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 | Acesso ao texto completo restrito à biblioteca da Embrapa Arroz e Feijão. Para informações adicionais entre em contato com cnpaf.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Arroz e Feijão. |
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Data corrente: |
18/06/2014 |
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Data da última atualização: |
17/07/2014 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
FAGERIA, N. K.; CARVALHO, M. C. S. |
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Afiliação: |
NAND KUMAR FAGERIA, CNPAF; MARIA DA CONCEICAO SANTANA CARVALHO, CNPAF. |
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Título: |
Comparison of conventional and polymer coated urea as nitrogen sources for lowland rice production. |
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Ano de publicação: |
2014 |
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Fonte/Imprenta: |
Journal of Plant Nutrition, New York, v. 37, n. 8, p. 1358-1371, July 2014. |
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DOI: |
10.1080/01904167.2014.888736 |
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Idioma: |
Inglês |
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Conteúdo: |
Nitrogen (N) is one of the most yield limiting nutrients in lowland rice production. Improving N use efficiency is essential to reduce cost of crop production and environmental pollution. A greenhouse experiment was conducted with the objective to compare conventional and polymer coated urea for lowland rice production. Grain yield, straw yield, panicle density, maximum root length, and root dry weight were significantly increased in a quadratic fashion with the increase of N rate from 0 to 400 mg kg−1 soil. Nitrogen source X N rate interactions for most of these traits were not significant, indicating that lowland rice responded similarly to change in N rates of two N sources. Based on regression equations, maximum grain yield was obtained with the application of 258 mg N kg−1 soil and maximum straw yield was obtained with the addition of 309 mg N kg−1 soil. Nitrogen use efficiency (grain yield per unit of N applied) was maximum for polymer coated urea compared to conventional urea. Root length and root dry weight improved at an adequate N rate, indicating importance of N fertilization in the absorption of water and nutrients and consequently yield. Polymer coated urea had higher soil exchangeable calcium (Ca) and magnesium (Mg), Ca saturation, Mg saturation, base saturation, and effective cation exchange capacity compared to conventional urea. There was a highly significant decrease in soil exchangeable potassium (K) with increasing N rates at harvest of rice plants. MenosNitrogen (N) is one of the most yield limiting nutrients in lowland rice production. Improving N use efficiency is essential to reduce cost of crop production and environmental pollution. A greenhouse experiment was conducted with the objective to compare conventional and polymer coated urea for lowland rice production. Grain yield, straw yield, panicle density, maximum root length, and root dry weight were significantly increased in a quadratic fashion with the increase of N rate from 0 to 400 mg kg−1 soil. Nitrogen source X N rate interactions for most of these traits were not significant, indicating that lowland rice responded similarly to change in N rates of two N sources. Based on regression equations, maximum grain yield was obtained with the application of 258 mg N kg−1 soil and maximum straw yield was obtained with the addition of 309 mg N kg−1 soil. Nitrogen use efficiency (grain yield per unit of N applied) was maximum for polymer coated urea compared to conventional urea. Root length and root dry weight improved at an adequate N rate, indicating importance of N fertilization in the absorption of water and nutrients and consequently yield. Polymer coated urea had higher soil exchangeable calcium (Ca) and magnesium (Mg), Ca saturation, Mg saturation, base saturation, and effective cation exchange capacity compared to conventional urea. There was a highly significant decrease in soil exchangeable potassium (K) with increasing N rates at harvest of ... Mostrar Tudo |
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Thesagro: |
Arroz; Nitrogênio; Oryza sativa. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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Marc: |
LEADER 02097naa a2200181 a 4500
001 1988639
005 2014-07-17
008 2014 bl uuuu u00u1 u #d
024 7 $a10.1080/01904167.2014.888736$2DOI
100 1 $aFAGERIA, N. K.
245 $aComparison of conventional and polymer coated urea as nitrogen sources for lowland rice production.$h[electronic resource]
260 $c2014
520 $aNitrogen (N) is one of the most yield limiting nutrients in lowland rice production. Improving N use efficiency is essential to reduce cost of crop production and environmental pollution. A greenhouse experiment was conducted with the objective to compare conventional and polymer coated urea for lowland rice production. Grain yield, straw yield, panicle density, maximum root length, and root dry weight were significantly increased in a quadratic fashion with the increase of N rate from 0 to 400 mg kg−1 soil. Nitrogen source X N rate interactions for most of these traits were not significant, indicating that lowland rice responded similarly to change in N rates of two N sources. Based on regression equations, maximum grain yield was obtained with the application of 258 mg N kg−1 soil and maximum straw yield was obtained with the addition of 309 mg N kg−1 soil. Nitrogen use efficiency (grain yield per unit of N applied) was maximum for polymer coated urea compared to conventional urea. Root length and root dry weight improved at an adequate N rate, indicating importance of N fertilization in the absorption of water and nutrients and consequently yield. Polymer coated urea had higher soil exchangeable calcium (Ca) and magnesium (Mg), Ca saturation, Mg saturation, base saturation, and effective cation exchange capacity compared to conventional urea. There was a highly significant decrease in soil exchangeable potassium (K) with increasing N rates at harvest of rice plants.
650 $aArroz
650 $aNitrogênio
650 $aOryza sativa
700 1 $aCARVALHO, M. C. S.
773 $tJournal of Plant Nutrition, New York$gv. 37, n. 8, p. 1358-1371, July 2014.
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Embrapa Arroz e Feijão (CNPAF) |
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| Registros recuperados : 15 | |
| 10. |  | COSTA, H. G. F.; CUNHA, D. W.; SANTOS, I. M. dos; CARNEIRO, M. V. O.; CARVALHO, F. O.; PEREIRA, G. E.; NEGRO-DELLACQUA, M. Características físico-químicas e farmacológicas de vinhos do Vale do São Francisco. Revista Saúde e Desenvolvimento, v. 9, n. 5, p. 191-211, 2016.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 5 |
| Biblioteca(s): Embrapa Semiárido; Embrapa Uva e Vinho. |
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| 11. | | SANTOS, A. M. T. dos; SANTOS, I. M. dos; OLIVEIRA, W. P. de; LIMA, K. de M.; PEREIRA, G. E.; BIASOTO, A. C. T.; NEGRO-DELLACQUA, M. Efeitos in vivo e in vitro de polifenóis presentes em vinhos tintos do Vale do São Francisco. Revista Brasileira de Plantas Medicinais, v. 23, n. 3, p. 163-170, 2021.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
| Biblioteca(s): Embrapa Semiárido. |
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| 12. | | VASCONCELOS, R. A. de; SANTOS, R. C. dos; VASCONCELOS, F. M. T. de; SANTOS, I. M. dos; MELO FILHO, P. de A. Seleção de linhagens precoces e tardias de amendoim rasteiro na Zona da Mata norte do estado de Pernambuco. CONGRESSO BRASILEIRO DE MAMONA, 5.; SIMPÓSIO INTERNACIONAL DE OLEAGINOSAS ENERGÉTICAS, 2.; FÓRUM CAPIXABA DE PINHÃO-MANSO, 1., 2012, Guarapari. Desafios e Oportunidades: anais. Campina Grande: Embrapa Algodão, 2012. p. 389| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Algodão. |
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| 13. | | SANTOS NETO, A. F. DOS; SILVA, E. P. DA; BARROS, R. V. A. M. DE; PEREIRA, J. W. DE L.; SANTOS, I. M. DOS; MELO FILHO, P. DE A.; SANTOS, R. C. dos. Influência do sombreamento sobre o crescimento do amendoim. In: JORNADA DE ENSINO, PESQUISA E EXTENSÃO, 11., 2011, Recife. Anais... Recife: UFRPE, 2011. 3 p.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Algodão. |
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| 14. | | OLIVEIRA, W. P. de; BIASOTO, A. C. T.; MARQUES, V. F.; SANTOS, I. M. dos; MAGALHÃES, K.; CORREA, L. C.; NEGRO-DELLACQUA. M.; MIRANDA, M. S.; CAMARGO, A. C. de; SHAHIDI, F. Phenolics from winemaking by-products better decrease VLDL-cholesterol and triacylglycerol levels than those of red wine in wistar rats. Journal of Food Science, v, 82, n. 10, p. 2432-2437, 2017.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
| Biblioteca(s): Embrapa Semiárido. |
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| 15. | | SANTOS, I. M. dos; SANTOS, V. L. dos A.; MARQUES, V. F. P.; GUIMARÃES, D. G.; OLIVEIRA, W. P.; LIMA, K. de M.; SANTOS, A. C. F. dos; NEGRO-DELLACQUA, M.; BIASOTO, A. C. T. Syrah tropical red wine and residue health benefits according to in vitro and in vivo analysis using Wistar rats. In: INTERNATIONAL SYMPOSIUM ON TROPICAL WINES, 5., 2016, Petrolina. Book of abstracts... Petrolina: Embrapa Semiárido, 2016. p. 62.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Semiárido. |
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| Registros recuperados : 15 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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