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 | Acesso ao texto completo restrito à biblioteca da Embrapa Agrobiologia. Para informações adicionais entre em contato com cnpab.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Agrobiologia. |
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Data corrente: |
15/06/2022 |
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Data da última atualização: |
15/06/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
GUIMARÃES, B. C.; GOMES, F. de K.; HOMEM, B. G. C.; LIMA, I. B. G. de; SPASIANI, P. S.; BODDEY, R. M.; ALVES, B. J. R.; CASAGRANDE, D. R. |
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Afiliação: |
BIANCA C. GUIMARÃES, UFLA; FERNANDA DE KÁSSIA GOMES, UFMS; BRUNO G. C. HOMEM, BOLSISTA EMBRAPA AGROBIOLOGIA; ITALO BRAZ G. DE LIMA, UFLA; PAOLA P. SPASIANI, UFLA; ROBERT MICHAEL BODDEY, CNPAB; BRUNO JOSE RODRIGUES ALVES, CNPAB; DANIEL RUME CASAGRANDE, UFLA. |
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Título: |
Emissions of N2O and NH3 from cattle excreta in grass pastures fertilized with N or mixed with a forage legume. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
Nutrient Cycling in Agroecosystems, v. 122, p. 325?346, 2022. |
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ISSN: |
1385-1314 |
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DOI: |
https://doi.org/10.1007/s10705-022-10207-3 |
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Idioma: |
Inglês |
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Conteúdo: |
Pasture is the major livestock production system in Brazil, and nitrogen (N) excretion by cattle has been identified as an important source of nitrous oxide (N2O) and ammonia (NH3). This study assessed long-term N2O and NH3 emissions from cattle urine and dung deposited on three pasture systems: (1) palisadegrass (Brachiaria brizantha) monoculture without N-fertilizer (GRASS); (2) palisadegrass monoculture fertilized with 150 kg N ha?1 (GRASS?+?N); (3) palisadegrass mixed with Arachis pintoi without N-fertilizer application (GRASS?+?LEGUME). Two trials were carried out, one beginning in the dry season and the other in the rainy season. Urine N2O emission factors (EFN2O) were the lowest for the GRASS pasture (0.41% vs. 0.56 and 0.62% for the GRASS?+?N and GRASS?+?LEGUME pastures, respectively). There was a tendency of lower EFN2O in for dung from cattle grazing the GRASS?+?LEGUME pasture (0.11% vs. 0.20% for the GRASS and GRASS?+?N pastures; P?MenosPasture is the major livestock production system in Brazil, and nitrogen (N) excretion by cattle has been identified as an important source of nitrous oxide (N2O) and ammonia (NH3). This study assessed long-term N2O and NH3 emissions from cattle urine and dung deposited on three pasture systems: (1) palisadegrass (Brachiaria brizantha) monoculture without N-fertilizer (GRASS); (2) palisadegrass monoculture fertilized with 150 kg N ha?1 (GRASS?+?N); (3) palisadegrass mixed with Arachis pintoi without N-fertilizer application (GRASS?+?LEGUME). Two trials were carried out, one beginning in the dry season and the other in the rainy season. Urine N2O emission factors (EFN2O) were the lowest for the GRASS pasture (0.41% vs. 0.56 and 0.62% for the GRASS?+?N and GRASS?+?LEGUME pastures, respectively). There was a tendency of lower EFN2O in for dung from cattle grazing the GRASS?+?LEGUME pasture (0.11% vs. 0.20% for the GRASS and GRASS?+?N pastures; P?Mostrar Tudo |
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Palavras-Chave: |
Warm season legum. |
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Thesagro: |
Brachiaria. |
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Thesaurus Nal: |
Arachis pintoi; Greenhouse gas emissions; Tropical pastures. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 02580naa a2200289 a 4500
001 2144122
005 2022-06-15
008 2022 bl uuuu u00u1 u #d
022 $a1385-1314
024 7 $ahttps://doi.org/10.1007/s10705-022-10207-3$2DOI
100 1 $aGUIMARÃES, B. C.
245 $aEmissions of N2O and NH3 from cattle excreta in grass pastures fertilized with N or mixed with a forage legume.$h[electronic resource]
260 $c2022
520 $aPasture is the major livestock production system in Brazil, and nitrogen (N) excretion by cattle has been identified as an important source of nitrous oxide (N2O) and ammonia (NH3). This study assessed long-term N2O and NH3 emissions from cattle urine and dung deposited on three pasture systems: (1) palisadegrass (Brachiaria brizantha) monoculture without N-fertilizer (GRASS); (2) palisadegrass monoculture fertilized with 150 kg N ha?1 (GRASS?+?N); (3) palisadegrass mixed with Arachis pintoi without N-fertilizer application (GRASS?+?LEGUME). Two trials were carried out, one beginning in the dry season and the other in the rainy season. Urine N2O emission factors (EFN2O) were the lowest for the GRASS pasture (0.41% vs. 0.56 and 0.62% for the GRASS?+?N and GRASS?+?LEGUME pastures, respectively). There was a tendency of lower EFN2O in for dung from cattle grazing the GRASS?+?LEGUME pasture (0.11% vs. 0.20% for the GRASS and GRASS?+?N pastures; P?<?0.10). Excreta-N lost by NH3 volatilization (EFNH3) was highest for urine under GRASS?+?N pasture (12.6% vs. 5.9 and 4.7% for the GRASS?+?LEGUME and GRASS pastures, respectively). These figures are within the ranges reported in the IPCC 2019 guidelines but consistently in the lower range, probably due to the tropical climate. The lowest urine EFN2O estimated for the GRASS pasture showed that N fertilization increased N2O emissions from urine patches. The lower EFN2O for dung from GRASS?+?LEGUME pastures and the emissions avoided associated with N fertilizer use indicate that the mixed grass/legume pasture is a strategy to mitigate greenhouse gas emissions when pasture intensification requires N addition.
650 $aArachis pintoi
650 $aGreenhouse gas emissions
650 $aTropical pastures
650 $aBrachiaria
653 $aWarm season legum
700 1 $aGOMES, F. de K.
700 1 $aHOMEM, B. G. C.
700 1 $aLIMA, I. B. G. de
700 1 $aSPASIANI, P. S.
700 1 $aBODDEY, R. M.
700 1 $aALVES, B. J. R.
700 1 $aCASAGRANDE, D. R.
773 $tNutrient Cycling in Agroecosystems$gv. 122, p. 325?346, 2022.
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Registro original: |
Embrapa Agrobiologia (CNPAB) |
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| Acesso ao texto completo restrito à biblioteca da Embrapa Trigo. Para informações adicionais entre em contato com cnpt.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Trigo. |
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Data corrente: |
29/11/1994 |
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Data da última atualização: |
29/11/1994 |
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Autoria: |
LORINI, I.; SALVADORI, J. R.; GASSEN, D. N. |
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Título: |
Avaliação da eficiência de inseticidas no controle da lagarta da soja (Anticarsia gemmatalis Huebner, 1818) na cultura da soja. |
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Ano de publicação: |
1993 |
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Fonte/Imprenta: |
In: REUNIÃO DE PESQUISA DE SOJA DA REGIÃO SUL, 19., 1991, Pelotas. Ata e resumos... Pelotas: EMBRAPA-CPACT, [1993]. E em EMBRAPA. Centro Nacional de Pesquisa de |
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Páginas: |
p. 219 |
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Série: |
(EMBRAPA-CNPT. Documentos, 3). |
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ISSN: |
0101-6444 |
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Idioma: |
Português |
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Notas: |
Trabalho apresentado na XIX Reunião de Pesquisa de Soja da Região Sul, Pelotas, 1991. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 00760naa a2200181 a 4500
001 1823207
005 1994-11-29
008 1993 bl uuuu u00u1 u #d
022 $a0101-6444
100 1 $aLORINI, I.
245 $aAvaliação da eficiência de inseticidas no controle da lagarta da soja (Anticarsia gemmatalis Huebner, 1818) na cultura da soja.
260 $c1993
300 $ap. 219
490 $a(EMBRAPA-CNPT. Documentos, 3).
500 $aTrabalho apresentado na XIX Reunião de Pesquisa de Soja da Região Sul, Pelotas, 1991.
700 1 $aSALVADORI, J. R.
700 1 $aGASSEN, D. N.
773 $tIn: REUNIÃO DE PESQUISA DE SOJA DA REGIÃO SUL, 19., 1991, Pelotas. Ata e resumos... Pelotas: EMBRAPA-CPACT, [1993]. E em EMBRAPA. Centro Nacional de Pesquisa de
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Embrapa Trigo (CNPT) |
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