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Registro Completo |
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Biblioteca(s): |
Embrapa Milho e Sorgo. |
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Data corrente: |
12/03/1998 |
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Data da última atualização: |
13/07/2018 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
SCHAFFERT, R. E.; McCRATE, A. J.; TREVISAN, W. L.; BUENO, A.; MEIRA, J. L.; RHYKERD, C. L. |
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Afiliação: |
ROBERT EUGENE SCHAFFERT, CNPMS. |
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Título: |
Genetic variation in Sorghum bicolor (L.) Moench for tolerance to high levels of exchangable aluminum in acid soils of Brazil. |
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Ano de publicação: |
1975 |
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Fonte/Imprenta: |
In: INTERNATIONAL SORGHUM WORKSHOP, 1975, Mayagnez. [Proceedings...] Mayaguez: University of Puerto Rico, 1975. p. 151-160. |
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Idioma: |
Inglês |
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Palavras-Chave: |
Aluminium; Brasil; Genetic; Solos acidos; Tolerance; Tolerancia. |
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Thesagro: |
Alumínio; Genética; Sorghum Bicolor; Sorgo. |
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Thesaurus Nal: |
acid soils; Brazil. |
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Categoria do assunto: |
G Melhoramento Genético |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/45638/1/Genetic-variation.pdf
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Marc: |
LEADER 00927nam a2200301 a 4500
001 1478839
005 2018-07-13
008 1975 bl uuuu u00u1 u #d
100 1 $aSCHAFFERT, R. E.
245 $aGenetic variation in Sorghum bicolor (L.) Moench for tolerance to high levels of exchangable aluminum in acid soils of Brazil.$h[electronic resource]
260 $aIn: INTERNATIONAL SORGHUM WORKSHOP, 1975, Mayagnez. [Proceedings...] Mayaguez: University of Puerto Rico, 1975. p. 151-160.$c1975
650 $aacid soils
650 $aBrazil
650 $aAlumínio
650 $aGenética
650 $aSorghum Bicolor
650 $aSorgo
653 $aAluminium
653 $aBrasil
653 $aGenetic
653 $aSolos acidos
653 $aTolerance
653 $aTolerancia
700 1 $aMcCRATE, A. J.
700 1 $aTREVISAN, W. L.
700 1 $aBUENO, A.
700 1 $aMEIRA, J. L.
700 1 $aRHYKERD, C. L.
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Registro original: |
Embrapa Milho e Sorgo (CNPMS) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Gado de Leite. Para informações adicionais entre em contato com cnpgl.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Gado de Leite. |
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Data corrente: |
07/07/2022 |
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Data da última atualização: |
15/12/2022 |
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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: |
CÁ, J.; LUSTOSA FILHO, J. F.; SILVA, N. R. da; CASTRO, C. R. T. de; OLIVEIRA, T. S. de. |
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Afiliação: |
JORGE CÁ, Universidade Federal do Ceará; JOSÉ FERREIRA LUSTOSA FILHO, Universidade Federal de Viçosa; NEILSON ROCHA DA SILVA, Universidade Federal do Ceará; CARLOS RENATO TAVARES DE CASTRO, CNPGL; TEOGENES SENNA DE OLIVEIRA, Universidade Federal de Viçosa. |
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Título: |
C and N stocks in silvopastoral systems with high and low tree diversity: Evidence from a twenty-two year old field study. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
Science of the Total Environment, v. 833, 155298, 2022. |
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DOI: |
http://dx.doi.org/10.1016/j.scitotenv.2022.155298 |
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Idioma: |
Inglês |
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Conteúdo: |
This paper aimed to quantify the C and N stocks and the natural abundancy of 13C (delta 13C) in organic matter fractions of soil, as well as soil labile C, in a long-term experiment (1997-2019) on silvopastoral systems (SSP) with low and high tree diversity in the Mata Atlântica biome. Disturbed and undisturbed soil samples were collected in transects that were perpendicular to the tree rows every five meters (0, 5, 10, and 15 m of distance), at depths of: 0.0-0.10, 0.10-0.30. 0.30-0.60, 0.60-1.0 m. Litterfall, root density, total organic C and N content, delta13C values for particulate organic matter (POM) fractions as well as mineral-associated organic matter (MAOM) and soil labile C, whilst stocks were calculated afterwards. Litterfall production was higher in the high diversity SSP for all distances, except for 5 m from the tree row. In contrast to litterfall, higher root density was observed for the longest tree distances (15 m) in the low diversity system. The high tree diversity SSP increased TOC stocks in the top soil layer (0.0-0.10 m, distances of 0 and 10 m) only and C-MAOM stocks in the surface (0.0-0.10 m, 10 m distance) and subsurface (0.10-0.30 m, 0 m distance). In contrast, total N stocks or stocks associated with MAOM and POM were higher in the high tree diversity system. The increases were of 37, 36 and 63%, respectively, for total N, N-MAOM, and N-POM up to 1 m depth. The smallest delta13C values found close to the tree row (0 and 5 m distances), especially in the high diversity system, indicate the influence organic residue from leguminous tree species, whilst the C4 grass held the highest contribution at the 15 m distance, also in the high diversity system. In general, the high diversity tree silvopastoral system has shown potential at storing most C in the 0.0-0.10 m soil layers only and N up to 1 m depth. Results showed very little shift in total C stocks, but the increased N stocks with the inclusion the legumes trees, which is reflected in a lower C:N ratio of the SOM. The silvopastoral system containing signal grass both legumes trees can be looked at as a viable strategy towards sustaining existing soil C stocks, whilst increasing N stocks and SOM quality. MenosThis paper aimed to quantify the C and N stocks and the natural abundancy of 13C (delta 13C) in organic matter fractions of soil, as well as soil labile C, in a long-term experiment (1997-2019) on silvopastoral systems (SSP) with low and high tree diversity in the Mata Atlântica biome. Disturbed and undisturbed soil samples were collected in transects that were perpendicular to the tree rows every five meters (0, 5, 10, and 15 m of distance), at depths of: 0.0-0.10, 0.10-0.30. 0.30-0.60, 0.60-1.0 m. Litterfall, root density, total organic C and N content, delta13C values for particulate organic matter (POM) fractions as well as mineral-associated organic matter (MAOM) and soil labile C, whilst stocks were calculated afterwards. Litterfall production was higher in the high diversity SSP for all distances, except for 5 m from the tree row. In contrast to litterfall, higher root density was observed for the longest tree distances (15 m) in the low diversity system. The high tree diversity SSP increased TOC stocks in the top soil layer (0.0-0.10 m, distances of 0 and 10 m) only and C-MAOM stocks in the surface (0.0-0.10 m, 10 m distance) and subsurface (0.10-0.30 m, 0 m distance). In contrast, total N stocks or stocks associated with MAOM and POM were higher in the high tree diversity system. The increases were of 37, 36 and 63%, respectively, for total N, N-MAOM, and N-POM up to 1 m depth. The smallest delta13C values found close to the tree row (0 and 5 m distances), especiall... Mostrar Tudo |
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Palavras-Chave: |
Diversidade arbórea; Estabilidade C e N; Integração pecuária-floresta; Sistema silvipastoril. |
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Thesagro: |
Leguminosa; Matéria Orgânica; Solo. |
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Categoria do assunto: |
A Sistemas de Cultivo |
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Marc: |
LEADER 03092naa a2200265 a 4500
001 2144508
005 2022-12-15
008 2022 bl uuuu u00u1 u #d
024 7 $ahttp://dx.doi.org/10.1016/j.scitotenv.2022.155298$2DOI
100 1 $aCÁ, J.
245 $aC and N stocks in silvopastoral systems with high and low tree diversity$bEvidence from a twenty-two year old field study.$h[electronic resource]
260 $c2022
520 $aThis paper aimed to quantify the C and N stocks and the natural abundancy of 13C (delta 13C) in organic matter fractions of soil, as well as soil labile C, in a long-term experiment (1997-2019) on silvopastoral systems (SSP) with low and high tree diversity in the Mata Atlântica biome. Disturbed and undisturbed soil samples were collected in transects that were perpendicular to the tree rows every five meters (0, 5, 10, and 15 m of distance), at depths of: 0.0-0.10, 0.10-0.30. 0.30-0.60, 0.60-1.0 m. Litterfall, root density, total organic C and N content, delta13C values for particulate organic matter (POM) fractions as well as mineral-associated organic matter (MAOM) and soil labile C, whilst stocks were calculated afterwards. Litterfall production was higher in the high diversity SSP for all distances, except for 5 m from the tree row. In contrast to litterfall, higher root density was observed for the longest tree distances (15 m) in the low diversity system. The high tree diversity SSP increased TOC stocks in the top soil layer (0.0-0.10 m, distances of 0 and 10 m) only and C-MAOM stocks in the surface (0.0-0.10 m, 10 m distance) and subsurface (0.10-0.30 m, 0 m distance). In contrast, total N stocks or stocks associated with MAOM and POM were higher in the high tree diversity system. The increases were of 37, 36 and 63%, respectively, for total N, N-MAOM, and N-POM up to 1 m depth. The smallest delta13C values found close to the tree row (0 and 5 m distances), especially in the high diversity system, indicate the influence organic residue from leguminous tree species, whilst the C4 grass held the highest contribution at the 15 m distance, also in the high diversity system. In general, the high diversity tree silvopastoral system has shown potential at storing most C in the 0.0-0.10 m soil layers only and N up to 1 m depth. Results showed very little shift in total C stocks, but the increased N stocks with the inclusion the legumes trees, which is reflected in a lower C:N ratio of the SOM. The silvopastoral system containing signal grass both legumes trees can be looked at as a viable strategy towards sustaining existing soil C stocks, whilst increasing N stocks and SOM quality.
650 $aLeguminosa
650 $aMatéria Orgânica
650 $aSolo
653 $aDiversidade arbórea
653 $aEstabilidade C e N
653 $aIntegração pecuária-floresta
653 $aSistema silvipastoril
700 1 $aLUSTOSA FILHO, J. F.
700 1 $aSILVA, N. R. da
700 1 $aCASTRO, C. R. T. de
700 1 $aOLIVEIRA, T. S. de
773 $tScience of the Total Environment$gv. 833, 155298, 2022.
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Embrapa Gado de Leite (CNPGL) |
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