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Biblioteca(s): |
Embrapa Agroindústria Tropical; Embrapa Agropecuária Oeste; Embrapa Amapá; Embrapa Amazônia Ocidental; Embrapa Cerrados; Embrapa Clima Temperado; Embrapa Meio-Norte; Embrapa Pantanal; Embrapa Pecuária Sul; Embrapa Rondônia; Embrapa Roraima; Embrapa Semiárido; Embrapa Tabuleiros Costeiros; Embrapa Unidades Centrais. MenosEmbrapa Agroindústria Tropical; Embrapa Agropecuária Oeste; Embrapa Amapá; Embrapa Amazônia Ocidental; Embrapa Cerrados; Embrapa Clima Temperado; Embrapa Meio-Norte; Embrapa Pantanal; Embrapa Pecuária Sul; Embrapa Rondônia... Mostrar Todas |
Data corrente: |
04/04/2002 |
Data da última atualização: |
19/04/2002 |
Autoria: |
COSER, A. C.; PEREIRA, A. V. |
Título: |
Forrageiras para corte e pastejo. |
Ano de publicação: |
2001 |
Fonte/Imprenta: |
Juiz de Fora: Embrapa Gado de Leite, 2001. |
Páginas: |
37 p. |
Série: |
(Embrapa Gado de Leite. Circular Tecnica, 66).
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Idioma: |
Português |
Conteúdo: |
Engloba informações tecnológicas advindas de resultados de pesquisa, descrevendo características produtivas de diferentes forrageiras tropicais e temperadas e suas diferentes formas de uso, bem como respostas em relação ao manejo, à adubação e à irrigação, apresentando, ainda, resultados quantitativos e qualitativos e recomendações para melhor utilização dessas plantas forrageiras, presentes na maioria dos sistemas de produção anima. |
Palavras-Chave: |
Brasil; Corrective dressing; Feed crops; Feeding; Forrageira; Forrageira trpical; Forrageiras tropicais; Juiz de Fora; Minas Gerais; Plant production; Planta forrageira - Corte; Planta forrageira - pastejo; Plantas forrageiras tropicais; Produção de forragem; Producao de forragens; Produção de leite; Production; Sistema de alimentação animal; Sistemas de alimentação; System; Tropical crops; Tropical forage. |
Thesagro: |
Adubação; Alimentação; Alimento Animal; Capim Elefante; Conservação; Corretivo; Corte; Feno; Forrageira Tropical; Forragem; Irrigação; Manejo; Manejo do Solo; Pastagem; Planta Forrageira; Plantio; Produção; Produção Animal; Produção Leiteira; Produção Vegetal; Silagem; Sistema de Alimentação; Variedade. |
Thesaurus Nal: |
animal feeding; animal production; crop management; fertilizers; irrigation; milk production; pastures; planting; soil management; varieties. |
Categoria do assunto: |
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Marc: |
LEADER 02556nam a2200805 a 4500 001 1564715 005 2002-04-19 008 2001 bl uuuu u0uu1 u #d 100 1 $aCOSER, A. C. 245 $aForrageiras para corte e pastejo. 260 $aJuiz de Fora: Embrapa Gado de Leite$c2001 300 $a37 p. 490 $a(Embrapa Gado de Leite. Circular Tecnica, 66). 520 $aEngloba informações tecnológicas advindas de resultados de pesquisa, descrevendo características produtivas de diferentes forrageiras tropicais e temperadas e suas diferentes formas de uso, bem como respostas em relação ao manejo, à adubação e à irrigação, apresentando, ainda, resultados quantitativos e qualitativos e recomendações para melhor utilização dessas plantas forrageiras, presentes na maioria dos sistemas de produção anima. 650 $aanimal feeding 650 $aanimal production 650 $acrop management 650 $afertilizers 650 $airrigation 650 $amilk production 650 $apastures 650 $aplanting 650 $asoil management 650 $avarieties 650 $aAdubação 650 $aAlimentação 650 $aAlimento Animal 650 $aCapim Elefante 650 $aConservação 650 $aCorretivo 650 $aCorte 650 $aFeno 650 $aForrageira Tropical 650 $aForragem 650 $aIrrigação 650 $aManejo 650 $aManejo do Solo 650 $aPastagem 650 $aPlanta Forrageira 650 $aPlantio 650 $aProdução 650 $aProdução Animal 650 $aProdução Leiteira 650 $aProdução Vegetal 650 $aSilagem 650 $aSistema de Alimentação 650 $aVariedade 653 $aBrasil 653 $aCorrective dressing 653 $aFeed crops 653 $aFeeding 653 $aForrageira 653 $aForrageira trpical 653 $aForrageiras tropicais 653 $aJuiz de Fora 653 $aMinas Gerais 653 $aPlant production 653 $aPlanta forrageira - Corte 653 $aPlanta forrageira - pastejo 653 $aPlantas forrageiras tropicais 653 $aProdução de forragem 653 $aProducao de forragens 653 $aProdução de leite 653 $aProduction 653 $aSistema de alimentação animal 653 $aSistemas de alimentação 653 $aSystem 653 $aTropical crops 653 $aTropical forage 700 1 $aPEREIRA, A. V.
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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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