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Registro Completo |
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Biblioteca(s): |
Embrapa Semiárido; Embrapa Unidades Centrais. |
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Data corrente: |
19/09/1997 |
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Data da última atualização: |
13/08/2019 |
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Autoria: |
LEMOS, M. do S. da S.; CURI, N.; MARQUES, J. J. G. de S. e M.; ERNESTO SOBRINHO, F. |
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Afiliação: |
MARIA DO SOCORRO DA SILVA LEMOS, Agronomist, M.Sc; NILTON CURI, Universidade Federal de Lavras - UFLA/Departamento de Ciência do Solo; JOÃO JOSÉ GRANATE DE SÁ E MELO MARQUES, Universidade Federal de Lavras - UFLA; FRANCISCO ERNESTO SOBRINHO, Escola Supe rior de Agricultura de Mossoró - ESAM/Departamento de Solos e Geologia. |
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Título: |
Evaluation of characteristics of cambisols derived from limestone in low tablelands in northeastern Brazil: implications for management. |
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Ano de publicação: |
1997 |
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Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, Brasília, DF, v. 32, n. 8, p. 825-834, ago. 1997 |
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Idioma: |
Inglês |
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Notas: |
Título em português: Avaliação de características de cambissolos derivados de calcário em chapadas do nordeste brasileiro: implicações para manejo. |
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Conteúdo: |
Soils of the low tablelands in Northeastern Brazil have high natural fertility, however, little is known about them. The objective of this study is to provide basic information about the soil and how soil properties relate to their use and management. Two Cambisol pedons were morphologically described and were submitted to physical, chemical and mineralogical analyses. The soils on mid to upper landscape positions are Eutrophic Cambisols and those in lower positions are Vertic Cambisols. For both soils, pH is above 7 and base saturation is higher than 90%. In order to ensure crop production, N, P and micronutrients have to be added as fertilizers. Water runs off the Eutrophic Cambisols and runs on to the Vertic Cambisols, so the Vertic soils have more water available for plant growth. In the Eutrophic Cambisols the main constraints are susceptibility to drought and erosion, while in the Vertic Cambisols the waterlogging risk and mechanization impediments are the critical limitations. Soil properties such as landscape position, color, drying velocity and shrinkage are easily-identifiable field attributes that can be used to recognize different soils that should be managed differently. |
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Palavras-Chave: |
Incipient soils; Morfologia; Propriedade; Recursos naturais; Solo incipiente; Solo vertico; Vertic soils. |
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Thesagro: |
Cambissolo; Drenagem; Física; Mineralogia; Química; Solo. |
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Thesaurus Nal: |
drainage. |
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Categoria do assunto: |
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P Recursos Naturais, Ciências Ambientais e da Terra |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/44802/1/EVALUATION-OF-CHARACTERISTICS-OF-CAMBISOLS-DERIVED.pdf
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Marc: |
LEADER 02319naa a2200337 a 4500
001 1090392
005 2019-08-13
008 1997 bl uuuu u00u1 u #d
100 1 $aLEMOS, M. do S. da S.
245 $aEvaluation of characteristics of cambisols derived from limestone in low tablelands in northeastern Brazil$bimplications for management.
260 $c1997
500 $aTítulo em português: Avaliação de características de cambissolos derivados de calcário em chapadas do nordeste brasileiro: implicações para manejo.
520 $aSoils of the low tablelands in Northeastern Brazil have high natural fertility, however, little is known about them. The objective of this study is to provide basic information about the soil and how soil properties relate to their use and management. Two Cambisol pedons were morphologically described and were submitted to physical, chemical and mineralogical analyses. The soils on mid to upper landscape positions are Eutrophic Cambisols and those in lower positions are Vertic Cambisols. For both soils, pH is above 7 and base saturation is higher than 90%. In order to ensure crop production, N, P and micronutrients have to be added as fertilizers. Water runs off the Eutrophic Cambisols and runs on to the Vertic Cambisols, so the Vertic soils have more water available for plant growth. In the Eutrophic Cambisols the main constraints are susceptibility to drought and erosion, while in the Vertic Cambisols the waterlogging risk and mechanization impediments are the critical limitations. Soil properties such as landscape position, color, drying velocity and shrinkage are easily-identifiable field attributes that can be used to recognize different soils that should be managed differently.
650 $adrainage
650 $aCambissolo
650 $aDrenagem
650 $aFísica
650 $aMineralogia
650 $aQuímica
650 $aSolo
653 $aIncipient soils
653 $aMorfologia
653 $aPropriedade
653 $aRecursos naturais
653 $aSolo incipiente
653 $aSolo vertico
653 $aVertic soils
700 1 $aCURI, N.
700 1 $aMARQUES, J. J. G. de S. e M.
700 1 $aERNESTO SOBRINHO, F.
773 $tPesquisa Agropecuária Brasileira, Brasília, DF$gv. 32, n. 8, p. 825-834, ago. 1997
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Registro original: |
Embrapa Unidades Centrais (AI-SEDE) |
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Registro Completo
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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
14/01/2010 |
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Data da última atualização: |
02/06/2016 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
PEDREIRA, M. S.; PRIMAVESI, O.; LIMA, M. A. de; FRIGHETTO, R. T. S.; OLIVEIRA, S. G. de; BERCHIELLI, T. T. |
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Afiliação: |
MÁRIO DOS SANTOS PEDREIRA, UESB; ODO PRIMAVESI, CPPSE; MAGDA APARECIDA DE LIMA, CNPMA; ROSA TOYOKO SHIRAISHI FRIGHETTO, CNPMA; SIMONE GISELE DE OLIVEIRA, UFPR; TELMA TERESINHA BERCHIELLI, FCAV/UNESP. |
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Título: |
Ruminal methane emission by dairy cattle in southeast Brazil. |
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Ano de publicação: |
2009 |
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Fonte/Imprenta: |
Scientia Agricola, Piracicaba, v. 66, n. 6, p. 742-750, 2009. |
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Idioma: |
Inglês |
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Conteúdo: |
ABSTRACT: Ruminal gases, particularly methane, generated during the fermentative process in rumen, represent a partial loss of feed energy and are also pointed to as an important factors in greenhouse effect. This study aimed at quantifying methane (CH 4) emission rates from lactating and dry cows and heifers, 24 month-old in average, on pasture under Southeast Brazil tropical conditions, using the tracer gas technique, sulphur hexafluoride (SF 6), four animals per category, distributed in four blocks. Measurements were performed in February and June, 2002, with Holstein and Brazilian Dairy Crossbred (Holstein ¾ x Gir (Zebu) ¼), maintained on fertilized Tanzania-grass (Panicum maximum Jacq. cv. Tanzania) and fertilized Brachiaria-grass (Brachiaria decumbens cv. Basilisk) pastures. Heifers of both breeds were maintained on unfertilized Brachiaria-grass to simulate conditions of extensive cattle farming systems. CH 4 and SF 6 levels were measured with gas chromatography. Differences in CH4 emissions were measured (p < 0.05) for genetical groups. Holstein produced more methane (299.3g day?1) than the Crossbred (264.2 g day?1). Lactating cows produced more methane (353.8 g day?1) than dry cows (268.8 g day?1) and heifers (222.6 g day?1). Holstein, with greater milk production potential, produced less CH4 (p < 0.05) per unit of dry matter intake (19.1 g kg?1) than the Crossbred (22.0 g kg?1). Methane emission by heifers grazing fertilized pasture (intensive system) was 222.6 g day?1, greater (p < 0.05) than that of heifers on unfertilized pasture (179.2 g day?1). Methane emission varied as function of animal category and management intensity of production system. MenosABSTRACT: Ruminal gases, particularly methane, generated during the fermentative process in rumen, represent a partial loss of feed energy and are also pointed to as an important factors in greenhouse effect. This study aimed at quantifying methane (CH 4) emission rates from lactating and dry cows and heifers, 24 month-old in average, on pasture under Southeast Brazil tropical conditions, using the tracer gas technique, sulphur hexafluoride (SF 6), four animals per category, distributed in four blocks. Measurements were performed in February and June, 2002, with Holstein and Brazilian Dairy Crossbred (Holstein ¾ x Gir (Zebu) ¼), maintained on fertilized Tanzania-grass (Panicum maximum Jacq. cv. Tanzania) and fertilized Brachiaria-grass (Brachiaria decumbens cv. Basilisk) pastures. Heifers of both breeds were maintained on unfertilized Brachiaria-grass to simulate conditions of extensive cattle farming systems. CH 4 and SF 6 levels were measured with gas chromatography. Differences in CH4 emissions were measured (p < 0.05) for genetical groups. Holstein produced more methane (299.3g day?1) than the Crossbred (264.2 g day?1). Lactating cows produced more methane (353.8 g day?1) than dry cows (268.8 g day?1) and heifers (222.6 g day?1). Holstein, with greater milk production potential, produced less CH4 (p < 0.05) per unit of dry matter intake (19.1 g kg?1) than the Crossbred (22.0 g kg?1). Methane emission by heifers grazing fertilized pasture (intensive system) was 222.6 g da... Mostrar Tudo |
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Thesagro: |
Metano; Pecuária. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/143782/1/2009AP-11.pdf
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Marc: |
LEADER 02280naa a2200205 a 4500
001 1580379
005 2016-06-02
008 2009 bl uuuu u00u1 u #d
100 1 $aPEDREIRA, M. S.
245 $aRuminal methane emission by dairy cattle in southeast Brazil.$h[electronic resource]
260 $c2009
520 $aABSTRACT: Ruminal gases, particularly methane, generated during the fermentative process in rumen, represent a partial loss of feed energy and are also pointed to as an important factors in greenhouse effect. This study aimed at quantifying methane (CH 4) emission rates from lactating and dry cows and heifers, 24 month-old in average, on pasture under Southeast Brazil tropical conditions, using the tracer gas technique, sulphur hexafluoride (SF 6), four animals per category, distributed in four blocks. Measurements were performed in February and June, 2002, with Holstein and Brazilian Dairy Crossbred (Holstein ¾ x Gir (Zebu) ¼), maintained on fertilized Tanzania-grass (Panicum maximum Jacq. cv. Tanzania) and fertilized Brachiaria-grass (Brachiaria decumbens cv. Basilisk) pastures. Heifers of both breeds were maintained on unfertilized Brachiaria-grass to simulate conditions of extensive cattle farming systems. CH 4 and SF 6 levels were measured with gas chromatography. Differences in CH4 emissions were measured (p < 0.05) for genetical groups. Holstein produced more methane (299.3g day?1) than the Crossbred (264.2 g day?1). Lactating cows produced more methane (353.8 g day?1) than dry cows (268.8 g day?1) and heifers (222.6 g day?1). Holstein, with greater milk production potential, produced less CH4 (p < 0.05) per unit of dry matter intake (19.1 g kg?1) than the Crossbred (22.0 g kg?1). Methane emission by heifers grazing fertilized pasture (intensive system) was 222.6 g day?1, greater (p < 0.05) than that of heifers on unfertilized pasture (179.2 g day?1). Methane emission varied as function of animal category and management intensity of production system.
650 $aMetano
650 $aPecuária
700 1 $aPRIMAVESI, O.
700 1 $aLIMA, M. A. de
700 1 $aFRIGHETTO, R. T. S.
700 1 $aOLIVEIRA, S. G. de
700 1 $aBERCHIELLI, T. T.
773 $tScientia Agricola, Piracicaba$gv. 66, n. 6, p. 742-750, 2009.
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Embrapa Meio Ambiente (CNPMA) |
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