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Registro Completo |
Biblioteca(s): |
Embrapa Instrumentação. |
Data corrente: |
30/04/2008 |
Data da última atualização: |
30/04/2008 |
Autoria: |
SAAB, S. da C.; MARTIN-NETO, L.; CONCEIÇÃO, M. da. |
Título: |
Determination of thermal stability of humified organic substances in organo-minerals fractions by EPR. |
Ano de publicação: |
2000 |
Fonte/Imprenta: |
In: INTERNATIONAL MEETING OF THE INTERNATIONAL HUMIC SUBSTANCES SOCIETY-IHSS, 10., 2000, Toulouse, France. Entering the third millenium with a common approach to humic substances and organic matter in water, soil and sediments: proceedings... [S.l.]: IHSS, 2000. v.1, p. 179-182. |
Idioma: |
Inglês |
Categoria do assunto: |
-- |
Marc: |
LEADER 00657naa a2200133 a 4500 001 1030962 005 2008-04-30 008 2000 bl --- 0-- u #d 100 1 $aSAAB, S. da C. 245 $aDetermination of thermal stability of humified organic substances in organo-minerals fractions by EPR. 260 $c2000 700 1 $aMARTIN-NETO, L. 700 1 $aCONCEIÇÃO, M. da 773 $tIn: INTERNATIONAL MEETING OF THE INTERNATIONAL HUMIC SUBSTANCES SOCIETY-IHSS, 10., 2000, Toulouse, France. Entering the third millenium with a common approach to humic substances and organic matter in water, soil and sediments: proceedings... [S.l.]: IHSS, 2000.$gv.1, p. 179-182.
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Embrapa Instrumentação (CNPDIA) |
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Biblioteca(s): |
Embrapa Unidades Centrais. |
Data corrente: |
04/01/2002 |
Data da última atualização: |
13/12/2018 |
Autoria: |
VALPASSOS, M. A. R.; CAVALCANTE, E. G. S.; CASSIOLATO, A. M. R.; ALVES, M. C. |
Afiliação: |
Maria Alexandra Reis Valpassos, Universidade Estadual Paulista - Unesp/Departamento de Biologia; Eloiza Gomes Silva Cavalcante, Universidade Estadual Paulista - Unesp/Faculdade de Engenharia/Departamento de Ciências do Solo e Engenharia Rural; Ana Maria Rodrigues Cassiolato, Universidade Estadual Paulista - Unesp/Faculdade de Engenharia/Departamento de Biologia; Marlene Cristina Alves, Universidade Estadual Paulista - Unesp/Faculdade de Engenharia/Departamento de Ciências do Solo e Engenharia Rural. |
Título: |
Effects of soil management systems on soil microbial activity, bulk density and chemical properties. |
Ano de publicação: |
2001 |
Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, Brasília, DF, v. 36, n. 12, p. 1539-1545, dez. 2001 |
Idioma: |
Inglês |
Notas: |
Título em português: Efeitos de sistemas de uso e manejo na atividade microbiana, densidade e propriedades químicas do solo. |
Conteúdo: |
The objective of this experiment was to study the effects of soil management systems on the bulk density, chemical soil properties, and on the soil microbial activity on a Latossolo Vermelho distrófico (Oxisol). Soil samples were collected from plots under the following management conditions: a) natural dense "cerrado" vegetation (savanna); b) degraded Brachiaria decumbens pasture, 20 years old; c) no-tillage treatment with annual crop sequence (bean, corn, soybean and dark-oat in continuous rotation), 8 years old; d) conventional tillage treatment with crop residues added to the soil, and annual crop sequence, 10 years old. The continuous use of no-tillage system resulted in an increase in microbial biomass and decrease in soil basal respiration, therefore displaying evident long-term effects on the increase of soil C content. The no-tillage system also provided an improvement in bulk density and chemical properties of the soil. Hence, the no-tillage management system could be an alternative for the conservation and maintenance of physical and chemical conditions and the productive potential of "cerrado" soils. |
Palavras-Chave: |
degradação do solo; propriedades físico-químicas do solo; soil chemicophysical properties; soil deterioration. |
Thesagro: |
Biomassa; Conservação do Solo. |
Thesaurus NAL: |
biomass; soil conservation. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/AI-SEDE/21006/1/1539.pdf
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Marc: |
LEADER 02090naa a2200265 a 4500 001 1105912 005 2018-12-13 008 2001 bl uuuu u00u1 u #d 100 1 $aVALPASSOS, M. A. R. 245 $aEffects of soil management systems on soil microbial activity, bulk density and chemical properties. 260 $c2001 500 $aTítulo em português: Efeitos de sistemas de uso e manejo na atividade microbiana, densidade e propriedades químicas do solo. 520 $aThe objective of this experiment was to study the effects of soil management systems on the bulk density, chemical soil properties, and on the soil microbial activity on a Latossolo Vermelho distrófico (Oxisol). Soil samples were collected from plots under the following management conditions: a) natural dense "cerrado" vegetation (savanna); b) degraded Brachiaria decumbens pasture, 20 years old; c) no-tillage treatment with annual crop sequence (bean, corn, soybean and dark-oat in continuous rotation), 8 years old; d) conventional tillage treatment with crop residues added to the soil, and annual crop sequence, 10 years old. The continuous use of no-tillage system resulted in an increase in microbial biomass and decrease in soil basal respiration, therefore displaying evident long-term effects on the increase of soil C content. The no-tillage system also provided an improvement in bulk density and chemical properties of the soil. Hence, the no-tillage management system could be an alternative for the conservation and maintenance of physical and chemical conditions and the productive potential of "cerrado" soils. 650 $abiomass 650 $asoil conservation 650 $aBiomassa 650 $aConservação do Solo 653 $adegradação do solo 653 $apropriedades físico-químicas do solo 653 $asoil chemicophysical properties 653 $asoil deterioration 700 1 $aCAVALCANTE, E. G. S. 700 1 $aCASSIOLATO, A. M. R. 700 1 $aALVES, M. C. 773 $tPesquisa Agropecuária Brasileira, Brasília, DF$gv. 36, n. 12, p. 1539-1545, dez. 2001
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