a control. On experiments IV, V, VI, the treatments comprised two rates (120 and 160 kg ha-1) of Entec fertilizer. It was either totally applied at planting or it was split applied (40 kg ha-1 at planting; remainder split applied). There was one unfertilized as a control. Urea increased the pH quickly and strongly, however, later on the pH decreased and promoted the greatest soil acidification. Besides, it was more nitrified than ammonium sulfate and Entec fertilizers. Entec kept the initial NO3- availability stable ...
publishDate 2014
dc.date.none.fl_str_mv 2014-12-12
2015-05-14T16:53:28Z
2015-05-14T16:53:28Z
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 SOUZA, Emerson de Freitas Cordova de. Fontes e manejo de nitrogênio na cultura da batata em solos arenosos. 2014. xii, 120 f. Tese (doutorado) - Universidade Estadual Paulista Júlio de Mesquita Filho, Faculdade de Ciências Agronômicas de Botucatu, 2014.
http://hdl.handle.net/11449/123374
000829327
http://www.athena.biblioteca.unesp.br/exlibris/bd/cathedra/30-04-2015/000829327.pdf
33004064039P3
identifier_str_mv SOUZA, Emerson de Freitas Cordova de. Fontes e manejo de nitrogênio na cultura da batata em solos arenosos. 2014. xii, 120 f. Tese (doutorado) - Universidade Estadual Paulista Júlio de Mesquita Filho, Faculdade de Ciências Agronômicas de Botucatu, 2014.
000829327
33004064039P3
url http://hdl.handle.net/11449/123374
http://www.athena.biblioteca.unesp.br/exlibris/bd/cathedra/30-04-2015/000829327.pdf
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language por
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
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dc.format.none.fl_str_mv xii, 120 f. : il. , grafs., tabs
application/pdf
dc.publisher.none.fl_str_mv Universidade Estadual Paulista (Unesp)
publisher.none.fl_str_mv Universidade Estadual Paulista (Unesp)
dc.source.none.fl_str_mv Aleph
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
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instname_str Universidade Estadual Paulista (UNESP)
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institution UNESP
reponame_str Repositório Institucional da UNESP
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