Forage production and nitrogen use efficiency in afrincan liverseed grass
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Caderno de Ciências Agrárias (Online) |
Texto Completo: | https://periodicos.ufmg.br/index.php/ccaufmg/article/view/38750 |
Resumo: | The objective was to teste the effect of nitrogen (N) doses in the forage production, plant-part composition and structure of African liverseed grass (Urochloa mosambicensis) and to estimate the plant nitrogen use efficiency (NUE). The experimental design was in randomized block with six nitrogen doses 0, 25, 50, 75, 100 e 125 mg/dm3 and six replicates. The experiment was carried in greenhouse and the nutrients were applied in nutrient solution. There was N effect in all productive, morphological and structural characteristics studied in exception to leaves percentage. The N stimulated linearly the forage dry mass production (DMP), with an increase of 224.11% using 125 mg/dm³. There was also a positive effect of N in the number of tillers, which increased 82.60%. The number of inflorescences increased 712.29% with the maximum N application. Kd, estimated value that corresponds to the dose of N necessary to obtain half of the theoretical maximum production of MST (13,157.8 mg/vase) was 27.72 mg/dm3 of N. For this concentration, the NUE was of 40.5 mg of DMP for each mg of N Applied. The N increases linearly the total and leaves dry mass production, but it is associated to higher proportion of stems and inflorescences in the forage. The use of high nitrogen doses reduces the NUE and it is recommended to use 27.72 mg/dm³ and 23.03 mg/dm³ of N to optimizes the total and leaves mass of African liverseed grass, respectively. |
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Forage production and nitrogen use efficiency in afrincan liverseed grassProdução de forragem e eficiência no uso do nitrogênio em capim-correnteComposição morfológicaConstante de Michaelis-MentenMassa seca de forragemParâmetros cinéticosUrochloa mosambicensisForage dry massKinetic parametersMichaelis-Menten constantPlant-part compositionUrochloa mosambicensisThe objective was to teste the effect of nitrogen (N) doses in the forage production, plant-part composition and structure of African liverseed grass (Urochloa mosambicensis) and to estimate the plant nitrogen use efficiency (NUE). The experimental design was in randomized block with six nitrogen doses 0, 25, 50, 75, 100 e 125 mg/dm3 and six replicates. The experiment was carried in greenhouse and the nutrients were applied in nutrient solution. There was N effect in all productive, morphological and structural characteristics studied in exception to leaves percentage. The N stimulated linearly the forage dry mass production (DMP), with an increase of 224.11% using 125 mg/dm³. There was also a positive effect of N in the number of tillers, which increased 82.60%. The number of inflorescences increased 712.29% with the maximum N application. Kd, estimated value that corresponds to the dose of N necessary to obtain half of the theoretical maximum production of MST (13,157.8 mg/vase) was 27.72 mg/dm3 of N. For this concentration, the NUE was of 40.5 mg of DMP for each mg of N Applied. The N increases linearly the total and leaves dry mass production, but it is associated to higher proportion of stems and inflorescences in the forage. The use of high nitrogen doses reduces the NUE and it is recommended to use 27.72 mg/dm³ and 23.03 mg/dm³ of N to optimizes the total and leaves mass of African liverseed grass, respectively.Objetivou-se testar o efeito de doses de nitrogênio (N) sobre a produção, composição morfológica, estrutura e eficiência no uso do N (EUN) em capim-corrente (Urochloa mosambicensis). Foi utilizado delineamento em blocos ao acaso com seis repetições e seis tratamentos referentes às doses de 0, 25, 50, 75, 100 e 125 mg/dm³ de N. O experimento foi conduzido em casa de vegetação e o N foi aplicado por solução nutritiva. Houve efeito significativo do N sobre as variáveis de produção, composição morfológica e características estruturais, exceto para porcentagem de folhas. As doses de N estimularam linearmente a massa seca total (MST), que aumentou 224,11% com a aplicação de 125 mg/dm3. Também houve efeito positivo sobre o número de perfilhos, que aumentou 82,60%. O uso de 125 mg/dm³de N aumentou o número de inflorescências em 712,29%. Houve aumento significativo da proporção de colmos e inflorescência nas plantas adubadas com N. O Kd, valor estimado que corresponde a dose de N necessária para a obtenção da metade da produção máxima teórica de MST (13.157,8 mg/vaso), correspondeu a 27,72 mg/dm3 de N. Para essa dose, a eficiência aproximada no uso do N foi de 40,5 mg de MST para cada mg de N. O N aumenta linearmente a produção de massa seca total e de folhas, mas o aumento está associado a maior proporção de colmos e inflorescências na forragem. O aumento da dose de N reduz a EUN, sendo recomendadas doses de 27,72 mg/dm³ e 23,03 mg/dm³ para se otimizar a produção de massa seca total e de folhas do capim-corrente, respectivamente.Universidade Federal de Minas Gerais2022-07-28info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdftext/htmlhttps://periodicos.ufmg.br/index.php/ccaufmg/article/view/3875010.35699/2447-6218.2022.38750Agrarian Sciences Journal; Vol. 14 (2022)Caderno de Ciências Agrárias; v. 14 (2022)2447-62181984-6738reponame:Caderno de Ciências Agrárias (Online)instname:Universidade Federal de Minas Gerais (UFMG)instacron:UFMGporhttps://periodicos.ufmg.br/index.php/ccaufmg/article/view/38750/31019https://periodicos.ufmg.br/index.php/ccaufmg/article/view/38750/31020Copyright (c) 2022 Caderno de Ciências Agráriashttps://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessGonçalves, Maikom Bruno Silva, Ingrid Souza Silva, Alessandro José da Santos, André Felipe Ferreira dos Santos, Henrique Junio Soares Mourthé, Mário Henrique FrançaBraz, Thiago Gomes dos Santos 2022-08-10T00:23:59Zoai:periodicos.ufmg.br:article/38750Revistahttps://periodicos.ufmg.br/index.php/ccaufmgPUBhttps://periodicos.ufmg.br/index.php/ccaufmg/oaiccaufmg@ica.ufmg.br2447-62181984-6738opendoar:2022-08-10T00:23:59Caderno de Ciências Agrárias (Online) - Universidade Federal de Minas Gerais (UFMG)false |
dc.title.none.fl_str_mv |
Forage production and nitrogen use efficiency in afrincan liverseed grass Produção de forragem e eficiência no uso do nitrogênio em capim-corrente |
title |
Forage production and nitrogen use efficiency in afrincan liverseed grass |
spellingShingle |
Forage production and nitrogen use efficiency in afrincan liverseed grass Gonçalves, Maikom Bruno Composição morfológica Constante de Michaelis-Menten Massa seca de forragem Parâmetros cinéticos Urochloa mosambicensis Forage dry mass Kinetic parameters Michaelis-Menten constant Plant-part composition Urochloa mosambicensis |
title_short |
Forage production and nitrogen use efficiency in afrincan liverseed grass |
title_full |
Forage production and nitrogen use efficiency in afrincan liverseed grass |
title_fullStr |
Forage production and nitrogen use efficiency in afrincan liverseed grass |
title_full_unstemmed |
Forage production and nitrogen use efficiency in afrincan liverseed grass |
title_sort |
Forage production and nitrogen use efficiency in afrincan liverseed grass |
author |
Gonçalves, Maikom Bruno |
author_facet |
Gonçalves, Maikom Bruno Silva, Ingrid Souza Silva, Alessandro José da Santos, André Felipe Ferreira dos Santos, Henrique Junio Soares Mourthé, Mário Henrique França Braz, Thiago Gomes dos Santos |
author_role |
author |
author2 |
Silva, Ingrid Souza Silva, Alessandro José da Santos, André Felipe Ferreira dos Santos, Henrique Junio Soares Mourthé, Mário Henrique França Braz, Thiago Gomes dos Santos |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Gonçalves, Maikom Bruno Silva, Ingrid Souza Silva, Alessandro José da Santos, André Felipe Ferreira dos Santos, Henrique Junio Soares Mourthé, Mário Henrique França Braz, Thiago Gomes dos Santos |
dc.subject.por.fl_str_mv |
Composição morfológica Constante de Michaelis-Menten Massa seca de forragem Parâmetros cinéticos Urochloa mosambicensis Forage dry mass Kinetic parameters Michaelis-Menten constant Plant-part composition Urochloa mosambicensis |
topic |
Composição morfológica Constante de Michaelis-Menten Massa seca de forragem Parâmetros cinéticos Urochloa mosambicensis Forage dry mass Kinetic parameters Michaelis-Menten constant Plant-part composition Urochloa mosambicensis |
description |
The objective was to teste the effect of nitrogen (N) doses in the forage production, plant-part composition and structure of African liverseed grass (Urochloa mosambicensis) and to estimate the plant nitrogen use efficiency (NUE). The experimental design was in randomized block with six nitrogen doses 0, 25, 50, 75, 100 e 125 mg/dm3 and six replicates. The experiment was carried in greenhouse and the nutrients were applied in nutrient solution. There was N effect in all productive, morphological and structural characteristics studied in exception to leaves percentage. The N stimulated linearly the forage dry mass production (DMP), with an increase of 224.11% using 125 mg/dm³. There was also a positive effect of N in the number of tillers, which increased 82.60%. The number of inflorescences increased 712.29% with the maximum N application. Kd, estimated value that corresponds to the dose of N necessary to obtain half of the theoretical maximum production of MST (13,157.8 mg/vase) was 27.72 mg/dm3 of N. For this concentration, the NUE was of 40.5 mg of DMP for each mg of N Applied. The N increases linearly the total and leaves dry mass production, but it is associated to higher proportion of stems and inflorescences in the forage. The use of high nitrogen doses reduces the NUE and it is recommended to use 27.72 mg/dm³ and 23.03 mg/dm³ of N to optimizes the total and leaves mass of African liverseed grass, respectively. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-07-28 |
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://periodicos.ufmg.br/index.php/ccaufmg/article/view/38750 10.35699/2447-6218.2022.38750 |
url |
https://periodicos.ufmg.br/index.php/ccaufmg/article/view/38750 |
identifier_str_mv |
10.35699/2447-6218.2022.38750 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://periodicos.ufmg.br/index.php/ccaufmg/article/view/38750/31019 https://periodicos.ufmg.br/index.php/ccaufmg/article/view/38750/31020 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2022 Caderno de Ciências Agrárias https://creativecommons.org/licenses/by/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2022 Caderno de Ciências Agrárias https://creativecommons.org/licenses/by/4.0 |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf text/html |
dc.publisher.none.fl_str_mv |
Universidade Federal de Minas Gerais |
publisher.none.fl_str_mv |
Universidade Federal de Minas Gerais |
dc.source.none.fl_str_mv |
Agrarian Sciences Journal; Vol. 14 (2022) Caderno de Ciências Agrárias; v. 14 (2022) 2447-6218 1984-6738 reponame:Caderno de Ciências Agrárias (Online) instname:Universidade Federal de Minas Gerais (UFMG) instacron:UFMG |
instname_str |
Universidade Federal de Minas Gerais (UFMG) |
instacron_str |
UFMG |
institution |
UFMG |
reponame_str |
Caderno de Ciências Agrárias (Online) |
collection |
Caderno de Ciências Agrárias (Online) |
repository.name.fl_str_mv |
Caderno de Ciências Agrárias (Online) - Universidade Federal de Minas Gerais (UFMG) |
repository.mail.fl_str_mv |
ccaufmg@ica.ufmg.br |
_version_ |
1797042442030022656 |