Production and morphological characteristics of marandu grass under inoculation and levels of nitrogen fertilization
Autor(a) principal: | |
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Data de Publicação: | 2023 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Semina. Ciências Agrárias (Online) |
Texto Completo: | https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/48452 |
Resumo: | Forage production and quality are influenced by the supply of nitrogen, especially urea, which is highly subject to losses through volatilization. Alternatively, technology that reduces nitrogen release has emerged, restricting losses by coating the fertilizer with polymers. Furthermore, there is a combination of multifunctional soil microorganisms capable of capturing atmospheric nitrogen and making it available to forage plants as a possibility to reduce external dependence on nitrogen. Thus, this study aimed to evaluate seed inoculation and the use of coated urea in the production of shoot and root dry mass, and the morphological characteristics of Marandu grass (Urochloa brizantha cv. Marandu). The experiment conducted in pots was set up in a completely randomized design with four replications in a 5 x 4 x 4 factorial scheme. Five nitrogen fertilization doses (50, 100, 150, 200, and 250 kg N ha−1) were applied in a single dose, using the synthetic fertilizer urea. The factors consisted of four techniques: fertilization with urea, fertilization with coated urea, Marandu grass seeds treated with commercial inoculant and fertilization with urea, and Marandu grass seeds treated with commercial inoculant and fertilization with coated urea. The observations (forage canopy height, number of tillers per pot, and shoot forage mass) were obtained every 21 days, totaling four sequential evaluation cuts. Root dry mass was obtained by a single measurement in the fourth cut, arranged in a 5 x 4 factorial scheme, with four replications. The dose of 50 kg N ha−1, using conventional urea, characterizes economic and environmental provision to Marandu grass canopy height under adequate soil moisture conditions. The nitrogen dose up to 200 kg ha−1 promotes an increase in the number of tillers, while equal and higher doses ensure maintenance of forage mass production potential for up to 2 cuts. Conventional urea enabled superior root mass production of Marandu grass at nitrogen doses between 150 and 250 kg ha−1. |
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Production and morphological characteristics of marandu grass under inoculation and levels of nitrogen fertilizationProdução e características morfológicas de capim marandu sob inoculação e níveis de adubação nitrogenadaUreiaUreasePerfilhosDosagem.UreaUreaseTillersDose.Forage production and quality are influenced by the supply of nitrogen, especially urea, which is highly subject to losses through volatilization. Alternatively, technology that reduces nitrogen release has emerged, restricting losses by coating the fertilizer with polymers. Furthermore, there is a combination of multifunctional soil microorganisms capable of capturing atmospheric nitrogen and making it available to forage plants as a possibility to reduce external dependence on nitrogen. Thus, this study aimed to evaluate seed inoculation and the use of coated urea in the production of shoot and root dry mass, and the morphological characteristics of Marandu grass (Urochloa brizantha cv. Marandu). The experiment conducted in pots was set up in a completely randomized design with four replications in a 5 x 4 x 4 factorial scheme. Five nitrogen fertilization doses (50, 100, 150, 200, and 250 kg N ha−1) were applied in a single dose, using the synthetic fertilizer urea. The factors consisted of four techniques: fertilization with urea, fertilization with coated urea, Marandu grass seeds treated with commercial inoculant and fertilization with urea, and Marandu grass seeds treated with commercial inoculant and fertilization with coated urea. The observations (forage canopy height, number of tillers per pot, and shoot forage mass) were obtained every 21 days, totaling four sequential evaluation cuts. Root dry mass was obtained by a single measurement in the fourth cut, arranged in a 5 x 4 factorial scheme, with four replications. The dose of 50 kg N ha−1, using conventional urea, characterizes economic and environmental provision to Marandu grass canopy height under adequate soil moisture conditions. The nitrogen dose up to 200 kg ha−1 promotes an increase in the number of tillers, while equal and higher doses ensure maintenance of forage mass production potential for up to 2 cuts. Conventional urea enabled superior root mass production of Marandu grass at nitrogen doses between 150 and 250 kg ha−1.La producción y calidad del forraje está influenciada por el suministro de nitrógeno, especialmente urea, altamente sujeta a pérdidas por volatilización. Alternativamente, aparece tecnología que reduce la liberación de nitrógeno, restringiendo las pérdidas al recubrir el fertilizante con polímeros. También, como posibilidad de reducir la dependencia externa del nitrógeno, la combinación de microorganismos edáficos simbióticos capaces de captar el nitrógeno atmosférico y ponerlo a disposición de las plantas forrajeras. Así, el objetivo fue evaluar la inoculación de semillas y el uso de urea recubierta en la producción de masa seca aérea y radicular y características morfológicas del pasto Marandu (Urochloa brizantha cv. Marandu). El experimento en macetas se organizó en un diseño completamente al azar, con 4 repeticiones, en un esquema factorial 5 x 4 x 4. Se utilizaron cinco dosis de fertilización nitrogenada (50, 100, 150, 200 y 250 kg ha-1 de N) , aplicado en monodosis, utilizando el fertilizante sintético urea. Los factores constituyeron cuatro técnicas: fertilización con urea; urea recubierta con ByoN-Coat®; Semillas de pasto Marandu inoculadas con BioCompost® y fertilización con urea; y urea recubierta con ByoN-Coat® combinada con inoculación de semillas con BioCompost®. Las observaciones (altura del dosel forrajero, número de macollos por maceta y masa aérea forrajera) se obtuvieron con una frecuencia de 21 días, totalizando cuatro cortes evaluativos secuenciales. La masa seca de raíces se obtuvo mediante una sola medida, en el corte 4, organizada en un esquema factorial 5 x 4, con cuatro repeticiones. En condiciones de humedad adecuada del suelo, el fertilizante de urea, a la dosis de 50 kg ha-1 de nitrógeno, caracteriza la provisión económica y ambiental en la altura del dosel del pasto marandú. La dosificación de nitrógeno hasta 200 kg ha-1 promueve un aumento en el número de macollos y; La dosificación superior asegura el mantenimiento del potencial de producción en masa de forraje para hasta 2 cortes. La urea convencional permitió una mayor producción masiva de raíces de Marandu, en dosis de nitrógeno entre 150 y 250 kg ha-1.A produção e qualidade forrageira é influenciada pelo suprimento de nitrogênio, especialmente ureia, altamente sujeito a perdas por volatilização. Alternativamente, surge tecnologia que reduz a liberação de nitrogênio, restringindo as perdas pelo recobrimento do fertilizante com polímeros. Ainda, como possibilidade de reduzir a dependência externa de nitrogênio, decorre a combinação de microrganismos edáficos multifuncionais capazes de captar nitrogênio atmosférico e disponibilizá-lo às plantas forrageiras. Assim, objetivou-se avaliar inoculação de sementes e o uso de ureia revestida na produção de massa seca aérea e radicular e características morfológicas de capim Marandu (Urochloa brizantha cv. Marandu). Experimento em vasos foi organizado em delineamento inteiramente casualizado, com 4 repetições, em esquema fatorial 5 x 4 x 4. Foram empregadas 5 dosagens de adubação nitrogenada (50, 100, 150, 200 e 250 kg ha-1 de N), aplicado em dose única, utilizando o fertilizante sintético ureia. Os fatores constituíram 4 técnicas: adubação com ureia; adubação ureia revestida; sementes de capim Marandu tratadas com inoculante comercial e adubação com ureia; e, sementes de capim Marandu tratadas com inoculante comercial e adubação com ureia revestida. As observações (altura do dossel forrageiro; número de perfilhos por vaso; e, massa aérea de forragem) foram obtidas com frequência de 21 dias, totalizando quatro cortes avaliativos sequenciais. Massa seca de raiz foi obtida por medida única, no corte 4, organizado em esquema fatorial 5 x 4, com quatro repetições. Sob umidade adequada no solo, dosagem de 50 kg ha-1 de nitrogênio, utilizando ureia convencional, caracteriza provisão econômica e ambiental à altura do dossel de capim Marandu. Dosagem de nitrogênio até 200 kg ha-1 promove aumento no número de perfilhos e; dosagem igual e superior, asseguram manutenção do potencial de produção de massa de forragem por até 2 cortes. Ureia convencional viabilizou superior produção de massa de raízes de capim Marandu, nas dosagens de nitrogênio entre 150 e 250 kg ha-1.UEL2023-12-14info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/4845210.5433/1679-0359.2023v44n5p1927Semina: Ciências Agrárias; Vol. 44 No. 5 (2023); 1927-1940Semina: Ciências Agrárias; v. 44 n. 5 (2023); 1927-19401679-03591676-546Xreponame:Semina. Ciências Agrárias (Online)instname:Universidade Estadual de Londrina (UEL)instacron:UELenghttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/48452/49776Copyright (c) 2023 Semina: Ciências Agráriashttp://creativecommons.org/licenses/by-nc/4.0info:eu-repo/semantics/openAccessCodognoto, Luciane da CunhaBranco, Jaisson dos SantosRigo, Vinicius MatiasMatos, Maria Izabel SilvaLima, Lucas Sobral de Farias Rodrigues deConde, Thassiane Telles2023-12-18T20:08:54Zoai:ojs.pkp.sfu.ca:article/48452Revistahttp://www.uel.br/revistas/uel/index.php/semagrariasPUBhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/oaisemina.agrarias@uel.br1679-03591676-546Xopendoar:2023-12-18T20:08:54Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL)false |
dc.title.none.fl_str_mv |
Production and morphological characteristics of marandu grass under inoculation and levels of nitrogen fertilization Produção e características morfológicas de capim marandu sob inoculação e níveis de adubação nitrogenada |
title |
Production and morphological characteristics of marandu grass under inoculation and levels of nitrogen fertilization |
spellingShingle |
Production and morphological characteristics of marandu grass under inoculation and levels of nitrogen fertilization Codognoto, Luciane da Cunha Ureia Urease Perfilhos Dosagem. Urea Urease Tillers Dose. |
title_short |
Production and morphological characteristics of marandu grass under inoculation and levels of nitrogen fertilization |
title_full |
Production and morphological characteristics of marandu grass under inoculation and levels of nitrogen fertilization |
title_fullStr |
Production and morphological characteristics of marandu grass under inoculation and levels of nitrogen fertilization |
title_full_unstemmed |
Production and morphological characteristics of marandu grass under inoculation and levels of nitrogen fertilization |
title_sort |
Production and morphological characteristics of marandu grass under inoculation and levels of nitrogen fertilization |
author |
Codognoto, Luciane da Cunha |
author_facet |
Codognoto, Luciane da Cunha Branco, Jaisson dos Santos Rigo, Vinicius Matias Matos, Maria Izabel Silva Lima, Lucas Sobral de Farias Rodrigues de Conde, Thassiane Telles |
author_role |
author |
author2 |
Branco, Jaisson dos Santos Rigo, Vinicius Matias Matos, Maria Izabel Silva Lima, Lucas Sobral de Farias Rodrigues de Conde, Thassiane Telles |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Codognoto, Luciane da Cunha Branco, Jaisson dos Santos Rigo, Vinicius Matias Matos, Maria Izabel Silva Lima, Lucas Sobral de Farias Rodrigues de Conde, Thassiane Telles |
dc.subject.por.fl_str_mv |
Ureia Urease Perfilhos Dosagem. Urea Urease Tillers Dose. |
topic |
Ureia Urease Perfilhos Dosagem. Urea Urease Tillers Dose. |
description |
Forage production and quality are influenced by the supply of nitrogen, especially urea, which is highly subject to losses through volatilization. Alternatively, technology that reduces nitrogen release has emerged, restricting losses by coating the fertilizer with polymers. Furthermore, there is a combination of multifunctional soil microorganisms capable of capturing atmospheric nitrogen and making it available to forage plants as a possibility to reduce external dependence on nitrogen. Thus, this study aimed to evaluate seed inoculation and the use of coated urea in the production of shoot and root dry mass, and the morphological characteristics of Marandu grass (Urochloa brizantha cv. Marandu). The experiment conducted in pots was set up in a completely randomized design with four replications in a 5 x 4 x 4 factorial scheme. Five nitrogen fertilization doses (50, 100, 150, 200, and 250 kg N ha−1) were applied in a single dose, using the synthetic fertilizer urea. The factors consisted of four techniques: fertilization with urea, fertilization with coated urea, Marandu grass seeds treated with commercial inoculant and fertilization with urea, and Marandu grass seeds treated with commercial inoculant and fertilization with coated urea. The observations (forage canopy height, number of tillers per pot, and shoot forage mass) were obtained every 21 days, totaling four sequential evaluation cuts. Root dry mass was obtained by a single measurement in the fourth cut, arranged in a 5 x 4 factorial scheme, with four replications. The dose of 50 kg N ha−1, using conventional urea, characterizes economic and environmental provision to Marandu grass canopy height under adequate soil moisture conditions. The nitrogen dose up to 200 kg ha−1 promotes an increase in the number of tillers, while equal and higher doses ensure maintenance of forage mass production potential for up to 2 cuts. Conventional urea enabled superior root mass production of Marandu grass at nitrogen doses between 150 and 250 kg ha−1. |
publishDate |
2023 |
dc.date.none.fl_str_mv |
2023-12-14 |
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://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/48452 10.5433/1679-0359.2023v44n5p1927 |
url |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/48452 |
identifier_str_mv |
10.5433/1679-0359.2023v44n5p1927 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/48452/49776 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2023 Semina: Ciências Agrárias http://creativecommons.org/licenses/by-nc/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2023 Semina: Ciências Agrárias http://creativecommons.org/licenses/by-nc/4.0 |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
UEL |
publisher.none.fl_str_mv |
UEL |
dc.source.none.fl_str_mv |
Semina: Ciências Agrárias; Vol. 44 No. 5 (2023); 1927-1940 Semina: Ciências Agrárias; v. 44 n. 5 (2023); 1927-1940 1679-0359 1676-546X reponame:Semina. Ciências Agrárias (Online) instname:Universidade Estadual de Londrina (UEL) instacron:UEL |
instname_str |
Universidade Estadual de Londrina (UEL) |
instacron_str |
UEL |
institution |
UEL |
reponame_str |
Semina. Ciências Agrárias (Online) |
collection |
Semina. Ciências Agrárias (Online) |
repository.name.fl_str_mv |
Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL) |
repository.mail.fl_str_mv |
semina.agrarias@uel.br |
_version_ |
1799306087212515328 |