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1. | | BENNETT, A. C.; SOUSA, T. R. de; MONTEAGUDO-MENDOZA , A.; ESQUIVEL-MUELBERT, A.; MORANDI, P. S.; SOUZA, F. C. de; CASTRO, W.; DUQUE, L. F.; LLAMPAZO, G. F.; SANTOS, R. M. dos; RAMOS, E.; TORRE, E. V.; ALVAREZ-DAVILA, E.; BAKER, T. R.; COSTA, F. R, C.; LEWIS, S. L.; MARIMON, B. S.; SCHIETTI, J.; BURBAN, B.; BERENGUER, E.; ARAUJO-MURAKAMI, A.; CORREA, Z. R.; LOPEZ, W.; SANTANA, F. D.; VISCARRA, L. J.; ELIAS, F.; VASQUEZ MARTINEZ, R.; MARIMON-JUNIOR, B. H.; GALBRAITH, G.; SULLIVAN, M. J. P.; EMILIO, T.; PRESTES, N. C. C. S.; BARLOW, J.; FAGUNDES, N. C. A.; OLIVEIRA, E. A. de; LOAYZA, P. A.; ALVES, L. F.; VIEIRA, S. A.; MAIA, V. A.; ARAGÃO, L. E. O. C.; ARETS, E. J. M. M.; ARROYO, L.; BÁNKI, O.; BARALOTO, C.; CAMARGO, P. B.; BARROSO, J.; SILVA, W. B. da; BONAL, D.; SANTOS, A. B. M.; BRIENEN, R. J. W.; BROWN, F.; CASTILHO, C. V. de; RIBEIRO, S. C.; MOSCOSO, V. C.; CHAVEZ, E.; COMISKEY, J. A.; VALVERDE, F. C.; CARDOZO, N. D.; MELO, L. de O.; AGUILA PASQUEL, J. del; DERROIRE, D.; DISNEY, M.; AURÉLIE DOURDAIN, M. do S.; FELDPAUSCH, T. R.; FERREIRA, J. N.; MARTINS, V. F.; GARDNER, T.; GLOOR, E.; SIBAUTY, G. G.; GUILLEN, R.; HASE, E.; HÉRAULT, B.; CORONADO, E. N. H.; HUARACA HUASCO, W.; JANOVEC, J. P.; JIMENEZ-ROJAS, E.; JOLY, C.; KALAMANDEEN, M.; KILLEEN, T. J.; FARRAPO, C. L.; LEVESLEY, A.; ROMANO, L. L.; LOPEZ GONZALEZ, G.; SANTOS, F. A. M. dos; MAGNUSSON, W. E.; MALHI, Y.; REIS, S. M. de A.; MELGAÇO, K.; CRUZ, O. A. M.; MENDOZA POLO, I.; MONTAÑEZ, T.; MOREL, J. D.; NÚÑEZ VARGAS, M. P.; ARAÚJO, R. O. de; CAMACHO, N. C. P.; GUTIERREZ, A. P.; PENNINGTON, T.; PICKAVANCE, G. C.; PIPOLY, J.; PITMAN, N. C. A.; QUESADA, C.; RAMIREZ AREVALO, F.; RAMÍREZ‐ANGULO, H.; RAMOS, R. F.; RICHARDSON, J. E.; SOUZA, C. R. de; ROOPSIND, A.; SCHWARTZ, G.; SILVA. R. C.; ESPEJO, J. S.; SILVEIRA, M.; SINGH, J.; SHAREVA, Y. S.; STEININGER, M.; STROPP, J.; TALBOT, J.; STEEGE, H. Ter; TERBORGH, J.; THOMAS, R.; VALENZUELA GAMARRA, L.; HEIJDEN, G. van den; HOUT, P, van den; ZAGT, r.; PHILLIPS, O. L. Sensitivity of South American tropical forests to an extreme climate anomaly. Nature Climate Change, v. 13, p. 967-974, 2023. Biblioteca(s): Embrapa Amazônia Oriental; Embrapa Roraima. |
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Registros recuperados : 1 | |
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Registro Completo
Biblioteca(s): |
Embrapa Solos. |
Data corrente: |
12/02/2014 |
Data da última atualização: |
31/03/2015 |
Tipo da produção científica: |
Artigo em Anais de Congresso |
Autoria: |
CASTRO, R. C. de; BENITES, V. de M.; TEIXEIRA, P. C.; OLIVEIRA, D. F. de; OLIVEIRA, L. F. de; ANJOS, M. J. dos. |
Afiliação: |
Robson C. de Castro, Instituto de Física Armando Dias Tavares; VINICIUS DE MELO BENITES, CNPS; PAULO CESAR TEIXEIRA, CNPS; Davi Ferreira de Oliveira, Instituto de Física Armando Dias Tavares; Luis Fernando de Oliveira, Instituto de Física Armando Dias Tavares; Marcelino José dos Anjos, Instituto de Física Armando Dias Tavares. |
Título: |
Analyzing the mobility in granular forms of P fertilizer in brazilians soils under laboratory conditions. |
Ano de publicação: |
2013 |
Fonte/Imprenta: |
In: INTERNATIONAL NUCLEAR ATLANTIC CONFERENCE/INAC, 2013. Recife/PE. Anais... Rio de Janeiro, RJ: Associação Brasileira de Energia Nuclear, 2013. |
Páginas: |
8p. |
Idioma: |
Português |
Conteúdo: |
Phosphorus is an essential nutrient for plant growth. Million of tones of P are applied to the soils annually. However, only a small fraction of the P applied with fertilizers is taken up by crops in the year of application, and the effectiveness of any residual P fertilizer declines with time. To improve our understanding of the mechanisms underlying this response to P in the field, we have studied the mobility of P from 3 different fertilizes: monoammonium phosphate (MAP), polymer coated monoammonium phosphate (MAPp) and Organomineral phosphate (OMP) applied on high weathered soil samples in a Petri dish experiment. Total Reflection X-Ray Fluorescence (TXRF) was used to determine the P diffusive flux at different distances (0 - 7.5, 7.5 ? 13.5, 13.5 ? 25.5 and 25.5 ? 43 mm) from granular fertilizer. TXRF analyses were performed at the X-Ray Fluorescence Beamline D09B at Brazilian National Synchrotron Light Laboratory (LNLS), in Campinas, São Paulo, using a polychromatic beam with maximum energy of 20 keV for the excitation and an Ultra-LEGe detector with resolution of 148 eV at 5.9 keV. Besides that, the detections were performed in a high vacuum chamber (2.5 x 10-5 mbar) to avoid air absorption. After a period of five weeks, the total P concentration increased in the soil sampled 7.5 to 13.5 mm from the fertilizer showing a diffusive flux of P. About 20% (considering MAP and MAPp) of the total P applied diffused out of the central soil ring. Different sources showed differences in diffusive flux of P. Soil pH also influenced diffusive flux of P showing higher flux on lower pH soils. MenosPhosphorus is an essential nutrient for plant growth. Million of tones of P are applied to the soils annually. However, only a small fraction of the P applied with fertilizers is taken up by crops in the year of application, and the effectiveness of any residual P fertilizer declines with time. To improve our understanding of the mechanisms underlying this response to P in the field, we have studied the mobility of P from 3 different fertilizes: monoammonium phosphate (MAP), polymer coated monoammonium phosphate (MAPp) and Organomineral phosphate (OMP) applied on high weathered soil samples in a Petri dish experiment. Total Reflection X-Ray Fluorescence (TXRF) was used to determine the P diffusive flux at different distances (0 - 7.5, 7.5 ? 13.5, 13.5 ? 25.5 and 25.5 ? 43 mm) from granular fertilizer. TXRF analyses were performed at the X-Ray Fluorescence Beamline D09B at Brazilian National Synchrotron Light Laboratory (LNLS), in Campinas, São Paulo, using a polychromatic beam with maximum energy of 20 keV for the excitation and an Ultra-LEGe detector with resolution of 148 eV at 5.9 keV. Besides that, the detections were performed in a high vacuum chamber (2.5 x 10-5 mbar) to avoid air absorption. After a period of five weeks, the total P concentration increased in the soil sampled 7.5 to 13.5 mm from the fertilizer showing a diffusive flux of P. About 20% (considering MAP and MAPp) of the total P applied diffused out of the central soil ring. Different sources showed diffe... Mostrar Tudo |
Thesaurus NAL: |
phosphorus. |
Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/97196/1/ANALYSING.pdf
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Marc: |
LEADER 02309nam a2200193 a 4500 001 1979670 005 2015-03-31 008 2013 bl uuuu u00u1 u #d 100 1 $aCASTRO, R. C. de 245 $aAnalyzing the mobility in granular forms of P fertilizer in brazilians soils under laboratory conditions.$h[electronic resource] 260 $aIn: INTERNATIONAL NUCLEAR ATLANTIC CONFERENCE/INAC, 2013. Recife/PE. Anais... Rio de Janeiro, RJ: Associação Brasileira de Energia Nuclear$c2013 300 $a8p. 520 $aPhosphorus is an essential nutrient for plant growth. Million of tones of P are applied to the soils annually. However, only a small fraction of the P applied with fertilizers is taken up by crops in the year of application, and the effectiveness of any residual P fertilizer declines with time. To improve our understanding of the mechanisms underlying this response to P in the field, we have studied the mobility of P from 3 different fertilizes: monoammonium phosphate (MAP), polymer coated monoammonium phosphate (MAPp) and Organomineral phosphate (OMP) applied on high weathered soil samples in a Petri dish experiment. Total Reflection X-Ray Fluorescence (TXRF) was used to determine the P diffusive flux at different distances (0 - 7.5, 7.5 ? 13.5, 13.5 ? 25.5 and 25.5 ? 43 mm) from granular fertilizer. TXRF analyses were performed at the X-Ray Fluorescence Beamline D09B at Brazilian National Synchrotron Light Laboratory (LNLS), in Campinas, São Paulo, using a polychromatic beam with maximum energy of 20 keV for the excitation and an Ultra-LEGe detector with resolution of 148 eV at 5.9 keV. Besides that, the detections were performed in a high vacuum chamber (2.5 x 10-5 mbar) to avoid air absorption. After a period of five weeks, the total P concentration increased in the soil sampled 7.5 to 13.5 mm from the fertilizer showing a diffusive flux of P. About 20% (considering MAP and MAPp) of the total P applied diffused out of the central soil ring. Different sources showed differences in diffusive flux of P. Soil pH also influenced diffusive flux of P showing higher flux on lower pH soils. 650 $aphosphorus 700 1 $aBENITES, V. de M. 700 1 $aTEIXEIRA, P. C. 700 1 $aOLIVEIRA, D. F. de 700 1 $aOLIVEIRA, L. F. de 700 1 $aANJOS, M. J. dos
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