| |
|
|
| Registros recuperados : 77 | |
| 8. |  | SONG, G.; NOVOTNY, E. H.; HAYES, M. H. B.; AZEVEDO, E. R. de; BONAGAMBA, T. J. Char and humin fractions in Amazonian dark earths. In: INTERNATIONAL MEETING OF THE INTERNATIONAL HUMIC SUBSTANCES SOCIETY, 14., 2008, Saint Petersburg. From molecular understanding to innovative applications of humic substances: proceedings... Moscow: Lomonosov Moscow State University, 2008. v. 1, p. 311-314.| Biblioteca(s): Embrapa Solos. |
|    |
| 12. | | SOUZA, A.; CARNEIRO, G.; BOYD, A.; HURLIMANN, M.; COLNAGO, L. A.; BONAGAMBA, T. Evaluation of T1/T2 ratio calculation methods from 1- and 2-D NMR experiments: application in porus media characterization. In: NUCLEAR MAGNETIC RESONANCE USERS MEETING, 15., 2015, Angra dos Reis. Program and abstracts book... Rio de Janeiro: AUREMN, 2015. p. 109.| Biblioteca(s): Embrapa Instrumentação. |
| |
| 16. | | GIOTTO, M. V.; BONAGAMBA, T. J.; PANEPUCCI, H. C.; MATTOSO, L. H. C.; VALENCIANO, G. R. Estudo da polianilina complexada com LiClO4 por RMN do 7Li. In: ENCONTRO DE USUARIOS DE RESSONANCIA MAGNETICA NUCLEAR, 6., maio 1997, Angra dos Reis, RJ. Resumos... Rio de Janeiro: AUREMN, 1997. p. 64.| Biblioteca(s): Embrapa Instrumentação. |
| |
| 17. | | GIOTTO, M. V.; BONAGAMBA, T. J.; PANEPUCCI, H.; MATTOSO, L. H. C.; VALENCIANO, G. R. Estudo da polianilina complexada com LiClO4 por RMN do 7Li. In: ENCONTRO DE USUARIOS DE RESSONANCIA MAGNETICA NUCLEAR, 6., maio 1997, Angra dos Reis, RJ. Anais... Rio de Janeiro: AUREMN, 1997. p. 339-349.| Biblioteca(s): Embrapa Instrumentação. |
| |
| 18. | | COLNAGO, L. A.; MARTIN NETO, L.; MIYAZAWA, M.; VIEIRA, E. M.; BONAGAMBA, T. J.; PANEPUCCI, H. Estudo da razão E4/E6 e aromaticidade por RMN de C13 em estado sólido de ah de um latossolo roxo. In: ENCONTRO BRASILEIRO SOBRE SUBSTÂNCIAS HÚMICAS, 2., nov. 1997, São Carlos, SP. Anais...[Resumos...]. São Carlos: Embrapa-CNPDIA, 1997. p. 167.| Biblioteca(s): Embrapa Instrumentação. |
| |
| 19. | | MARTIN NETO, L.; BONAGAMBA, T.; COLNAGO, L. A.; PANEPUCCI, H.; VIEIRA, E. M.; MIYAZAWA, M. Efeitos de diferentes manejos do solo sobre substâncias húmicas: avaliação com ressonância magnética nuclear. IN: CONGRESSO BRASILEIRO DE CIÊNÇIA DO SOLO, 25., 1995, Viçosa, MG. Resumos expandidos. Viçosa: UFV, 1995. v.3, p. 1810-1812.| Biblioteca(s): Embrapa Tabuleiros Costeiros. |
| |
| Registros recuperados : 77 | |
|
|
|
Registro Completo
|
Biblioteca(s): |
Embrapa Milho e Sorgo. |
|
Data corrente: |
27/01/2021 |
|
Data da última atualização: |
15/03/2021 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Circulação/Nível: |
A - 2 |
|
Autoria: |
MACIEL, D. C.; PASSOS, A. M. A. dos; NETTO, D. A. M.; PARRELLA, N. N. L. D.; VITOR, C. M. T.; ROCHA, N. M.; ANTUNES NETO, A.; OLIVEIRA JÚNIOR, A. H. de. |
|
Afiliação: |
Danilo Cordeiro Maciel, Universidade Federal de São João del-Rei; ALEXANDRE MARTINS ABDAO DOS PASSOS, CNPMS; Dea Alécia Martins Netto, Pesquisadora aposentada, Embrapa Milho e Sorgo; Nádia Nardely Lacerda Durães Parrella, Universidade Federal de São João del-Rei; Cláudio Manoel Teixeira Vitor, Universidade Federal de São João del-Rei; Nayara Mourão Rocha, Universidade Federal de São João del-Rei; Antônio Antunes Neto, Universidade Federal de São João del-Rei; Afonso Henrique de Oliveira Júnior, Universidade Federal de São João del-Rei. |
|
Título: |
Levels of urea fertilizer on germination and vigor of Urochloa brizantha cv Piatã seeds. |
|
Ano de publicação: |
2020 |
|
Fonte/Imprenta: |
International Journal of Development Research, v. 10, n. 12, p. 42537-42540, 2020. |
|
DOI: |
https://doi.org/10.37118/ijdr.20567.12.2020 |
|
Idioma: |
Inglês |
|
Conteúdo: |
The use of high-quality seeds is a premise for the implantation of pasture under sustainable farming systems to livestock production. The usual practice is to mix Urochloa seeds with nitrogenous to use these inputs. The objective of this study was to evaluate the effect of contact time (0, 3, 6, 12, 24, 48, and 72 hours) and amounts (50, 100, and 150 kg N-1) of urea on Urochloa brizantha seeds physiological quality. A completely randomized experimental design was used, with three replicates. Seedling emergence, germination of normal and abnormal seedlings, and dead seeds were evaluated. It was found that after 3 hours of contact, all seeds lose quality. The number of dead seeds presented a significant (p <0.001) and negative correlation (91.7%) for the number of normal seedlings. The mix ratio between urea and seed affects the seed deterioration index, expressing lower seedlings emerged, concerning control treatment. The highest level of urea (150 kg N-1 ) decreased the emergence index by 23.3% related to the use lowest dose (50 kg N-1). It is concluded that the reduction in viability and vigor begins after 3 hours of contact with fertilizers, so the number of unviable seeds highly increases after 48-hours of contact. |
|
Palavras-Chave: |
Curativo lateral; Tecnologia de sementes. |
|
Thesagro: |
Brachiaria Brizantha; Deterioração; Germinação; Semente; Uréia. |
|
Categoria do assunto: |
-- |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/220662/1/Levels-urea.pdf
|
|
Marc: |
LEADER 02182naa a2200301 a 4500
001 2129589
005 2021-03-15
008 2020 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.37118/ijdr.20567.12.2020$2DOI
100 1 $aMACIEL, D. C.
245 $aLevels of urea fertilizer on germination and vigor of Urochloa brizantha cv Piatã seeds.$h[electronic resource]
260 $c2020
520 $aThe use of high-quality seeds is a premise for the implantation of pasture under sustainable farming systems to livestock production. The usual practice is to mix Urochloa seeds with nitrogenous to use these inputs. The objective of this study was to evaluate the effect of contact time (0, 3, 6, 12, 24, 48, and 72 hours) and amounts (50, 100, and 150 kg N-1) of urea on Urochloa brizantha seeds physiological quality. A completely randomized experimental design was used, with three replicates. Seedling emergence, germination of normal and abnormal seedlings, and dead seeds were evaluated. It was found that after 3 hours of contact, all seeds lose quality. The number of dead seeds presented a significant (p <0.001) and negative correlation (91.7%) for the number of normal seedlings. The mix ratio between urea and seed affects the seed deterioration index, expressing lower seedlings emerged, concerning control treatment. The highest level of urea (150 kg N-1 ) decreased the emergence index by 23.3% related to the use lowest dose (50 kg N-1). It is concluded that the reduction in viability and vigor begins after 3 hours of contact with fertilizers, so the number of unviable seeds highly increases after 48-hours of contact.
650 $aBrachiaria Brizantha
650 $aDeterioração
650 $aGerminação
650 $aSemente
650 $aUréia
653 $aCurativo lateral
653 $aTecnologia de sementes
700 1 $aPASSOS, A. M. A. dos
700 1 $aNETTO, D. A. M.
700 1 $aPARRELLA, N. N. L. D.
700 1 $aVITOR, C. M. T.
700 1 $aROCHA, N. M.
700 1 $aANTUNES NETO, A.
700 1 $aOLIVEIRA JÚNIOR, A. H. de
773 $tInternational Journal of Development Research$gv. 10, n. 12, p. 42537-42540, 2020.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Milho e Sorgo (CNPMS) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Nenhum registro encontrado para a expressão de busca informada. |
|
|
