Growth and nutrition of Urochloa brizantha cv. Marandu inoculated with plant growth promoting bacteria and under different doses of nitrogen
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Research, Society and Development |
Texto Completo: | https://rsdjournal.org/index.php/rsd/article/view/8925 |
Resumo: | The demand for the production of adequate amounts of plant biomass is a major challenge for Brazilian livestock that faces a serious situation in relation to the degradation of most native or cultivated pastures, especially in soils deficient in biogenic nutrients such as nitrogen. The objective of the present study was to evaluate the growth and nutrition of Urochloa brizantha as a result of inoculation with Azospirillum brasilense associated with nitrogen fertilization. The experiment was conducted in a greenhouse at Universidade Paranaense - UNIPAR, Umuarama - PR. The experimental design was completely randomized, consisting of six treatments (control, inoculated without N, inoculated + 50 and 75 kg ha-1 N, without inoculation + 50 and 75 kg ha-1 N) and five replicates each. 10 days after sowing, excess plants were thinned leaving only five plants per pot. 60 days after sowing, the plants were collected for dry mass analysis, leaf elongation and leaf nutrient content. The inoculation resulted in a gain in the dry mass of the aerial part, length of the aerial part and number of tillers, however there was no gain in dry mass of the root. It was possible to observe a higher concentration of leaf nitrogen and chlorophyll index in treatments with higher concentrations of nitrogen fertilization, inoculated or not. Therefore, it is concluded that inoculation with A. brasilense associated with nitrogen fertilization proved to be an excellent ally in increasing production and in the development of U. brizantha cv. Marandu. |
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Growth and nutrition of Urochloa brizantha cv. Marandu inoculated with plant growth promoting bacteria and under different doses of nitrogenCrecimiento y nutrición de Urochloa brizantha cv. Marandu inoculado con bacterias promotoras del crecimiento vegetal y bajo diferentes dosis de nitrógenoCrescimento e nutrição da Urochloa brizantha cv. Marandu inoculada com bactéria promotora de crescimento vegetal e sob diferentes doses de nitrogênioBactérias diazotróficasB. brizanthaFixação biológica de nitrogênioAmbienteSustentabilidade. Bacterias diazotróficasB. brizanthaFijación biológica de nitrógenoAmbienteSustentabilidad.B. brizanthaBiological nitrogen fixationDiazotrophic bactériaEnvironmentSustainability.The demand for the production of adequate amounts of plant biomass is a major challenge for Brazilian livestock that faces a serious situation in relation to the degradation of most native or cultivated pastures, especially in soils deficient in biogenic nutrients such as nitrogen. The objective of the present study was to evaluate the growth and nutrition of Urochloa brizantha as a result of inoculation with Azospirillum brasilense associated with nitrogen fertilization. The experiment was conducted in a greenhouse at Universidade Paranaense - UNIPAR, Umuarama - PR. The experimental design was completely randomized, consisting of six treatments (control, inoculated without N, inoculated + 50 and 75 kg ha-1 N, without inoculation + 50 and 75 kg ha-1 N) and five replicates each. 10 days after sowing, excess plants were thinned leaving only five plants per pot. 60 days after sowing, the plants were collected for dry mass analysis, leaf elongation and leaf nutrient content. The inoculation resulted in a gain in the dry mass of the aerial part, length of the aerial part and number of tillers, however there was no gain in dry mass of the root. It was possible to observe a higher concentration of leaf nitrogen and chlorophyll index in treatments with higher concentrations of nitrogen fertilization, inoculated or not. Therefore, it is concluded that inoculation with A. brasilense associated with nitrogen fertilization proved to be an excellent ally in increasing production and in the development of U. brizantha cv. Marandu.La demanda de producción de cantidades adecuadas de biomasa vegetal es un gran desafío para la ganadería brasileña que enfrenta una situación grave en relación con la degradación de la mayoría de los pastos nativos o cultivados, especialmente en suelos deficientes en nutrientes biogénicos como el nitrógeno. El objetivo del presente estudio fue evaluar el crecimiento y nutrición de Urochloa brizantha como resultado de la inoculación con Azospirillum brasilense asociado a fertilización nitrogenada. El experimento se realizó en un invernadero de la Universidade Paranaense - UNIPAR, Umuarama - PR. El diseño experimental fue completamente al azar, consistente en seis tratamientos (testigo, inoculado sin N, inoculado + 50 y 75 kg ha-1 N, sin inocular + 50 y 75 kg ha-1 N) y cinco repeticiones cada uno. Diez días después de la siembra, las plantas sobrantes se aclararon dejando solo cinco plantas por maceta. 60 días después de la siembra, las plantas se recolectaron para análisis de masa seca, alargamiento de hojas y contenido de nutrientes de las hojas. La inoculación resultó en una ganancia en la masa seca de la parte aérea, longitud de la parte aérea y número de macollos, sin embargo no hubo ganancia en la masa seca de la raíz. Se pudo observar una mayor concentración de nitrógeno foliar e índice de clorofila en tratamientos con mayores concentraciones de fertilización nitrogenada, inoculados o no. Por tanto, se concluye que la inoculación de A. brasilense combinada con la fertilización nitrogenada resultó ser un excelente aliado en el aumento de la producción y en el desarrollo de U. brizantha cv. Marandu.A demanda por produção de quantidades adequadas de biomassa vegetal é um grande desafio da pecuária brasileira que enfrenta grave situação em relação à degradação da maioria das pastagens nativas ou cultivadas, especialmente em solos deficientes em nutrientes biogênicos como o nitrogênio. O objetivo do presente estudo foi avaliar o crescimento e nutrição de Urochloa brizantha em decorrência da inoculação com Azospirillum brasilense associado com adubação nitrogenada. O experimento foi conduzido em casa de vegetação da Universidade Paranaense – UNIPAR, Umuarama – PR. O delineamento experimental foi inteiramente casualizado, constituído por seis tratamentos (testemunha, inoculado sem N, inoculado + 50 e 75 kg ha-1 N, sem inoculação + 50 e 75 kg ha-1 N) e cinco repetições cada. 10 dias após a semeadura efetuou-se o desbaste das plantas em excesso deixando apenas cinco plantas por vaso. 60 dias após a semeadura, as plantas foram coletadas para análise de massa seca, alongamento foliar e teores de nutrientes foliares. A inoculação resultou em um ganho na massa seca da parte aérea, comprimento de parte aérea e número de perfilhos, porém não houve ganho em massa seca da raiz. Pôde-se observar maior concentração de nitrogênio foliar e índice de clorofila nos tratamentos com maiores concentrações de adubação nitrogenada, inoculado ou não. Portanto, conclui-se que a inoculação com A. brasilense associado à adubação nitrogenada se mostrou um excelente aliado no aumento da produção e no desenvolvimento de U. brizantha cv. Marandu.Research, Society and Development2020-10-16info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://rsdjournal.org/index.php/rsd/article/view/892510.33448/rsd-v9i10.8925Research, Society and Development; Vol. 9 No. 10; e7309108925Research, Society and Development; Vol. 9 Núm. 10; e7309108925Research, Society and Development; v. 9 n. 10; e73091089252525-3409reponame:Research, Society and Developmentinstname:Universidade Federal de Itajubá (UNIFEI)instacron:UNIFEIporhttps://rsdjournal.org/index.php/rsd/article/view/8925/8136Copyright (c) 2020 Mariana Moraes Pinc; Duvilio Antônio Cione Junior; Mario Bazzanella Neto; Elise Polli; Mariana Dalmagro; Guilherme Donadel; Joice Karina Otênio; Odair Albertonhttps://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessPinc, Mariana Moraes Cione Junior, Duvilio Antônio Bazzanella Neto, Mario Polli, EliseDalmagro, Mariana Donadel, GuilhermeOtênio, Joice Karina Alberton, Odair 2020-10-31T12:03:23Zoai:ojs.pkp.sfu.ca:article/8925Revistahttps://rsdjournal.org/index.php/rsd/indexPUBhttps://rsdjournal.org/index.php/rsd/oairsd.articles@gmail.com2525-34092525-3409opendoar:2024-01-17T09:31:17.686931Research, Society and Development - Universidade Federal de Itajubá (UNIFEI)false |
dc.title.none.fl_str_mv |
Growth and nutrition of Urochloa brizantha cv. Marandu inoculated with plant growth promoting bacteria and under different doses of nitrogen Crecimiento y nutrición de Urochloa brizantha cv. Marandu inoculado con bacterias promotoras del crecimiento vegetal y bajo diferentes dosis de nitrógeno Crescimento e nutrição da Urochloa brizantha cv. Marandu inoculada com bactéria promotora de crescimento vegetal e sob diferentes doses de nitrogênio |
title |
Growth and nutrition of Urochloa brizantha cv. Marandu inoculated with plant growth promoting bacteria and under different doses of nitrogen |
spellingShingle |
Growth and nutrition of Urochloa brizantha cv. Marandu inoculated with plant growth promoting bacteria and under different doses of nitrogen Pinc, Mariana Moraes Bactérias diazotróficas B. brizantha Fixação biológica de nitrogênio Ambiente Sustentabilidade. Bacterias diazotróficas B. brizantha Fijación biológica de nitrógeno Ambiente Sustentabilidad. B. brizantha Biological nitrogen fixation Diazotrophic bactéria Environment Sustainability. |
title_short |
Growth and nutrition of Urochloa brizantha cv. Marandu inoculated with plant growth promoting bacteria and under different doses of nitrogen |
title_full |
Growth and nutrition of Urochloa brizantha cv. Marandu inoculated with plant growth promoting bacteria and under different doses of nitrogen |
title_fullStr |
Growth and nutrition of Urochloa brizantha cv. Marandu inoculated with plant growth promoting bacteria and under different doses of nitrogen |
title_full_unstemmed |
Growth and nutrition of Urochloa brizantha cv. Marandu inoculated with plant growth promoting bacteria and under different doses of nitrogen |
title_sort |
Growth and nutrition of Urochloa brizantha cv. Marandu inoculated with plant growth promoting bacteria and under different doses of nitrogen |
author |
Pinc, Mariana Moraes |
author_facet |
Pinc, Mariana Moraes Cione Junior, Duvilio Antônio Bazzanella Neto, Mario Polli, Elise Dalmagro, Mariana Donadel, Guilherme Otênio, Joice Karina Alberton, Odair |
author_role |
author |
author2 |
Cione Junior, Duvilio Antônio Bazzanella Neto, Mario Polli, Elise Dalmagro, Mariana Donadel, Guilherme Otênio, Joice Karina Alberton, Odair |
author2_role |
author author author author author author author |
dc.contributor.author.fl_str_mv |
Pinc, Mariana Moraes Cione Junior, Duvilio Antônio Bazzanella Neto, Mario Polli, Elise Dalmagro, Mariana Donadel, Guilherme Otênio, Joice Karina Alberton, Odair |
dc.subject.por.fl_str_mv |
Bactérias diazotróficas B. brizantha Fixação biológica de nitrogênio Ambiente Sustentabilidade. Bacterias diazotróficas B. brizantha Fijación biológica de nitrógeno Ambiente Sustentabilidad. B. brizantha Biological nitrogen fixation Diazotrophic bactéria Environment Sustainability. |
topic |
Bactérias diazotróficas B. brizantha Fixação biológica de nitrogênio Ambiente Sustentabilidade. Bacterias diazotróficas B. brizantha Fijación biológica de nitrógeno Ambiente Sustentabilidad. B. brizantha Biological nitrogen fixation Diazotrophic bactéria Environment Sustainability. |
description |
The demand for the production of adequate amounts of plant biomass is a major challenge for Brazilian livestock that faces a serious situation in relation to the degradation of most native or cultivated pastures, especially in soils deficient in biogenic nutrients such as nitrogen. The objective of the present study was to evaluate the growth and nutrition of Urochloa brizantha as a result of inoculation with Azospirillum brasilense associated with nitrogen fertilization. The experiment was conducted in a greenhouse at Universidade Paranaense - UNIPAR, Umuarama - PR. The experimental design was completely randomized, consisting of six treatments (control, inoculated without N, inoculated + 50 and 75 kg ha-1 N, without inoculation + 50 and 75 kg ha-1 N) and five replicates each. 10 days after sowing, excess plants were thinned leaving only five plants per pot. 60 days after sowing, the plants were collected for dry mass analysis, leaf elongation and leaf nutrient content. The inoculation resulted in a gain in the dry mass of the aerial part, length of the aerial part and number of tillers, however there was no gain in dry mass of the root. It was possible to observe a higher concentration of leaf nitrogen and chlorophyll index in treatments with higher concentrations of nitrogen fertilization, inoculated or not. Therefore, it is concluded that inoculation with A. brasilense associated with nitrogen fertilization proved to be an excellent ally in increasing production and in the development of U. brizantha cv. Marandu. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-10-16 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://rsdjournal.org/index.php/rsd/article/view/8925 10.33448/rsd-v9i10.8925 |
url |
https://rsdjournal.org/index.php/rsd/article/view/8925 |
identifier_str_mv |
10.33448/rsd-v9i10.8925 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://rsdjournal.org/index.php/rsd/article/view/8925/8136 |
dc.rights.driver.fl_str_mv |
https://creativecommons.org/licenses/by/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by/4.0 |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Research, Society and Development |
publisher.none.fl_str_mv |
Research, Society and Development |
dc.source.none.fl_str_mv |
Research, Society and Development; Vol. 9 No. 10; e7309108925 Research, Society and Development; Vol. 9 Núm. 10; e7309108925 Research, Society and Development; v. 9 n. 10; e7309108925 2525-3409 reponame:Research, Society and Development instname:Universidade Federal de Itajubá (UNIFEI) instacron:UNIFEI |
instname_str |
Universidade Federal de Itajubá (UNIFEI) |
instacron_str |
UNIFEI |
institution |
UNIFEI |
reponame_str |
Research, Society and Development |
collection |
Research, Society and Development |
repository.name.fl_str_mv |
Research, Society and Development - Universidade Federal de Itajubá (UNIFEI) |
repository.mail.fl_str_mv |
rsd.articles@gmail.com |
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1797052816590635008 |