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| 7. |  | SILVA, M. S. L. da; NASCIMENTO, A. F. do; SILVEIRA, H. L. F. da. Spatial variability of soil attributes in a cultivated area of underground dam in the State of the Paraíba, Brazil. In: WORLD CONGRESS OF SOIL SCIENCE, 21., 2018, Rio de Janeiro. Soil science: beyond food and fuel: proceedings... Viçosa, MG: SBCS, 2019. v. 2, p. 267. WCSS 2018.| Biblioteca(s): Embrapa Solos. |
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| 10. | | SILVEIRA, H. L. F. da; VETTORAZZI, C. A.; VALENTE, R. de O. A. Avaliação multicriterial no mapeamento de risco de incêndios florestais, em ambiente SIG, na bacia do Rio Corumbataí, SP. Revista Árvore, Viçosa, MG, v. 32, n. 2, p. 259-268, mar./abr. 2008.| Biblioteca(s): Embrapa Florestas; Embrapa Solos. |
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| 15. | | SILVA, A. B. da; GOMES, E. C; ACCIOLY, L. J. de O.; SILVEIRA, H. L. F. da. [Mapa] solos do município de Feliz Deserto, Alagoas. In: REUNIÃO BRASILEIRA DE MANEJO E CONSERVAÇÃO DO SOLO E DA ÁGUA, 17., 2008, Rio de Janeiro. Manejo e conservação do solo e da água no contexto das mudanças ambientais. Rio de Janeiro: SBCS: Embrapa Solos: Embrapa Agrobiologia, 2008. (Embrapa Solos. Documentos, 101). 1 mapa color.| Biblioteca(s): Embrapa Solos. |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Café. Para informações adicionais entre em contato com biblioteca@embrapa.br. |
Registro Completo
|
Biblioteca(s): |
Embrapa Café. |
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Data corrente: |
11/03/2011 |
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Data da última atualização: |
11/03/2011 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
ALVARENGA GARCIA, A. L.; GARCIA, A. W. R.; PADILHA, L. |
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Afiliação: |
FUNDAÇÃO PROCAFÉ; FUNDAÇÃO PROCAFÉ; LILIAN PADILHA, SAPC. |
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Título: |
Application of urea with urease inhibitor in young coffee plants. |
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Ano de publicação: |
2008 |
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Fonte/Imprenta: |
In: INTERNATIONAL CONFERENCE ON COFFEE SCIENCE, 22. 2008, Campinas, São Paulo, Brazil. |
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Idioma: |
Inglês |
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Conteúdo: |
The nitrogen is the most required nutrient by the coffee culture and its application is usually done in the form of urea. Although easy to handle, significant losses of N to atmosphere may occurs due to the transformation of urea in ammonium, as a consequence of urease action, an enzyme produced by soil microorganisms. This work aimed to evaluate NBPT efficiency, an urease inhibitor, in the reduction of N losses by volatilization. The work was carried out in a greenhouse using a factorial design comprised of three N doses in the form of urea, in the presence and absence of NBPT, applied in two times, and with two ways of irrigation: before and after fertilizer application. Three independent treatments were added: a control without N, and 7.2g of N in just one application with and without NBPT. Dry weight and mobilized N were evaluated four months after the treatments. It was found that the addition of NBPT to urea significantly increased dry weight and mobilized N per plant, and that the response was proportional to the N applied. No response was observed to the time of irrigation. In the treatments where N was applied in just one dose, plant death was observed in two days in absence of NBPT, or in six days, when NBPT was used, corroborating the idea that NBPT can delay N volatilization. |
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Palavras-Chave: |
Coffee plant. |
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Thesaurus NAL: |
Urea. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01813nam a2200157 a 4500
001 1880593
005 2011-03-11
008 2008 bl uuuu u00u1 u #d
100 1 $aALVARENGA GARCIA, A. L.
245 $aApplication of urea with urease inhibitor in young coffee plants.$h[electronic resource]
260 $aIn: INTERNATIONAL CONFERENCE ON COFFEE SCIENCE, 22. 2008, Campinas, São Paulo, Brazil.$c2008
520 $aThe nitrogen is the most required nutrient by the coffee culture and its application is usually done in the form of urea. Although easy to handle, significant losses of N to atmosphere may occurs due to the transformation of urea in ammonium, as a consequence of urease action, an enzyme produced by soil microorganisms. This work aimed to evaluate NBPT efficiency, an urease inhibitor, in the reduction of N losses by volatilization. The work was carried out in a greenhouse using a factorial design comprised of three N doses in the form of urea, in the presence and absence of NBPT, applied in two times, and with two ways of irrigation: before and after fertilizer application. Three independent treatments were added: a control without N, and 7.2g of N in just one application with and without NBPT. Dry weight and mobilized N were evaluated four months after the treatments. It was found that the addition of NBPT to urea significantly increased dry weight and mobilized N per plant, and that the response was proportional to the N applied. No response was observed to the time of irrigation. In the treatments where N was applied in just one dose, plant death was observed in two days in absence of NBPT, or in six days, when NBPT was used, corroborating the idea that NBPT can delay N volatilization.
650 $aUrea
653 $aCoffee plant
700 1 $aGARCIA, A. W. R.
700 1 $aPADILHA, L.
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