Coberturas vegetais e doses de nitrogênio, associadas à inoculação com Azospirillum brasilense, no cultivo do milho na região de Cerrado

Detalhes bibliográficos
Autor(a) principal: Portugal, José Roberto [UNESP]
Data de Publicação: 2015
Tipo de documento: Dissertação
Idioma: por
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://hdl.handle.net/11449/126437
http://www.athena.biblioteca.unesp.br/exlibris/bd/cathedra/12-08-2015/000843763.pdf
Resumo: In Brazil and in the world, maize crop is one of the most important because it is the basis of animal feed and also used in human feed. Sustainable techniques of management in maize crop are needed, aiming at increasing yield, reducing costs and environmental impacts. The objective of this study was to evaluate different cover crops (millet, sunn hemp, pigeonpea, millet + sunn hemp, millet + pigeonpea and fallow), N rates (0, 40, 80 and 120 kg ha -1 ) with and without inoculation of seeds with Azospirillum brasilense in maize crop, cultivated in no- tillage system on growth and yield in the Cerrado region. The experimental design was complete randomized blocks in a factorial scheme 6x4x2, constituting 48 treatments, with 4 replications. The study was conducted at the Experimental Farm belonging to the Faculty of Engineering - UNESP (Ilha Solteira), located in Selviria - MS. The soil of the place is a Typical Dystrophic Red Latosol clayey texture. The average annual rainfall is 1.330 mm, the average annual temperature is 25°C and the relative humidity between 70 and 80%. During the experiment, the following evaluations were performed: dry matter, content and accumulated values of N, P and K in cover crops; in maize: initial and final population of plants, production of dry matter of the shoots, leaf nitrogen content, leaf chlorophyll index, content and accumulated values of N, P and K in the whole plant, plant height and of ear insertion, stem diameter, ear length, ear diameter, thousand grain weight and grain yield. The cover crops except the pigeonpea in 2012/13 and fallow in 2013/14 produced adequate amount of residue to keep the no-tillage system in the Cerrado region. The consortium of millet + sunn hemp provided the greater accumulated amount of N and K for both years of cultivation. The great yield of maize grains under pigeonpea residue was due to increase in ear diameter and thousand-grain weight. Thus, the great maize yield ...
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spelling Coberturas vegetais e doses de nitrogênio, associadas à inoculação com Azospirillum brasilense, no cultivo do milho na região de CerradoCultivos de coberturaMilhoBactériasCerradosCover cropsIn Brazil and in the world, maize crop is one of the most important because it is the basis of animal feed and also used in human feed. Sustainable techniques of management in maize crop are needed, aiming at increasing yield, reducing costs and environmental impacts. The objective of this study was to evaluate different cover crops (millet, sunn hemp, pigeonpea, millet + sunn hemp, millet + pigeonpea and fallow), N rates (0, 40, 80 and 120 kg ha -1 ) with and without inoculation of seeds with Azospirillum brasilense in maize crop, cultivated in no- tillage system on growth and yield in the Cerrado region. The experimental design was complete randomized blocks in a factorial scheme 6x4x2, constituting 48 treatments, with 4 replications. The study was conducted at the Experimental Farm belonging to the Faculty of Engineering - UNESP (Ilha Solteira), located in Selviria - MS. The soil of the place is a Typical Dystrophic Red Latosol clayey texture. The average annual rainfall is 1.330 mm, the average annual temperature is 25°C and the relative humidity between 70 and 80%. During the experiment, the following evaluations were performed: dry matter, content and accumulated values of N, P and K in cover crops; in maize: initial and final population of plants, production of dry matter of the shoots, leaf nitrogen content, leaf chlorophyll index, content and accumulated values of N, P and K in the whole plant, plant height and of ear insertion, stem diameter, ear length, ear diameter, thousand grain weight and grain yield. The cover crops except the pigeonpea in 2012/13 and fallow in 2013/14 produced adequate amount of residue to keep the no-tillage system in the Cerrado region. The consortium of millet + sunn hemp provided the greater accumulated amount of N and K for both years of cultivation. The great yield of maize grains under pigeonpea residue was due to increase in ear diameter and thousand-grain weight. Thus, the great maize yield ...No Brasil e no mundo, a cultura do milho é uma das mais importantes, por ser a base da alimentação animal e utilizado também na alimentação humana. Técnicas sustentáveis de manejo na cultura do milho são necessárias, visando aumento de produtividade, minimizando custos e impactos ambientais. O objetivo deste trabalho foi avaliar diferentes coberturas vegetais (milheto, crotalária, guandu, milheto + crotalária, milheto + guandu e pousio), doses de N (0, 40, 80 e 120 kg ha -1 ) com e sem a inoculação de sementes com Azospirillum brasilense na cultura do milho, cultivado em sistema plantio direto no crescimento e produtividade na região do Cerrado. Foi utilizado delineamento experimental em blocos casualizados em esquema fatorial 6x4x2, constituindo 48 tratamentos, com 4 repetições. O estudo foi realizado na Fazenda Experimental pertencente à Faculdade de Engenharia - UNESP - Campus de Ilha Solteira, localizada no município de Selvíria - MS. O solo do local é do tipo LATOSSOLO VERMELHO Distrófico típico argiloso. A precipitação média anual é de 1.330 mm, a temperatura média anual é de 25 oC e a umidade relativa do ar entre 70 e 80%. Durante a condução do experimento, foram realizadas as seguintes avaliações: massa seca, teores e quantidades acumuladas de N, P e K nas plantas de cobertura; no milho: população inicial e final de plantas, produção de massa seca da parte aérea das plantas, teor de N foliar, índice de clorofila foliar, teores e valores acumulados de N, P e K na planta, altura de plantas e de inserção de espiga, diâmetro de colmo, comprimento de espiga, diâmetro de espiga, massa de mil grãos e produtividade de grãos. As coberturas vegetais, exceto o guandu no primeiro ano e pousio no segundo, produziram quantidade adequada de resíduo para manter o sistema plantio direto na região de Cerrado de baixa altitude. O consórcio milheto + crotalária possibilita quantidades acumuladas de N e K..Universidade Estadual Paulista (Unesp)Arf, Orivaldo [UNESP]Universidade Estadual Paulista (Unesp)Portugal, José Roberto [UNESP]2015-08-20T17:09:46Z2015-08-20T17:09:46Z2015-02-24info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesis106 f. : il.application/pdfPORTUGAL, José Roberto. Coberturas vegetais e doses de nitrogênio, associadas à inoculação com Azospirillum brasilense, no cultivo do milho na região de Cerrado. 2015. 106 f. Dissertação (mestrado) - Universidade Estadual Paulista Júlio de Mesquita Filho, Faculdade de Engenharia, 2015.http://hdl.handle.net/11449/126437000843763http://www.athena.biblioteca.unesp.br/exlibris/bd/cathedra/12-08-2015/000843763.pdf33004099079P123599954079038630000-0002-8468-0773Alephreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPporinfo:eu-repo/semantics/openAccess2024-07-10T19:48:45Zoai:repositorio.unesp.br:11449/126437Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T17:19:13.098032Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Coberturas vegetais e doses de nitrogênio, associadas à inoculação com Azospirillum brasilense, no cultivo do milho na região de Cerrado
title Coberturas vegetais e doses de nitrogênio, associadas à inoculação com Azospirillum brasilense, no cultivo do milho na região de Cerrado
spellingShingle Coberturas vegetais e doses de nitrogênio, associadas à inoculação com Azospirillum brasilense, no cultivo do milho na região de Cerrado
Portugal, José Roberto [UNESP]
Cultivos de cobertura
Milho
Bactérias
Cerrados
Cover crops
title_short Coberturas vegetais e doses de nitrogênio, associadas à inoculação com Azospirillum brasilense, no cultivo do milho na região de Cerrado
title_full Coberturas vegetais e doses de nitrogênio, associadas à inoculação com Azospirillum brasilense, no cultivo do milho na região de Cerrado
title_fullStr Coberturas vegetais e doses de nitrogênio, associadas à inoculação com Azospirillum brasilense, no cultivo do milho na região de Cerrado
title_full_unstemmed Coberturas vegetais e doses de nitrogênio, associadas à inoculação com Azospirillum brasilense, no cultivo do milho na região de Cerrado
title_sort Coberturas vegetais e doses de nitrogênio, associadas à inoculação com Azospirillum brasilense, no cultivo do milho na região de Cerrado
author Portugal, José Roberto [UNESP]
author_facet Portugal, José Roberto [UNESP]
author_role author
dc.contributor.none.fl_str_mv Arf, Orivaldo [UNESP]
Universidade Estadual Paulista (Unesp)
dc.contributor.author.fl_str_mv Portugal, José Roberto [UNESP]
dc.subject.por.fl_str_mv Cultivos de cobertura
Milho
Bactérias
Cerrados
Cover crops
topic Cultivos de cobertura
Milho
Bactérias
Cerrados
Cover crops
description In Brazil and in the world, maize crop is one of the most important because it is the basis of animal feed and also used in human feed. Sustainable techniques of management in maize crop are needed, aiming at increasing yield, reducing costs and environmental impacts. The objective of this study was to evaluate different cover crops (millet, sunn hemp, pigeonpea, millet + sunn hemp, millet + pigeonpea and fallow), N rates (0, 40, 80 and 120 kg ha -1 ) with and without inoculation of seeds with Azospirillum brasilense in maize crop, cultivated in no- tillage system on growth and yield in the Cerrado region. The experimental design was complete randomized blocks in a factorial scheme 6x4x2, constituting 48 treatments, with 4 replications. The study was conducted at the Experimental Farm belonging to the Faculty of Engineering - UNESP (Ilha Solteira), located in Selviria - MS. The soil of the place is a Typical Dystrophic Red Latosol clayey texture. The average annual rainfall is 1.330 mm, the average annual temperature is 25°C and the relative humidity between 70 and 80%. During the experiment, the following evaluations were performed: dry matter, content and accumulated values of N, P and K in cover crops; in maize: initial and final population of plants, production of dry matter of the shoots, leaf nitrogen content, leaf chlorophyll index, content and accumulated values of N, P and K in the whole plant, plant height and of ear insertion, stem diameter, ear length, ear diameter, thousand grain weight and grain yield. The cover crops except the pigeonpea in 2012/13 and fallow in 2013/14 produced adequate amount of residue to keep the no-tillage system in the Cerrado region. The consortium of millet + sunn hemp provided the greater accumulated amount of N and K for both years of cultivation. The great yield of maize grains under pigeonpea residue was due to increase in ear diameter and thousand-grain weight. Thus, the great maize yield ...
publishDate 2015
dc.date.none.fl_str_mv 2015-08-20T17:09:46Z
2015-08-20T17:09:46Z
2015-02-24
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 PORTUGAL, José Roberto. Coberturas vegetais e doses de nitrogênio, associadas à inoculação com Azospirillum brasilense, no cultivo do milho na região de Cerrado. 2015. 106 f. Dissertação (mestrado) - Universidade Estadual Paulista Júlio de Mesquita Filho, Faculdade de Engenharia, 2015.
http://hdl.handle.net/11449/126437
000843763
http://www.athena.biblioteca.unesp.br/exlibris/bd/cathedra/12-08-2015/000843763.pdf
33004099079P1
2359995407903863
0000-0002-8468-0773
identifier_str_mv PORTUGAL, José Roberto. Coberturas vegetais e doses de nitrogênio, associadas à inoculação com Azospirillum brasilense, no cultivo do milho na região de Cerrado. 2015. 106 f. Dissertação (mestrado) - Universidade Estadual Paulista Júlio de Mesquita Filho, Faculdade de Engenharia, 2015.
000843763
33004099079P1
2359995407903863
0000-0002-8468-0773
url http://hdl.handle.net/11449/126437
http://www.athena.biblioteca.unesp.br/exlibris/bd/cathedra/12-08-2015/000843763.pdf
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 106 f. : il.
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)
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)
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