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Registro Completo |
Biblioteca(s): |
Embrapa Solos. |
Data corrente: |
19/07/2011 |
Data da última atualização: |
10/06/2024 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
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. |
Afiliação: |
MILTON BAPTISTA-FILHO, UENF; HEITOR GONÇALVES RITER, UENF; MARCELO GOMES DA SILVA, UENF; FERNANDO J. LUNA, UENF; CARLOS GUARINO WERNECK; IONÁ RECH; 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. |
Título: |
Ammonia traces detection based on photoacoustic spectroscopy for evaluating ammonia volatization from natural zeolites at typical crop field temperature. |
Ano de publicação: |
2011 |
Fonte/Imprenta: |
Sensors and Actuators B: chemical, v. 158, n. 1, p. 241-245, Nov. 2011. |
DOI: |
https://doi.org/10.1016/j.snb.2011.06.012 |
Idioma: |
Inglês |
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. |
Palavras-Chave: |
Natural zeolite. |
Thesaurus Nal: |
Ammonia; Ammonium sulfate; Fertilizers; Ion exchange; Photoacoustic spectroscopy. |
Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
Marc: |
LEADER 01883naa a2200325 a 4500 001 1896307 005 2024-06-10 008 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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Biblioteca(s): |
Embrapa Florestas; Embrapa Gado de Leite; Embrapa Pecuária Sudeste. |
Data corrente: |
11/10/2016 |
Data da última atualização: |
09/02/2024 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 2 |
Autoria: |
NICODEMO, M. L. F.; MULLER, M. D.; PORFIRIO-DA-SILVA, V.; CARPANEZZI, A. A.; PEZZOPANE, J. R. M.; BARIONI JUNIOR, W. |
Afiliação: |
MARCELO DIAS MULLER, CNPGL. |
Título: |
Growth of native trees in two agroforestry systems. |
Ano de publicação: |
2016 |
Fonte/Imprenta: |
Revista Árvore, Viçosa, v. 40, n. 4, p. 639-648, 2016. |
DOI: |
http://dx.doi.org/10.1590/0100-67622016000400007 |
Idioma: |
Inglês Português |
Conteúdo: |
Agroforestry systems with eucalyptus prevail in Central and Southeast Brazil, and little information is available about systems using native trees. The aim of the present study was to evaluate the development of seven native tree species grown under two agroforestry systems. The experiment was conducted starting in 2007 in 12-hectare area in the municipality of São Carlos, São Paulo state, Brazil. The tree species planted in the two systems (a silvopastoral system and an agrisilvicultural system) were: 'capixingui' (Croton floribundus) and 'mutambo' (Guazuma ulmifolia) (tutors), 'jequitibá-branco' (Cariniana estrellensis), 'canafistula' (Peltophorum dubium) and 'ipê felpudo' (Zeyheria tuberculosa) (timber trees), and 'angico-branco' (Anadenanthera colubrina) and 'pau-jacaré' (Piptadenia gonoacantha) (N-fixing trees). Data were collected for 48 months. The results show differences among tree development, which was evaluated as growth in height and diameter, as well as sensitivity to insect and disease damage. The overall results show that the agrisilvicultural system allowed better tree development. The species with best performance in the two systems were capixingui, mutambo and canafístula. Ipê-felpudo and jequitibá-branco showed the worst results. The high variability among individuals of the same species indicates the possibility of high production advances with selective breeding of these species. |
Palavras-Chave: |
Agriforestry; Floresta Estacional Semidecídua; ILPF; Sistemas agroflorestais; Sistemas de produção. |
Thesagro: |
Sistema de produção. |
Categoria do assunto: |
-- K Ciência Florestal e Produtos de Origem Vegetal |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/198286/1/2016-Leonardo-RA-Growth.pdf
|
Marc: |
LEADER 02250naa a2200265 a 4500 001 2064572 005 2024-02-09 008 2016 bl uuuu u00u1 u #d 024 7 $ahttp://dx.doi.org/10.1590/0100-67622016000400007$2DOI 100 1 $aNICODEMO, M. L. F. 245 $aGrowth of native trees in two agroforestry systems.$h[electronic resource] 260 $c2016 520 $aAgroforestry systems with eucalyptus prevail in Central and Southeast Brazil, and little information is available about systems using native trees. The aim of the present study was to evaluate the development of seven native tree species grown under two agroforestry systems. The experiment was conducted starting in 2007 in 12-hectare area in the municipality of São Carlos, São Paulo state, Brazil. The tree species planted in the two systems (a silvopastoral system and an agrisilvicultural system) were: 'capixingui' (Croton floribundus) and 'mutambo' (Guazuma ulmifolia) (tutors), 'jequitibá-branco' (Cariniana estrellensis), 'canafistula' (Peltophorum dubium) and 'ipê felpudo' (Zeyheria tuberculosa) (timber trees), and 'angico-branco' (Anadenanthera colubrina) and 'pau-jacaré' (Piptadenia gonoacantha) (N-fixing trees). Data were collected for 48 months. The results show differences among tree development, which was evaluated as growth in height and diameter, as well as sensitivity to insect and disease damage. The overall results show that the agrisilvicultural system allowed better tree development. The species with best performance in the two systems were capixingui, mutambo and canafístula. Ipê-felpudo and jequitibá-branco showed the worst results. The high variability among individuals of the same species indicates the possibility of high production advances with selective breeding of these species. 650 $aSistema de produção 653 $aAgriforestry 653 $aFloresta Estacional Semidecídua 653 $aILPF 653 $aSistemas agroflorestais 653 $aSistemas de produção 700 1 $aMULLER, M. D. 700 1 $aPORFIRIO-DA-SILVA, V. 700 1 $aCARPANEZZI, A. A. 700 1 $aPEZZOPANE, J. R. M. 700 1 $aBARIONI JUNIOR, W. 773 $tRevista Árvore, Viçosa$gv. 40, n. 4, p. 639-648, 2016.
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