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Registros recuperados : 40 | |
5. | | KRUCHELSKI, S.; PORFIRIO-DA-SILVA, V.; PORTUGAL, T. B.; TRICHES, G. P.; MORAES, A. de. Estimativa de sequestro de carbono por árvores em um sistema integrado de produção agropecuária em área de proteção ambiental no subtrópico brasileiro. Pesquisa Florestal Brasileira, Colombo, v. 39, (nesp), e201902043, 2019. p. 499. Edição especial dos resumos do IUFRO World Congress, 25., 2019, Curitiba. Biblioteca(s): Embrapa Florestas. |
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8. | | REIS, E. F. dos; PELISSARI, A.; MORAES, A. de; OLIVEIRA, E. B. de; RUARO, L. Podridão vermelha da raiz da soja em cultivos com diferentes sistemas de manejo e coberturas do solo. Pesquisa Agropecuária Brasileira, Brasília, v. 47, n. 4, p. 528-533, abr. 2012. Biblioteca(s): Embrapa Florestas; Embrapa Unidades Centrais. |
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10. | | PERGHER, M.; PIVA, J. T.; PORFIRIO-DA-SILVA, V.; MORAES, A. de; DIECKOW, J.; PONTES, L. da S. Atributos físicos de solo manejado em sistemas integrados de produção. In: REUNIÃO PARANAENSE DE CIÊNCIA DO SOLO, 2., 2011, Curitiba. Resumos. Curitiba: Universidade Federal do Paraná; Sociedade Paranaense de Ciência do Solo, 2011. p. 50. Biblioteca(s): Embrapa Florestas. |
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12. | | TRICHES, G. P.; MORAES, A. de; PORFIRIO-DA-SILVA, V.; LANG, C. R.; LUSTOSA, S. B. C.; BONATTO, R. A. Damage caused by cattle to Eucalyptus benthamii trees in pruned and unpruned silvopastoral systems. Pesquisa Agropecuária Brasileira, v. 55, e01275, 2020. Título em português: Danos causados por bovinos a Eucalyptus benthamii, com ou sem desrama, em sistemas silvipastoris. Biblioteca(s): Embrapa Florestas; Embrapa Unidades Centrais. |
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13. | | KRUCHELSKI, S.; TRAUTENMULLER, J. W.; DEISS, L.; TREVISAN, R.; CUBBAGE, F.; PORFIRIO-DA-SILVA, V.; MORAES, A. de. Eucalyptus benthamii Maiden et Cambage growth and wood density in integrated crop-livestock systems. Agroforestry Systems, v. 95, n. 8, p. 1577-1588, Dec. 2021. Biblioteca(s): Embrapa Florestas. |
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15. | | DEISS, L.; MORAES, A. de; PELISSARI, A.; SKORA NETO, F.; PORFIRIO-DA-SILVA, V.; ANDREOLLA, V. R. M. Oat growth under different nitrogen doses in an eucalyptus alley cropping system in subtropical Brazil. Revista Ciência Agronômica, v. 45, n. 5esp., p. 1014-1023, 2014. Biblioteca(s): Embrapa Florestas. |
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16. | | DEISS, L.; MORAES, A. de; PELISSARI, A.; SKORA NETO, F.; OLIVEIRA, E. B. de; PORFIRIO-DA-SILVA, V. Oat tillering and tiller traits under different nitrogen levels in an eucalyptus agroforestry system in Subtropical Brazil. Ciência Rural, Santa Maria, RS, v. 44, n. 1, p. 71-78, jan. 2014. Biblioteca(s): Embrapa Florestas. |
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17. | | DEISS, L.; MORAES, A. de; PELISSARI, A.; SKORA NETO, F.; OLIVEIRA, E. B. de; PORFIRIO-DA-SILVA, V. Oat tillering under nitrogen levels in eucalyptus alley cropping system in southern Brazil. In: INTERNATIONAL SYMPOSIUM ON INTEGRATED CROP-LIVESTOCK SYSTEMS, 2., 2012, Porto Alegre. Invited papers; Offered papers. [S.l.]: INRA, 2012. 3 p. Biblioteca(s): Embrapa Florestas. |
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18. | | CARVALHO, P. C. de F.; BARROS, R. S.; PONTES, L. da S.; PORFIRIO-DA-SILVA, V.; MORAES, A. de. Produção de bovinos em sistemas integrados de produção agrícola e pecuária. In: ENCONTRO SOBRE PRODUÇÃO AGROPECUÁRIA SUSTENTÁVEL, 2., 2013, Votuporanga. Anais. Campinas: IAC, 2013. p. 1-13. (Documentos IAC, n. 111). Biblioteca(s): Embrapa Florestas. |
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19. | | ASSMANN, A. L.; PELISSARI, A.; MORAES, A. de; ASSMANN, T. S.; OLIVEIRA, E. B. de; SANDINI, I. Produção de gado de corte e acúmulo de matéria seca em sistemas de integração lavoura: pecuária em presença e ausência de trevo branco e nitrogênio. Revista Brasileira de Zootecnia, Viçosa, v. 33, n. 1, p. 37-44, 2004. Biblioteca(s): Embrapa Florestas. |
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20. | | PORFIRIO-DA-SILVA, V.; MORAES, A. de; MOLETTA, J. L.; PELISSARI, A.; DIECKOW, J.; OLIVEIRA, E. B. de. Produtividade do milho em um sistema silviagrícola nos Campos Gerais, PR. Scientia Agraria, Curitiba, v. 16, n. 1, p. 27-32, jan./fev. 2015. Biblioteca(s): Embrapa Florestas. |
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Registros recuperados : 40 | |
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Registro Completo
Biblioteca(s): |
Embrapa Florestas. |
Data corrente: |
10/11/2014 |
Data da última atualização: |
10/11/2014 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 1 |
Autoria: |
SORDI, A.; DIECKOW, J.; BAYER, C.; ALBUQUERQUE, M. A.; PIVA, J. T.; ZANATTA, J. A.; TOMAZI, M.; ROSA, C. M. da; MORAES, A. de. |
Afiliação: |
ANDRÉ SORDI, Programa de Pós-Graduação em Ciência do Solo, UFPR; Jeferson Dieckow, UFPR; Cimélio Bayer, UFRGS; MÁRCIO AMARAL ALBUQUERQUE, Programa de pós-graduação em Ciência do Solo, UFPR; JONATAS THIAGO PIVA, UFSC; JOSILEIA ACORDI ZANATTA, CNPF; Michely Tomazi, UFRGS; CARLA MACHADO DA ROSA, UFRGS; Anibal de Moraes, UFPR. |
Título: |
Nitrous oxide emission factors for urine and dung patchesin a subtropical Brazilian pastureland. |
Ano de publicação: |
2014 |
Fonte/Imprenta: |
Agriculture, Ecosystems and Environment, v. 190, p. 94-103, 2014. |
Idioma: |
Inglês |
Conteúdo: |
tCattle urine and dung (faeces) patches are nitrous oxide (N2O) sources in pasturelands with impactsin the global N2O budget, but specific information about those emissions are still missing for Braziliansubtropical and tropical regions. We conducted a sequence of 3 field-trials (summer, winter and spring,90 days each) to evaluate the N2O emission and emission factor (EF) after the deposition of 3 volumes ofcattle urine or 3 weights of dung (½, 1 and 1½ time the mean urination volume or defecation weight ofFriesian cows) on a free-drained Cambisol of a subtropical pastureland of Brazil. The N2O emission peaks(3198 g N2O-N m−2h−1after urine in summer was the highest) occurred on average 17 ± 9 days afterapplication (DAA), both for urine and dung, and dropped to the background levels 41 ± 10 DAA of urineand 49 ± 10 DAA of dung. The highest contents of NH4+-N in soil (200?250 mg N kg−1) occurred one dayafter urine application and 10?14 days later for dung (100?200 mg N kg−1). Nitrate peaks occurred from23 to 26 DAA in urine patches (∼40?50 mg N kg−1) and 19?50 DAA in dung patches (∼40?50 mg N kg−1).The N2O emission peaks for urine coincided with soil NH4+-N peak in winter but with soil NO3−-N peakin spring. For dung, the emission peak seemed to be more associated with soil NO3−-N than to NH4+-N,either in winter or spring (inorganic-N was not assessed in summer). It was not possible to concludewhether nitrification or denitrification was the dominant process in N2O production, but it seemed thatboth played relevant roles. The EF for urine, averaged across the seasons, diminished with increments inurine volume, from 0.33% in ½ volume to 0.19% in 1½ volume, possibly because urine percolated deeperinto the soil and proportionally less N remained available for N2O production in the top layer. The EFfor dung was 0.19%, 0.12% and 0.14% for ½, 1 and 1½ weight, respectively, showing no clear trend withincrement in dung weight. The lowest EFs for urine and dung occurred in winter, possibly because oflowest temperatures and soil water-filled pore space. The average EF for dung (0.15%) was lower thanthat of urine (0.26%), because urea-N of urine is more readily available for the hydrolysis than organicN forms of dung. This result suggests that these two excreta should be addressed separately in nationalgreenhouse gases inventories or communications. Our results suggest that the default 2% EF proposed inIPCC Guidelines for cattle excreta are overestimated for subtropical Brazil. MenostCattle urine and dung (faeces) patches are nitrous oxide (N2O) sources in pasturelands with impactsin the global N2O budget, but specific information about those emissions are still missing for Braziliansubtropical and tropical regions. We conducted a sequence of 3 field-trials (summer, winter and spring,90 days each) to evaluate the N2O emission and emission factor (EF) after the deposition of 3 volumes ofcattle urine or 3 weights of dung (½, 1 and 1½ time the mean urination volume or defecation weight ofFriesian cows) on a free-drained Cambisol of a subtropical pastureland of Brazil. The N2O emission peaks(3198 g N2O-N m−2h−1after urine in summer was the highest) occurred on average 17 ± 9 days afterapplication (DAA), both for urine and dung, and dropped to the background levels 41 ± 10 DAA of urineand 49 ± 10 DAA of dung. The highest contents of NH4+-N in soil (200?250 mg N kg−1) occurred one dayafter urine application and 10?14 days later for dung (100?200 mg N kg−1). Nitrate peaks occurred from23 to 26 DAA in urine patches (∼40?50 mg N kg−1) and 19?50 DAA in dung patches (∼40?50 mg N kg−1).The N2O emission peaks for urine coincided with soil NH4+-N peak in winter but with soil NO3−-N peakin spring. For dung, the emission peak seemed to be more associated with soil NO3−-N than to NH4+-N,either in winter or spring (inorganic-N was not assessed in summer). It was not possible to concludewhether nitrification or d... Mostrar Tudo |
Palavras-Chave: |
Fator de emissão; Óxido nitroso; Volume de urina. |
Thesagro: |
Gado; Nitrato; Pastagem. |
Categoria do assunto: |
-- |
Marc: |
LEADER 03383naa a2200289 a 4500 001 1999594 005 2014-11-10 008 2014 bl uuuu u00u1 u #d 100 1 $aSORDI, A. 245 $aNitrous oxide emission factors for urine and dung patchesin a subtropical Brazilian pastureland.$h[electronic resource] 260 $c2014 520 $atCattle urine and dung (faeces) patches are nitrous oxide (N2O) sources in pasturelands with impactsin the global N2O budget, but specific information about those emissions are still missing for Braziliansubtropical and tropical regions. We conducted a sequence of 3 field-trials (summer, winter and spring,90 days each) to evaluate the N2O emission and emission factor (EF) after the deposition of 3 volumes ofcattle urine or 3 weights of dung (½, 1 and 1½ time the mean urination volume or defecation weight ofFriesian cows) on a free-drained Cambisol of a subtropical pastureland of Brazil. The N2O emission peaks(3198 g N2O-N m−2h−1after urine in summer was the highest) occurred on average 17 ± 9 days afterapplication (DAA), both for urine and dung, and dropped to the background levels 41 ± 10 DAA of urineand 49 ± 10 DAA of dung. The highest contents of NH4+-N in soil (200?250 mg N kg−1) occurred one dayafter urine application and 10?14 days later for dung (100?200 mg N kg−1). Nitrate peaks occurred from23 to 26 DAA in urine patches (∼40?50 mg N kg−1) and 19?50 DAA in dung patches (∼40?50 mg N kg−1).The N2O emission peaks for urine coincided with soil NH4+-N peak in winter but with soil NO3−-N peakin spring. For dung, the emission peak seemed to be more associated with soil NO3−-N than to NH4+-N,either in winter or spring (inorganic-N was not assessed in summer). It was not possible to concludewhether nitrification or denitrification was the dominant process in N2O production, but it seemed thatboth played relevant roles. The EF for urine, averaged across the seasons, diminished with increments inurine volume, from 0.33% in ½ volume to 0.19% in 1½ volume, possibly because urine percolated deeperinto the soil and proportionally less N remained available for N2O production in the top layer. The EFfor dung was 0.19%, 0.12% and 0.14% for ½, 1 and 1½ weight, respectively, showing no clear trend withincrement in dung weight. The lowest EFs for urine and dung occurred in winter, possibly because oflowest temperatures and soil water-filled pore space. The average EF for dung (0.15%) was lower thanthat of urine (0.26%), because urea-N of urine is more readily available for the hydrolysis than organicN forms of dung. This result suggests that these two excreta should be addressed separately in nationalgreenhouse gases inventories or communications. Our results suggest that the default 2% EF proposed inIPCC Guidelines for cattle excreta are overestimated for subtropical Brazil. 650 $aGado 650 $aNitrato 650 $aPastagem 653 $aFator de emissão 653 $aÓxido nitroso 653 $aVolume de urina 700 1 $aDIECKOW, J. 700 1 $aBAYER, C. 700 1 $aALBUQUERQUE, M. A. 700 1 $aPIVA, J. T. 700 1 $aZANATTA, J. A. 700 1 $aTOMAZI, M. 700 1 $aROSA, C. M. da 700 1 $aMORAES, A. de 773 $tAgriculture, Ecosystems and Environment$gv. 190, p. 94-103, 2014.
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