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Registro Completo |
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Biblioteca(s): |
Embrapa Instrumentação; Embrapa Meio Ambiente. |
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Data corrente: |
26/09/2012 |
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Data da última atualização: |
26/02/2013 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
JESUS, K. R. E. de; ASSIS, O. B. G. de. |
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Afiliação: |
KATIA REGINA EVARISTO DE JESUS, CNPMA; ODILIO BENEDITO GARRIDO DE ASSIS, CNPDIA. |
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Título: |
Cenário atual das nanotecnologias no Brasil: prospecção da percepção da comunidade científica. |
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Ano de publicação: |
2012 |
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Fonte/Imprenta: |
In: WORKSHOP DA REDE DE NANOTECNOLOGIA APLICADA AO AGRONEGÓCIO, 6., 2012, Fortaleza. Anais... São Carlos: Embrapa Instrumentação; Fortaleza: Embrapa Agroindústria Tropical, 2012. p. 504-506. |
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Idioma: |
Português |
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Conteúdo: |
Resumo: A nanotecnologia oferece a perspectiva de grandes avanços no processo de produção, nas áreas de agricultura e saúde, promovendo melhoria da qualidade de vida e reduzindo os impactos sobre o meio ambiente. Apesar de um aumento progressivo na utilização das nanotecnologias em todo o mundo, seu potencial ainda encontra-se reprimido no Brasil, devido ao estágio inicial de desenvolvimento. Portanto, as informações geradas a partir da análise e prospecção da percepção da comunidade científica atuante nas áreas correlatas da nanotecnologia podem auxiliar a formulação de políticas e regulamentações permitindo que os legisladores e formuladores de políticas públicas versem adequadamente sobre o tema. |
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Palavras-Chave: |
Indicadores de impacto; Método de avaliação de impactos; Nanotecnologia. |
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Thesaurus Nal: |
Nanotechnology. |
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Categoria do assunto: |
--
X Pesquisa, Tecnologia e Engenharia |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/73598/1/2012AA017.pdf
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/186172/1/Cenario-atual-das-nanotecnologias-no-brasil-prospeccao-da-percepcao-da-comunidade-cientifica..pdf
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Marc: |
LEADER 01451nam a2200169 a 4500
001 1944559
005 2013-02-26
008 2012 bl uuuu u00u1 u #d
100 1 $aJESUS, K. R. E. de
245 $aCenário atual das nanotecnologias no Brasil$bprospecção da percepção da comunidade científica.$h[electronic resource]
260 $aIn: WORKSHOP DA REDE DE NANOTECNOLOGIA APLICADA AO AGRONEGÓCIO, 6., 2012, Fortaleza. Anais... São Carlos: Embrapa Instrumentação; Fortaleza: Embrapa Agroindústria Tropical, 2012. p. 504-506.$c2012
520 $aResumo: A nanotecnologia oferece a perspectiva de grandes avanços no processo de produção, nas áreas de agricultura e saúde, promovendo melhoria da qualidade de vida e reduzindo os impactos sobre o meio ambiente. Apesar de um aumento progressivo na utilização das nanotecnologias em todo o mundo, seu potencial ainda encontra-se reprimido no Brasil, devido ao estágio inicial de desenvolvimento. Portanto, as informações geradas a partir da análise e prospecção da percepção da comunidade científica atuante nas áreas correlatas da nanotecnologia podem auxiliar a formulação de políticas e regulamentações permitindo que os legisladores e formuladores de políticas públicas versem adequadamente sobre o tema.
650 $aNanotechnology
653 $aIndicadores de impacto
653 $aMétodo de avaliação de impactos
653 $aNanotecnologia
700 1 $aASSIS, O. B. G. de
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Registro original: |
Embrapa Meio Ambiente (CNPMA) |
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Registro Completo
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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
24/03/2020 |
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Data da última atualização: |
25/03/2020 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
C - 0 |
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Autoria: |
CARVALHO, T. A. de; PUGA, A. P.; PIRES, A. M. M.; LIGO, M. A. V.; ANDRADE, C. A. de. |
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Afiliação: |
THAÍS ALVES DE CARVALHO, FATEC; ALINE PEREGRINA PUGA, FAPESP; ADRIANA MARLENE MORENO PIRES, CNPMA; MARCOS ANTONIO VIEIRA LIGO, CNPMA; CRISTIANO ALBERTO DE ANDRADE, CNPMA. |
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Título: |
Residual effect of nitrogen fertilizers formulated with biochar. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
Horticulture International Journal, v. 3, n. 6, p. 315-318, 2019. |
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DOI: |
https://doi.org/10.15406/hij.2019.03.00147 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: Biochar-based nitrogen fertilizers provide productivity and efficiency of nitrogen use gains, but knowledge is scarce about the residual effect for subsequent crops. We evaluated the residual effect of biochar-based nitrogen fertilizers formulated with urea and charcoal fines residues from the coal manufacturing process for the supply of the Brazilian steel park. The treatments tested were related to the residual effect of 80 kg Nha-1 applied via side dressing in an experiment with corn cultivation under field conditions. After corn harvesting, soil samples from the 0-15 cm layer were collected from each experimental plot, respecting the treatments represented by the following sources of N, besides the control: ammonium nitrate, urea and three biochar-based fertilizers r (F51/10, F40/17, and F29/20). The soil was placed in pots (3L) and fertilized with macronutrients (except N) and micronutrients. The test plant was black oats (Avena strigosa Schreb) and three shoot cuts of the plants were performed during 84 days of experimentation. The initial levels of inorganic N in soil, dry mass produced (shoot and root) and N content absorbed by black oats were analyzed.The initial concentrations of inorganic N in the soil were similar among nitrogen sources. Some highlight is the higher NO3- concentration for ammonium nitrate, as a result of the low efficiency of N use by corn in the field stage. Plant dry mass and N content confirmed the greatest residual effect for ammonium nitrate, for the above reason, combined with zero loss of NH3 in the field. The residual effect of F51/10 (biochar-based nitrogen fertilizer with 51% biochar and 10% N) was higher than that observed for urea when considering the N content absorbed by oats. The superiority of the F51/10 was credited to the slower N release of this fertilizer, as the losses of NH3 from biochar-based fertilizers were as large or greater than determined for urea.Biochar-based nitrogen fertilizer formulated with urea has a longer residual effect compared to the exclusive application of urea and this effect is related to the slow N release, which demonstrates the potential of this technology in the formulation of enhanced-efficiencyN fertilizers. MenosAbstract: Biochar-based nitrogen fertilizers provide productivity and efficiency of nitrogen use gains, but knowledge is scarce about the residual effect for subsequent crops. We evaluated the residual effect of biochar-based nitrogen fertilizers formulated with urea and charcoal fines residues from the coal manufacturing process for the supply of the Brazilian steel park. The treatments tested were related to the residual effect of 80 kg Nha-1 applied via side dressing in an experiment with corn cultivation under field conditions. After corn harvesting, soil samples from the 0-15 cm layer were collected from each experimental plot, respecting the treatments represented by the following sources of N, besides the control: ammonium nitrate, urea and three biochar-based fertilizers r (F51/10, F40/17, and F29/20). The soil was placed in pots (3L) and fertilized with macronutrients (except N) and micronutrients. The test plant was black oats (Avena strigosa Schreb) and three shoot cuts of the plants were performed during 84 days of experimentation. The initial levels of inorganic N in soil, dry mass produced (shoot and root) and N content absorbed by black oats were analyzed.The initial concentrations of inorganic N in the soil were similar among nitrogen sources. Some highlight is the higher NO3- concentration for ammonium nitrate, as a result of the low efficiency of N use by corn in the field stage. Plant dry mass and N content confirmed the greatest residual effect for ammoni... Mostrar Tudo |
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Palavras-Chave: |
Biochar-based fertilizer; Black oat; Enhanced-efficiency fertilizer. |
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Thesagro: |
Fertilidade do Solo; Uréia. |
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Thesaurus NAL: |
Biochar; Soil fertility; Urea. |
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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/211987/1/Pires-residual-effect-2019.pdf
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Marc: |
LEADER 03054naa a2200277 a 4500
001 2121343
005 2020-03-25
008 2019 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.15406/hij.2019.03.00147$2DOI
100 1 $aCARVALHO, T. A. de
245 $aResidual effect of nitrogen fertilizers formulated with biochar.$h[electronic resource]
260 $c2019
520 $aAbstract: Biochar-based nitrogen fertilizers provide productivity and efficiency of nitrogen use gains, but knowledge is scarce about the residual effect for subsequent crops. We evaluated the residual effect of biochar-based nitrogen fertilizers formulated with urea and charcoal fines residues from the coal manufacturing process for the supply of the Brazilian steel park. The treatments tested were related to the residual effect of 80 kg Nha-1 applied via side dressing in an experiment with corn cultivation under field conditions. After corn harvesting, soil samples from the 0-15 cm layer were collected from each experimental plot, respecting the treatments represented by the following sources of N, besides the control: ammonium nitrate, urea and three biochar-based fertilizers r (F51/10, F40/17, and F29/20). The soil was placed in pots (3L) and fertilized with macronutrients (except N) and micronutrients. The test plant was black oats (Avena strigosa Schreb) and three shoot cuts of the plants were performed during 84 days of experimentation. The initial levels of inorganic N in soil, dry mass produced (shoot and root) and N content absorbed by black oats were analyzed.The initial concentrations of inorganic N in the soil were similar among nitrogen sources. Some highlight is the higher NO3- concentration for ammonium nitrate, as a result of the low efficiency of N use by corn in the field stage. Plant dry mass and N content confirmed the greatest residual effect for ammonium nitrate, for the above reason, combined with zero loss of NH3 in the field. The residual effect of F51/10 (biochar-based nitrogen fertilizer with 51% biochar and 10% N) was higher than that observed for urea when considering the N content absorbed by oats. The superiority of the F51/10 was credited to the slower N release of this fertilizer, as the losses of NH3 from biochar-based fertilizers were as large or greater than determined for urea.Biochar-based nitrogen fertilizer formulated with urea has a longer residual effect compared to the exclusive application of urea and this effect is related to the slow N release, which demonstrates the potential of this technology in the formulation of enhanced-efficiencyN fertilizers.
650 $aBiochar
650 $aSoil fertility
650 $aUrea
650 $aFertilidade do Solo
650 $aUréia
653 $aBiochar-based fertilizer
653 $aBlack oat
653 $aEnhanced-efficiency fertilizer
700 1 $aPUGA, A. P.
700 1 $aPIRES, A. M. M.
700 1 $aLIGO, M. A. V.
700 1 $aANDRADE, C. A. de
773 $tHorticulture International Journal$gv. 3, n. 6, p. 315-318, 2019.
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