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Registro Completo |
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Biblioteca(s): |
Embrapa Agrobiologia; Embrapa Amazônia Ocidental; Embrapa Amazônia Oriental; Embrapa Cerrados; Embrapa Florestas; Embrapa Gado de Leite; Embrapa Meio Norte / UEP-Parnaíba; Embrapa Semiárido; Embrapa Solos; Embrapa Tabuleiros Costeiros. |
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Data corrente: |
01/06/1992 |
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Data da última atualização: |
13/08/1996 |
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Autoria: |
KLUTHCOUSKI, J. |
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Título: |
Leucena: alternativa para a pequena e media agricultura. |
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Ano de publicação: |
1980 |
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Fonte/Imprenta: |
Goiania : EMBRAPA-CNPAF, 1980. |
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Páginas: |
12p. |
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Descrição Física: |
2 tabelas; 3 fotografias. |
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Série: |
(EMBRAPA-CNPAF. Circular Tecnica, 6) |
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Idioma: |
Português |
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Conteúdo: |
O seu emprego na agricultura pode ser diverso, incluindo o reflorestamento - visando a lenha, carvão, celulose, quebra-vento, conservação e fertilidade do solo - até alimentação animal. Dentre estes, a alimentação animal e a adubação verde se destacam como mais importantes. A leucena é uma leguminosa perene, de crescimento rápido, atingindo até 3 m no primeiro ano, com sistema radicular muito profundo, que se desenvolve em simbiose com batérias do gênro Rhizobium, as quais até 400 kg/ha/ano de N e, ainda, associam-se a fungos do gênero Mycorrhizae que viabilizam a utilização do fósforo não disponível para a maioria das culturas. |
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Palavras-Chave: |
Brasil; Brazilian savannas; CNPAF; Cultivation; Cultivo; EMBRAPA; Feed legumes; Forrageira; Leucena; Leucena leucociphala; Management; Pequeno agricultor; Planta leguminosa forrageira. |
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Thesagro: |
Agricultura; Cerrado; Implantação de Cultura; Leucaena; Leucaena Leucocephala; Manejo; Nutrição Animal. |
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Thesaurus Nal: |
agriculture; animal feeding; Brazil; plant establishment; small farms. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01788nam a2200433 a 4500
001 1556406
005 1996-08-13
008 1980 bl uuuu u0uu1 u #d
100 1 $aKLUTHCOUSKI, J.
245 $aLeucena$balternativa para a pequena e media agricultura.
260 $aGoiania : EMBRAPA-CNPAF$c1980
300 $a12p.$c2 tabelas; 3 fotografias.
490 $a(EMBRAPA-CNPAF. Circular Tecnica, 6)
520 $aO seu emprego na agricultura pode ser diverso, incluindo o reflorestamento - visando a lenha, carvão, celulose, quebra-vento, conservação e fertilidade do solo - até alimentação animal. Dentre estes, a alimentação animal e a adubação verde se destacam como mais importantes. A leucena é uma leguminosa perene, de crescimento rápido, atingindo até 3 m no primeiro ano, com sistema radicular muito profundo, que se desenvolve em simbiose com batérias do gênro Rhizobium, as quais até 400 kg/ha/ano de N e, ainda, associam-se a fungos do gênero Mycorrhizae que viabilizam a utilização do fósforo não disponível para a maioria das culturas.
650 $aagriculture
650 $aanimal feeding
650 $aBrazil
650 $aplant establishment
650 $asmall farms
650 $aAgricultura
650 $aCerrado
650 $aImplantação de Cultura
650 $aLeucaena
650 $aLeucaena Leucocephala
650 $aManejo
650 $aNutrição Animal
653 $aBrasil
653 $aBrazilian savannas
653 $aCNPAF
653 $aCultivation
653 $aCultivo
653 $aEMBRAPA
653 $aFeed legumes
653 $aForrageira
653 $aLeucena
653 $aLeucena leucociphala
653 $aManagement
653 $aPequeno agricultor
653 $aPlanta leguminosa forrageira
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Registro original: |
Embrapa Cerrados (CPAC) |
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Voltar
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Solos. Para informações adicionais entre em contato com cnps.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Solos. |
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Data corrente: |
07/02/2022 |
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Data da última atualização: |
11/02/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
SOUSA, M. G.; ARAUJO, J. K. S.; FRACETTO, G. G. M.; FERREIRA, T. O.; FRACETTO, F. J. C.; ARAUJO FILHO, J. C. de; OTERO, X. L.; SANTOS, J. C. B. dos; SILVA, A. H. N. da; SOUZA JUNIOR, V. S. de. |
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Afiliação: |
MARILYA GABRYELLA SOUSA, UFRPE; JANE KELLY SILVA ARAUJO, UFRPE; GISELLE GOMES MONTEIRO FRACETTO, UFRPE; TIAGO OSÓRIO FERREIRA, USP/ESALQ; FELIPE JOSÉ CURY FRACETTO, UFRPE; JOSE COELHO DE ARAUJO FILHO, CNPS; XOSÉ LOIS OTERO, UNIVERSIDADE DE SANTIAGO DE COMPOSTELA; JEAN CHEYSON BARROS DOS SANTOS, UFRPE; ARTUR HENRIQUE NASCIMENTO DA SILVA, UFRPE; VALDOMIRO SEVERINO DE SOUZA JUNIOR, UFRPE. |
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Título: |
Changes in organic carbon and microbiology community structure due to long-term irrigated agriculture on Luvisols in the Brazilian semi-arid region. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
Catena, v. 212, 106058, May 2022. |
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DOI: |
https://doi.org/10.1016/j.catena.2022.106058 |
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Idioma: |
Inglês |
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Conteúdo: |
Changes in the global water cycle affect irrigation requirements and soil processes as well as the structure of soil microbial communities and function and the carbon (C) balance. The microbial structure and C sequestration under land use changing scenarios are rarely studied in the semi-arid region of Brazil. Here, we assessed the effects of land-use changes (irrigation and cultivation) on C storage in the soil and the structure of total bacteria (16S rRNA gene profile) and fungus (18S rRNA gene profile) at soil depth. We evaluated two soil profiles in the semi-arid region in northeastern Brazil. Profile P1 in an area with long-term irrigation (1,500 mm of water per year) and cultivation (small-scale farming systems, mainly with subsistence crops, which is a frequent land use system in the region of irrigated soil) for about 26 years. Profile P2 under natural conditions with 400 mm of water per year of rainfall (rain-fed hyperxerophilic Caatinga). Land-use changes showed a small influence on C storage; however, the changes strongly affected the soil organic matter (SOM) quality as well as the bacterial and fungal community structure, indicated by higher contents of labile-C and microbial biomass along with lower C-CO2 emission. The relatively large amounts of aliphatic groups in the soil surface and subsurface in the cropped system (P1) suggested enrichment of methylene structures and probable increase of microbial-derived compounds. Methoxylic and aromatic groups tend to increase at depth (Bt horizon) indicating that the subsoil C responds to soil management changes. The structures of the bacterial community are distinct at depth in P1 and more similar at depth in P2. On the other hand, the structures of the fungal communities are more similar at depth in P1 than in P2. Furthermore, the irrigated agriculture also presented a carbon management index greater than 140% in most horizons, indicating that the soil management system did not cause soil degradation. MenosChanges in the global water cycle affect irrigation requirements and soil processes as well as the structure of soil microbial communities and function and the carbon (C) balance. The microbial structure and C sequestration under land use changing scenarios are rarely studied in the semi-arid region of Brazil. Here, we assessed the effects of land-use changes (irrigation and cultivation) on C storage in the soil and the structure of total bacteria (16S rRNA gene profile) and fungus (18S rRNA gene profile) at soil depth. We evaluated two soil profiles in the semi-arid region in northeastern Brazil. Profile P1 in an area with long-term irrigation (1,500 mm of water per year) and cultivation (small-scale farming systems, mainly with subsistence crops, which is a frequent land use system in the region of irrigated soil) for about 26 years. Profile P2 under natural conditions with 400 mm of water per year of rainfall (rain-fed hyperxerophilic Caatinga). Land-use changes showed a small influence on C storage; however, the changes strongly affected the soil organic matter (SOM) quality as well as the bacterial and fungal community structure, indicated by higher contents of labile-C and microbial biomass along with lower C-CO2 emission. The relatively large amounts of aliphatic groups in the soil surface and subsurface in the cropped system (P1) suggested enrichment of methylene structures and probable increase of microbial-derived compounds. Methoxylic and aromatic groups tend to i... Mostrar Tudo |
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Palavras-Chave: |
DGGE. |
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Thesaurus NAL: |
Land use; Luvisols; Microorganisms; Soil management. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 02934naa a2200301 a 4500
001 2139749
005 2022-02-11
008 2022 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.catena.2022.106058$2DOI
100 1 $aSOUSA, M. G.
245 $aChanges in organic carbon and microbiology community structure due to long-term irrigated agriculture on Luvisols in the Brazilian semi-arid region.$h[electronic resource]
260 $c2022
520 $aChanges in the global water cycle affect irrigation requirements and soil processes as well as the structure of soil microbial communities and function and the carbon (C) balance. The microbial structure and C sequestration under land use changing scenarios are rarely studied in the semi-arid region of Brazil. Here, we assessed the effects of land-use changes (irrigation and cultivation) on C storage in the soil and the structure of total bacteria (16S rRNA gene profile) and fungus (18S rRNA gene profile) at soil depth. We evaluated two soil profiles in the semi-arid region in northeastern Brazil. Profile P1 in an area with long-term irrigation (1,500 mm of water per year) and cultivation (small-scale farming systems, mainly with subsistence crops, which is a frequent land use system in the region of irrigated soil) for about 26 years. Profile P2 under natural conditions with 400 mm of water per year of rainfall (rain-fed hyperxerophilic Caatinga). Land-use changes showed a small influence on C storage; however, the changes strongly affected the soil organic matter (SOM) quality as well as the bacterial and fungal community structure, indicated by higher contents of labile-C and microbial biomass along with lower C-CO2 emission. The relatively large amounts of aliphatic groups in the soil surface and subsurface in the cropped system (P1) suggested enrichment of methylene structures and probable increase of microbial-derived compounds. Methoxylic and aromatic groups tend to increase at depth (Bt horizon) indicating that the subsoil C responds to soil management changes. The structures of the bacterial community are distinct at depth in P1 and more similar at depth in P2. On the other hand, the structures of the fungal communities are more similar at depth in P1 than in P2. Furthermore, the irrigated agriculture also presented a carbon management index greater than 140% in most horizons, indicating that the soil management system did not cause soil degradation.
650 $aLand use
650 $aLuvisols
650 $aMicroorganisms
650 $aSoil management
653 $aDGGE
700 1 $aARAUJO, J. K. S.
700 1 $aFRACETTO, G. G. M.
700 1 $aFERREIRA, T. O.
700 1 $aFRACETTO, F. J. C.
700 1 $aARAUJO FILHO, J. C. de
700 1 $aOTERO, X. L.
700 1 $aSANTOS, J. C. B. dos
700 1 $aSILVA, A. H. N. da
700 1 $aSOUZA JUNIOR, V. S. de
773 $tCatena$gv. 212, 106058, May 2022.
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