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 | Acesso ao texto completo restrito à biblioteca da Embrapa Solos. Para informações adicionais entre em contato com cnps.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Solos. |
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Data corrente: |
19/07/2011 |
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Data da última atualização: |
08/10/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
BAPTISTA-FILHO, M.; RITER, H. G.; SILVA, M. G. da; LUNA, F. J.; WERNECK, C. G.; RECH, I.; POLIDORO, J. C.; MONTE, M. B. M.; SOUZA-BARROS, F.; MIKLOS, A.; VARGAS, H. |
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Afiliação: |
MILTON BAPTISTA-FILHO, UENF; HEITOR GONÇALVES RITER, UENF; MARCELO GOMES DA SILVA, UENF; FERNANDO J. LUNA, UENF; CARLOS GUARINO WERNECK, Bolsista Embrapa Solos; IONÁ RECH, Estagiária Embrapa Solos; JOSE CARLOS POLIDORO, CNPS; MARISA BEZERRA MELLO MONTE, Centro de Tecnologia Mineral; FERNANDO SOUZA-BARROS, UFRJ; ANDRAS MIKLOS, Fraunhofer Institut für Bauphysik; HELION VARGAS, UENF. |
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Título: |
Ammonia traces detection based on photoacoustic spectroscopy for evaluating ammonia volatization from natural zeolites at typical crop field temperature. |
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Ano de publicação: |
2011 |
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Fonte/Imprenta: |
Sensors and Actuators B: chemical, v. 158, n. 1, p. 241-245, Nov. 2011. |
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DOI: |
https://doi.org/10.1016/j.snb.2011.06.012 |
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Idioma: |
Inglês |
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Conteúdo: |
A Brazilian sedimentary zeolite-containing microporous material was characterized by determining its physical and chemical properties (surface area, pore volume, dinitrogen and ammonia desorption rates, oxide composition, and acid site characterization), and compared with two commercial natural zeolites. The characterization of these materials was performed using N2 adsorption, X-ray fluorescence spectroscopy and temperature programmed desorption (TPD) techniques. Using photoacoustic spectroscopy, the performance of these microporous materials in the adsorption and delayed desorption of nitrogen-containing fertilizers was studied by monitoring the ammonia emission rate after their treatment with ammonium sulfate. Ammonia desorption curves were recorded under 30 °C and 60 °C, aiming to reproduce typical Brazilian cropfield temperature conditions. |
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Palavras-Chave: |
Natural zeolite. |
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Thesaurus Nal: |
Ammonia; Ammonium sulfate; Fertilizers; Ion exchange; Photoacoustic spectroscopy. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 01883naa a2200325 a 4500
001 1896307
005 2021-10-08
008 2011 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.snb.2011.06.012$2DOI
100 1 $aBAPTISTA-FILHO, M.
245 $aAmmonia traces detection based on photoacoustic spectroscopy for evaluating ammonia volatization from natural zeolites at typical crop field temperature.$h[electronic resource]
260 $c2011
520 $aA Brazilian sedimentary zeolite-containing microporous material was characterized by determining its physical and chemical properties (surface area, pore volume, dinitrogen and ammonia desorption rates, oxide composition, and acid site characterization), and compared with two commercial natural zeolites. The characterization of these materials was performed using N2 adsorption, X-ray fluorescence spectroscopy and temperature programmed desorption (TPD) techniques. Using photoacoustic spectroscopy, the performance of these microporous materials in the adsorption and delayed desorption of nitrogen-containing fertilizers was studied by monitoring the ammonia emission rate after their treatment with ammonium sulfate. Ammonia desorption curves were recorded under 30 °C and 60 °C, aiming to reproduce typical Brazilian cropfield temperature conditions.
650 $aAmmonia
650 $aAmmonium sulfate
650 $aFertilizers
650 $aIon exchange
650 $aPhotoacoustic spectroscopy
653 $aNatural zeolite
700 1 $aRITER, H. G.
700 1 $aSILVA, M. G. da
700 1 $aLUNA, F. J.
700 1 $aWERNECK, C. G.
700 1 $aRECH, I.
700 1 $aPOLIDORO, J. C.
700 1 $aMONTE, M. B. M.
700 1 $aSOUZA-BARROS, F.
700 1 $aMIKLOS, A.
700 1 $aVARGAS, H.
773 $tSensors and Actuators B: chemical$gv. 158, n. 1, p. 241-245, Nov. 2011.
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Registro original: |
Embrapa Solos (CNPS) |
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Registro Completo
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Biblioteca(s): |
Embrapa Solos. |
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Data corrente: |
22/02/2022 |
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Data da última atualização: |
24/02/2022 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
VASQUES, G. de M.; RODRIGUES, H. M.; TAVARES, S. R. de L.; HERNANI, L. C.; OLIVEIRA, R. P. de. |
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Afiliação: |
GUSTAVO DE MATTOS VASQUES, CNPS; HUGO MACHADO RODRIGUES, UFRRJ; SILVIO ROBERTO DE LUCENA TAVARES, CNPS; LUIS CARLOS HERNANI, CNPS; RONALDO PEREIRA DE OLIVEIRA, CNPS. |
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Título: |
An optimized sample for assessing soil property variations across the field and within management zones efficiently. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
In: PEDOMETRICS BRAZIL, 2., 2021, Rio de Janeiro. Annals [...]. Rio de Janeiro: Embrapa Solos, 2022. Não paginado. Evento online. |
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Idioma: |
Inglês |
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Conteúdo: |
An optimized sampling design to assess soil property variation across the field and within management zones is proposed and validated in a 72-ha crop field in southeastern Brazil. An optimized sample (18 sites) was derived by spatial simulated annealing from proximal sensor covariates. Soil properties were measured at 0-10 cm and validated against those measured at 72 sites on a regular grid. The optimized and regular grid samples had equal global spatial trend models and means for soil clay, pH and exchangeable Ca, Mg and K, and different ones for organic C and available P. Within zones, equal means between sampling designs were found for all soil properties in the ?North? zone, and for most properties in the other two zones. Soil property correlations against proximal sensor variables were honored by the optimized samples in most cases, both globally and within zones. The optimized soil sample reduces costs while keeping most soil information for guiding management decisions. |
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Palavras-Chave: |
Proximal soil sensing; Spatial simulated annealing; Spatial trends. |
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Thesagro: |
Agricultura de Precisão; Sensoriamento Remoto. |
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Thesaurus NAL: |
Precision agriculture; Remote sensing. |
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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/231718/1/An-optimized-sample-for-assessing-soil-property-variations-2022.pdf
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Marc: |
LEADER 01870nam a2200241 a 4500
001 2140307
005 2022-02-24
008 2022 bl uuuu u00u1 u #d
100 1 $aVASQUES, G. de M.
245 $aAn optimized sample for assessing soil property variations across the field and within management zones efficiently.$h[electronic resource]
260 $aIn: PEDOMETRICS BRAZIL, 2., 2021, Rio de Janeiro. Annals [...]. Rio de Janeiro: Embrapa Solos, 2022. Não paginado. Evento online.$c2022
520 $aAn optimized sampling design to assess soil property variation across the field and within management zones is proposed and validated in a 72-ha crop field in southeastern Brazil. An optimized sample (18 sites) was derived by spatial simulated annealing from proximal sensor covariates. Soil properties were measured at 0-10 cm and validated against those measured at 72 sites on a regular grid. The optimized and regular grid samples had equal global spatial trend models and means for soil clay, pH and exchangeable Ca, Mg and K, and different ones for organic C and available P. Within zones, equal means between sampling designs were found for all soil properties in the ?North? zone, and for most properties in the other two zones. Soil property correlations against proximal sensor variables were honored by the optimized samples in most cases, both globally and within zones. The optimized soil sample reduces costs while keeping most soil information for guiding management decisions.
650 $aPrecision agriculture
650 $aRemote sensing
650 $aAgricultura de Precisão
650 $aSensoriamento Remoto
653 $aProximal soil sensing
653 $aSpatial simulated annealing
653 $aSpatial trends
700 1 $aRODRIGUES, H. M.
700 1 $aTAVARES, S. R. de L.
700 1 $aHERNANI, L. C.
700 1 $aOLIVEIRA, R. P. de
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