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Registro Completo |
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Biblioteca(s): |
Embrapa Amazônia Oriental. |
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Data corrente: |
31/05/2016 |
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Data da última atualização: |
19/05/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
CONTRERAS ESPINAL, F. S.; SILVA, E. C. da; MURAOKA, T.; FRANZINI, V. I.; TRIVELIN, P. C. O.; TEIXEIRA, M. B.; SAKADEVAN, K. |
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Afiliação: |
Freddy Sinencio Contreras Espinal, Dominican Institute for Agriculture, Livestock and Forest (IDIAF); Edson Cabral da Silva, USP/CENA; Takashi Muraoka, USP/CENA; VINICIUS IDE FRANZINI, CPATU; Paulo César Ocheuze Trivelin, USP/CENA; Marconi Batista Teixeira, Instituto Federal Goiano – Campus Rio Verde; Karuppan Sakadevan, International Atomic Energy Agency. |
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Título: |
Utilization of nitrogen (15N) from urea and green manures by rice as affected by nitrogen fertilizer rate. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
African Journal of Agricultural Research, v. 11, n. 13, p. 1171-1180, Mar. 2016. |
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DOI: |
10.5897/AJAR2015.10684 |
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Idioma: |
Inglês |
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Conteúdo: |
The use of green manures (GMs) in combination with nitrogen (N) fertilizer application is a promising practice to improve N fertilizer management in agricultural production systems. The main objective of this study was to evaluate the N use efficiency (NUE) of rice plant, derived from GMs including sunn hemp (Crotalaria juncea L.), millet (Pennisetum glaucum L.) and urea in the greenhouse. The experimental treatments included two GMs (sunn hemp-15N and millet-15N), absence of N organic source (without GM residues in soil) and four N rates, as urea-15N (0, 28.6, 57.2 and 85.8 mg N kg-1). The results showed that both rice grain and straw biomass yields under sunn hemp were greater than that of millet or without the application of GM. The NUE of rice under sunn hemp was greater than that under millet (18.9 and 7.8% under sunn hemp and millet, respectively). The urea N application rates did not affect the fertilizer NUE by rice (53.7%) with or without GMs. The NUE of GMs by rice plants ranged from 14.1% and 16.8% for root and shoot, respectively. The study showed that green manures can play an important role in enhancing soil fertility and N supply to subsequent crops. |
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Palavras-Chave: |
Isotopic diluition; Nitrogen mineralization; Oryza sativa L. |
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Thesagro: |
Arroz; Nitrogênio. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/143551/1/830BE3B57851.pdf
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Marc: |
LEADER 02016naa a2200265 a 4500
001 2045905
005 2022-05-19
008 2016 bl uuuu u00u1 u #d
024 7 $a10.5897/AJAR2015.10684$2DOI
100 1 $aCONTRERAS ESPINAL, F. S.
245 $aUtilization of nitrogen (15N) from urea and green manures by rice as affected by nitrogen fertilizer rate.$h[electronic resource]
260 $c2016
520 $aThe use of green manures (GMs) in combination with nitrogen (N) fertilizer application is a promising practice to improve N fertilizer management in agricultural production systems. The main objective of this study was to evaluate the N use efficiency (NUE) of rice plant, derived from GMs including sunn hemp (Crotalaria juncea L.), millet (Pennisetum glaucum L.) and urea in the greenhouse. The experimental treatments included two GMs (sunn hemp-15N and millet-15N), absence of N organic source (without GM residues in soil) and four N rates, as urea-15N (0, 28.6, 57.2 and 85.8 mg N kg-1). The results showed that both rice grain and straw biomass yields under sunn hemp were greater than that of millet or without the application of GM. The NUE of rice under sunn hemp was greater than that under millet (18.9 and 7.8% under sunn hemp and millet, respectively). The urea N application rates did not affect the fertilizer NUE by rice (53.7%) with or without GMs. The NUE of GMs by rice plants ranged from 14.1% and 16.8% for root and shoot, respectively. The study showed that green manures can play an important role in enhancing soil fertility and N supply to subsequent crops.
650 $aArroz
650 $aNitrogênio
653 $aIsotopic diluition
653 $aNitrogen mineralization
653 $aOryza sativa L
700 1 $aSILVA, E. C. da
700 1 $aMURAOKA, T.
700 1 $aFRANZINI, V. I.
700 1 $aTRIVELIN, P. C. O.
700 1 $aTEIXEIRA, M. B.
700 1 $aSAKADEVAN, K.
773 $tAfrican Journal of Agricultural Research$gv. 11, n. 13, p. 1171-1180, Mar. 2016.
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Registro original: |
Embrapa Amazônia Oriental (CPATU) |
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Registro Completo
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Biblioteca(s): |
Embrapa Clima Temperado; Embrapa Florestas. |
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Data corrente: |
09/11/2019 |
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Data da última atualização: |
12/12/2019 |
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Tipo da produção científica: |
Documentos |
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Autoria: |
SANTOS, A.; MAIA, L. dos S.; FERREIRA, T.; DEMETRIO, W. C.; NADOLNY, H. S.; RIBEIRO, L. V.; SCHIEDECK, G.; COSTA, F. A. da; BARTZ, M. L. C.; BROWN, G. G. |
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Afiliação: |
Alessandra Santos; Lilianne dos Santos Maia; Talita Ferreira; Wilian Carlo Demetrio; Herlon Sérgio Nadolny; Louise Vargas Ribeiro; GUSTAVO SCHIEDECK, CPACT; FABIA AMORIM DA COSTA, CPACT; Marie Luise Carolina Bartz; GEORGE GARDNER BROWN, CNPF. |
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Título: |
Minhocas como bioindicadoras da qualidade do solo em ecossistemas na Embrapa Clima Temperado. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
Pelotas: Embrapa Clima Temperado, 2019. |
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Páginas: |
37 p. |
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Série: |
(Embrapa Clima Temperado. Documentos, 482). |
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Idioma: |
Português |
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Thesagro: |
Acidez do Solo; Aeração do Solo; Biologia do Solo; Fauna Edáfica; Húmus; Minhoca. |
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Categoria do assunto: |
--
P Recursos Naturais, Ciências Ambientais e da Terra |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/206987/1/DOCUMENTOS-482.pdf
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Marc: |
LEADER 00873nam a2200301 a 4500
001 2114113
005 2019-12-12
008 2019 bl uuuu u0uu1 u #d
100 1 $aSANTOS, A.
245 $aMinhocas como bioindicadoras da qualidade do solo em ecossistemas na Embrapa Clima Temperado.$h[electronic resource]
260 $aPelotas: Embrapa Clima Temperado$c2019
300 $a37 p.
490 $a(Embrapa Clima Temperado. Documentos, 482).
650 $aAcidez do Solo
650 $aAeração do Solo
650 $aBiologia do Solo
650 $aFauna Edáfica
650 $aHúmus
650 $aMinhoca
700 1 $aMAIA, L. dos S.
700 1 $aFERREIRA, T.
700 1 $aDEMETRIO, W. C.
700 1 $aNADOLNY, H. S.
700 1 $aRIBEIRO, L. V.
700 1 $aSCHIEDECK, G.
700 1 $aCOSTA, F. A. da
700 1 $aBARTZ, M. L. C.
700 1 $aBROWN, G. G.
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Embrapa Clima Temperado (CPACT) |
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