Manejo da adubação potássica e da irrigação localizada na cultura do pinhão manso no cerrado
Autor(a) principal: | |
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Data de Publicação: | 2014 |
Tipo de documento: | Dissertação |
Idioma: | por |
Título da fonte: | Repositório Institucional da UFG |
Texto Completo: | http://repositorio.bc.ufg.br/tede/handle/tede/5051 |
Resumo: | The cultivation of jatropha is attracting great interest for the production of biodiesel. Despite irrigation and fertilization contribute to the better development of the culture, few research has been done about this. So the objective of this study was to evaluate the effect of irrigation levels and dose of potassium fertilization on the growth of aerial part and seed productivity of jatropha, and levels of irrigation on the distribution of roots of culture. The experiment was conducted in the experimental area of the School of Agronomy from Federal University of Goiás, during the period of two years. Was evaluation twelve of epochs respectively in the first and second agricultural year, in intervals of thirty days, coinciding with the dates of the characteristics evaluated. In evaluating the growth of the aerial part of the culture, the treatments consisted of four levels of irrigation, being: N0 = rainfed (control), N40 = 40% of Class A pan evaporation (ECA), N80 = 80% ECA, and N120 = 120% ECA, four rates of potassium fertilization: K40 = 40 kg ha-1 K2O, K80 = 80 kg ha-1 K2O; K120 = 120 kg ha-1 K2O, and K160 = 160 kg ha-1 K2O, based on the first year of fertilization. For analysis of seed productivity of jatropha, used the same irrigation treatments and potassium fertilizer used in the analysis of growth the aerial part. Already the system root was evaluating by monolith methodology in the treatments with 80 kg ha-1 of K2O to four levels of irrigation, sampled in three depth: 0- 25, 25-50 e 50-100 cm in five position in relation the stem of culture. The design was a randomized block with four replications. The irrigation system used was microsprinkler with frequency the irrigation to three times of week, by Monday, Wednesday and Fryday. Was evaluated the following parameters of crop growth culture: plant height, crown projection area, stem diameter, number of branches in the main branch and root distribution. Potassium fertilizer and irrigation levels promoted significant increase in the parameters of vegetative growth of plants jatropha grown in the Cerrado. The level medium the irrigation of 115% to ECA and 125 kg ha-1 to K2O, was showed the best result, but the levels of irrigation not influenced the root density the jatrophas plant cultivate in Cerrado the plant roots tended to be distributed in the topsoil and near the emitter. The effective root depth of jatropha is 0.50 m. The applied rates of potassium fertilization did not affect the seed yield of jatropha, while the irrigation level of 67% ECA maximized productivity, reaching 658 kg ha-1. |
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Evangelista, Adão Wagner Pêgohttp://lattes.cnpq.br/5171893735359718Alves Junior, Joséhttp://lattes.cnpq.br/3418524049655817Souza, Jorge Luiz Moretti dehttp://lattes.cnpq.br/4891962684972160Evangelista, Adão Wagner PêgoMelo, Paulo César deAlves Júnior, JoséVellame, Lucas Melohttp://lattes.cnpq.br/6921016603541808Costa, Fernando Rezende da2015-12-11T09:39:30Z2014-04-01COSTA, F. R. Manejo da adubação potássica e da irrigação localizada na cultura do pinhão manso no cerrado. 2014. 61 f. Dissertação (Mestrado em Agronomia) - Universidade Federal de Goiás, Goiânia, 2014.http://repositorio.bc.ufg.br/tede/handle/tede/5051ark:/38995/00130000042dvThe cultivation of jatropha is attracting great interest for the production of biodiesel. Despite irrigation and fertilization contribute to the better development of the culture, few research has been done about this. So the objective of this study was to evaluate the effect of irrigation levels and dose of potassium fertilization on the growth of aerial part and seed productivity of jatropha, and levels of irrigation on the distribution of roots of culture. The experiment was conducted in the experimental area of the School of Agronomy from Federal University of Goiás, during the period of two years. Was evaluation twelve of epochs respectively in the first and second agricultural year, in intervals of thirty days, coinciding with the dates of the characteristics evaluated. In evaluating the growth of the aerial part of the culture, the treatments consisted of four levels of irrigation, being: N0 = rainfed (control), N40 = 40% of Class A pan evaporation (ECA), N80 = 80% ECA, and N120 = 120% ECA, four rates of potassium fertilization: K40 = 40 kg ha-1 K2O, K80 = 80 kg ha-1 K2O; K120 = 120 kg ha-1 K2O, and K160 = 160 kg ha-1 K2O, based on the first year of fertilization. For analysis of seed productivity of jatropha, used the same irrigation treatments and potassium fertilizer used in the analysis of growth the aerial part. Already the system root was evaluating by monolith methodology in the treatments with 80 kg ha-1 of K2O to four levels of irrigation, sampled in three depth: 0- 25, 25-50 e 50-100 cm in five position in relation the stem of culture. The design was a randomized block with four replications. The irrigation system used was microsprinkler with frequency the irrigation to three times of week, by Monday, Wednesday and Fryday. Was evaluated the following parameters of crop growth culture: plant height, crown projection area, stem diameter, number of branches in the main branch and root distribution. Potassium fertilizer and irrigation levels promoted significant increase in the parameters of vegetative growth of plants jatropha grown in the Cerrado. The level medium the irrigation of 115% to ECA and 125 kg ha-1 to K2O, was showed the best result, but the levels of irrigation not influenced the root density the jatrophas plant cultivate in Cerrado the plant roots tended to be distributed in the topsoil and near the emitter. The effective root depth of jatropha is 0.50 m. The applied rates of potassium fertilization did not affect the seed yield of jatropha, while the irrigation level of 67% ECA maximized productivity, reaching 658 kg ha-1.O cultivo do pinhão manso vem despertando grande interesse para a produção de biodiesel. Apesar da irrigação e da adubação contribuírem para o melhor desenvolvimento da cultura, poucas pesquisas têm sido realizadas neste contexto. Assim, o objetivo desse trabalho foi avaliar o efeito da aplicação de níveis de irrigação e doses de adubação potássica sobre o crescimento da parte aérea e produtividade de sementes de pinhão manso, e de níveis de irrigação sobre a distribuição de raízes da cultura. O experimento foi realizado na área experimental da Escola de Agronomia da Universidade Federal de Goiás, durante o período de dois anos. Foram avaliadas doze épocas, respectivamente, para o primeiro e segundo ano agrícola, em intervalos de trinta dias, coincidindo como as datas de avaliações das características. Na avaliação do crescimento da parte aérea da cultura, os tratamentos constaram de quatro níveis de irrigação, sendo: N0 = sequeiro (testemunha); N40 = 40% da evaporação do tanque Classe A (ECA), N80 = 80% da ECA; e N120 = 120% da ECA; quatro doses de adubação potássica: K40 = 40 kg ha-1 de K2O; K80 = 80 kg ha-1 de K2O; K120 = 120 kg ha-1 de K2O; e K160 = 160 kg ha-1 de K2O, tomando como base a primeira adubação do ano. Para análise de produtividade de sementes de pinhão manso, utilizou os mesmos tratamentos de irrigação e adubação potássica utilizados na análise de crescimento da parte aérea. Já o sistema radicular foi analisado pelo método do monólito nos tratamentos com 80 kg ha-1 de K2O para os quatro níveis de irrigação, amostrados em três profundidades: 0-25, 25-50 e 50-100 cm em cinco posições em relação ao caule da cultura. O delineamento foi em blocos casualizados com quatro repetições. O sistema de irrigação utilizado foi por microaspersão com frequência de irrigação de três vezes por semana, às segunda, quarta e sexta-feira. Foram avaliados os seguintes parâmetros de crescimento da cultura: altura de planta, área de projeção de copa, diâmetro de caule, número de ramificações no ramo principal e distribuição radicular. A adubação potássica e os níveis de irrigação promoveram acréscimo significativo nos parâmetros de crescimento vegetativo de plantas de pinhão manso cultivado no Cerrado. O nível médio de irrigação de 115% da ECA e a dose de 125,00 kg ha-1 de K2O, foram as que apresentaram o melhor resultado, mas os níveis de irrigação não influenciaram a densidade de raízes de plantas de pinhão manso cultivadas no Cerrado e as raízes das plantas tenderam a distribuir na camada superficial do solo e próximo ao microaspersor. A profundidade efetiva do sistema radicular do pinhão manso é de 0,50 m. As doses de adubação potássica aplicadas não influenciaram a produtividade de sementes de pinhão manso, enquanto o nível de irrigação de 67% da ECA maximizou a produtividade, alcançando 658 kg ha-1.Submitted by Cláudia Bueno (claudiamoura18@gmail.com) on 2015-12-10T15:46:42Z No. of bitstreams: 2 Dissertação - Fernando Rezende da Costa - 2014.pdf: 1496972 bytes, checksum: c527abe7791b3022c531512b31997055 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5)Approved for entry into archive by Luciana Ferreira (lucgeral@gmail.com) on 2015-12-11T09:39:30Z (GMT) No. of bitstreams: 2 Dissertação - Fernando Rezende da Costa - 2014.pdf: 1496972 bytes, checksum: c527abe7791b3022c531512b31997055 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5)Made available in DSpace on 2015-12-11T09:39:30Z (GMT). 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dc.title.por.fl_str_mv |
Manejo da adubação potássica e da irrigação localizada na cultura do pinhão manso no cerrado |
dc.title.alternative.eng.fl_str_mv |
Management of potassium fertilization and irrigation located in the culture of jatropha in the cerrado |
title |
Manejo da adubação potássica e da irrigação localizada na cultura do pinhão manso no cerrado |
spellingShingle |
Manejo da adubação potássica e da irrigação localizada na cultura do pinhão manso no cerrado Costa, Fernando Rezende da Manejo de irrigação Nutrição de plantas Déficit hídrico Biocombustível Irrigation management Plant nutrition Water deficit Biofuel ENGENHARIA DE AGUA E SOLO::IRRIGACAO E DRENAGEM |
title_short |
Manejo da adubação potássica e da irrigação localizada na cultura do pinhão manso no cerrado |
title_full |
Manejo da adubação potássica e da irrigação localizada na cultura do pinhão manso no cerrado |
title_fullStr |
Manejo da adubação potássica e da irrigação localizada na cultura do pinhão manso no cerrado |
title_full_unstemmed |
Manejo da adubação potássica e da irrigação localizada na cultura do pinhão manso no cerrado |
title_sort |
Manejo da adubação potássica e da irrigação localizada na cultura do pinhão manso no cerrado |
author |
Costa, Fernando Rezende da |
author_facet |
Costa, Fernando Rezende da |
author_role |
author |
dc.contributor.advisor1.fl_str_mv |
Evangelista, Adão Wagner Pêgo |
dc.contributor.advisor1Lattes.fl_str_mv |
http://lattes.cnpq.br/5171893735359718 |
dc.contributor.advisor-co1.fl_str_mv |
Alves Junior, José |
dc.contributor.advisor-co1Lattes.fl_str_mv |
http://lattes.cnpq.br/3418524049655817 |
dc.contributor.advisor-co2.fl_str_mv |
Souza, Jorge Luiz Moretti de |
dc.contributor.advisor-co2Lattes.fl_str_mv |
http://lattes.cnpq.br/4891962684972160 |
dc.contributor.referee1.fl_str_mv |
Evangelista, Adão Wagner Pêgo |
dc.contributor.referee2.fl_str_mv |
Melo, Paulo César de |
dc.contributor.referee3.fl_str_mv |
Alves Júnior, José |
dc.contributor.referee4.fl_str_mv |
Vellame, Lucas Melo |
dc.contributor.authorLattes.fl_str_mv |
http://lattes.cnpq.br/6921016603541808 |
dc.contributor.author.fl_str_mv |
Costa, Fernando Rezende da |
contributor_str_mv |
Evangelista, Adão Wagner Pêgo Alves Junior, José Souza, Jorge Luiz Moretti de Evangelista, Adão Wagner Pêgo Melo, Paulo César de Alves Júnior, José Vellame, Lucas Melo |
dc.subject.por.fl_str_mv |
Manejo de irrigação Nutrição de plantas Déficit hídrico Biocombustível |
topic |
Manejo de irrigação Nutrição de plantas Déficit hídrico Biocombustível Irrigation management Plant nutrition Water deficit Biofuel ENGENHARIA DE AGUA E SOLO::IRRIGACAO E DRENAGEM |
dc.subject.eng.fl_str_mv |
Irrigation management Plant nutrition Water deficit Biofuel |
dc.subject.cnpq.fl_str_mv |
ENGENHARIA DE AGUA E SOLO::IRRIGACAO E DRENAGEM |
description |
The cultivation of jatropha is attracting great interest for the production of biodiesel. Despite irrigation and fertilization contribute to the better development of the culture, few research has been done about this. So the objective of this study was to evaluate the effect of irrigation levels and dose of potassium fertilization on the growth of aerial part and seed productivity of jatropha, and levels of irrigation on the distribution of roots of culture. The experiment was conducted in the experimental area of the School of Agronomy from Federal University of Goiás, during the period of two years. Was evaluation twelve of epochs respectively in the first and second agricultural year, in intervals of thirty days, coinciding with the dates of the characteristics evaluated. In evaluating the growth of the aerial part of the culture, the treatments consisted of four levels of irrigation, being: N0 = rainfed (control), N40 = 40% of Class A pan evaporation (ECA), N80 = 80% ECA, and N120 = 120% ECA, four rates of potassium fertilization: K40 = 40 kg ha-1 K2O, K80 = 80 kg ha-1 K2O; K120 = 120 kg ha-1 K2O, and K160 = 160 kg ha-1 K2O, based on the first year of fertilization. For analysis of seed productivity of jatropha, used the same irrigation treatments and potassium fertilizer used in the analysis of growth the aerial part. Already the system root was evaluating by monolith methodology in the treatments with 80 kg ha-1 of K2O to four levels of irrigation, sampled in three depth: 0- 25, 25-50 e 50-100 cm in five position in relation the stem of culture. The design was a randomized block with four replications. The irrigation system used was microsprinkler with frequency the irrigation to three times of week, by Monday, Wednesday and Fryday. Was evaluated the following parameters of crop growth culture: plant height, crown projection area, stem diameter, number of branches in the main branch and root distribution. Potassium fertilizer and irrigation levels promoted significant increase in the parameters of vegetative growth of plants jatropha grown in the Cerrado. The level medium the irrigation of 115% to ECA and 125 kg ha-1 to K2O, was showed the best result, but the levels of irrigation not influenced the root density the jatrophas plant cultivate in Cerrado the plant roots tended to be distributed in the topsoil and near the emitter. The effective root depth of jatropha is 0.50 m. The applied rates of potassium fertilization did not affect the seed yield of jatropha, while the irrigation level of 67% ECA maximized productivity, reaching 658 kg ha-1. |
publishDate |
2014 |
dc.date.issued.fl_str_mv |
2014-04-01 |
dc.date.accessioned.fl_str_mv |
2015-12-11T09:39:30Z |
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.citation.fl_str_mv |
COSTA, F. R. Manejo da adubação potássica e da irrigação localizada na cultura do pinhão manso no cerrado. 2014. 61 f. Dissertação (Mestrado em Agronomia) - Universidade Federal de Goiás, Goiânia, 2014. |
dc.identifier.uri.fl_str_mv |
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COSTA, F. R. Manejo da adubação potássica e da irrigação localizada na cultura do pinhão manso no cerrado. 2014. 61 f. Dissertação (Mestrado em Agronomia) - Universidade Federal de Goiás, Goiânia, 2014. ark:/38995/00130000042dv |
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Universidade Federal de Goiás |
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