Registro Completo
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Biblioteca(s): |
Embrapa Cerrados. |
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Data corrente: |
16/10/1996 |
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Data da última atualização: |
16/10/1996 |
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Autoria: |
RESCK, D. V. S. |
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Título: |
Effect of crop residues and liming on soil physical and chemical properties of tropical and temperate soils. |
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Ano de publicação: |
1986 |
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Fonte/Imprenta: |
[s.l.]: Purdue University, 1986. |
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Páginas: |
264p. |
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Idioma: |
Inglês |
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Notas: |
Ph.D. Thesis. |
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Conteúdo: |
Fertilization and liming, as well as the return of crop residues to the soil, are essential to prevent a rapid loss of organic carbon content from cultivated soils. Tropical and Temperate soils will likely respond differently to these amendments. An incubation study was designed to test the effects of corn, soybean, or no residue additons, with or without the addition of lime, on soil physical and chemical properties of two Oxisols (virgin and cultivated) from the Cerrados region of Brazili and a Mollisol and Inceptisol from Indiana. The soil properties measured at 0, 10, 20, 30, 60 and 90 days of incubation included organic carbon, pH, cation exchange capacity (CEC), water-stable aggregation, and water retention at -10, -33, and -100 kPa water potential. Carbon dioxide evolution was measured at short time intervals throughout the 90 days of incubation. The decrease in organic carbon content with time was in the order Inceptisol > Mollisol > Cultivated Oxisol > Virgin oxisol. Microbial activity, as measured by CO2 evolution rates, was almost twice as great in the Temperate soils as in the Tropical soils. The addition of lime and crop residues tended to decrease water retention capacity of the Virgin Oxisol, whereas the no residue treatment was not affected by lime. Lime did not affect water retention for any crops in the Cultivated Oxisol or in the Mollisol. Time of incubation had a positive effect on soil water-stable aggregation. Lime decreased water-stable aggregation in the Virgin Oxisol when to residue... MenosFertilization and liming, as well as the return of crop residues to the soil, are essential to prevent a rapid loss of organic carbon content from cultivated soils. Tropical and Temperate soils will likely respond differently to these amendments. An incubation study was designed to test the effects of corn, soybean, or no residue additons, with or without the addition of lime, on soil physical and chemical properties of two Oxisols (virgin and cultivated) from the Cerrados region of Brazili and a Mollisol and Inceptisol from Indiana. The soil properties measured at 0, 10, 20, 30, 60 and 90 days of incubation included organic carbon, pH, cation exchange capacity (CEC), water-stable aggregation, and water retention at -10, -33, and -100 kPa water potential. Carbon dioxide evolution was measured at short time intervals throughout the 90 days of incubation. The decrease in organic carbon content with time was in the order Inceptisol > Mollisol > Cultivated Oxisol > Virgin oxisol. Microbial activity, as measured by CO2 evolution rates, was almost twice as great in the Temperate soils as in the Tropical soils. The addition of lime and crop residues tended to decrease water retention capacity of the Virgin Oxisol, whereas the no residue treatment was not affected by lime. Lime did not affect water retention for any crops in the Cultivated Oxisol or in the Mollisol. Time of incubation had a positive effect on soil water-stable aggregation. Lime decreased water-stable aggregation in ... Mostrar Tudo |
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Palavras-Chave: |
Cultura agricola; Maize; Regiao Tropical; Soil chemicophysical properties; Tropical zones. |
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Thesagro: |
Calagem; Cambissolo; Cerrado; Glycine Max; Milho; Oxisol; Planossolo; Propriedade Físico-Química; Região Temperada; Resíduo Orgânico; Soja; Solo; Zea Mays. |
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Thesaurus NAL: |
Cambisols; crop residues; Ferralsols; Inceptisols; liming; Mollisols; Planosols; soybeans; temperate zones. |
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Categoria do assunto: |
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Marc: |
LEADER 02702nam a2200457 a 4500
001 1551943
005 1996-10-16
008 1986 bl uuuu m 00u1 u #d
100 1 $aRESCK, D. V. S.
245 $aEffect of crop residues and liming on soil physical and chemical properties of tropical and temperate soils.
260 $a[s.l.]: Purdue University$c1986
300 $a264p.
500 $aPh.D. Thesis.
520 $aFertilization and liming, as well as the return of crop residues to the soil, are essential to prevent a rapid loss of organic carbon content from cultivated soils. Tropical and Temperate soils will likely respond differently to these amendments. An incubation study was designed to test the effects of corn, soybean, or no residue additons, with or without the addition of lime, on soil physical and chemical properties of two Oxisols (virgin and cultivated) from the Cerrados region of Brazili and a Mollisol and Inceptisol from Indiana. The soil properties measured at 0, 10, 20, 30, 60 and 90 days of incubation included organic carbon, pH, cation exchange capacity (CEC), water-stable aggregation, and water retention at -10, -33, and -100 kPa water potential. Carbon dioxide evolution was measured at short time intervals throughout the 90 days of incubation. The decrease in organic carbon content with time was in the order Inceptisol > Mollisol > Cultivated Oxisol > Virgin oxisol. Microbial activity, as measured by CO2 evolution rates, was almost twice as great in the Temperate soils as in the Tropical soils. The addition of lime and crop residues tended to decrease water retention capacity of the Virgin Oxisol, whereas the no residue treatment was not affected by lime. Lime did not affect water retention for any crops in the Cultivated Oxisol or in the Mollisol. Time of incubation had a positive effect on soil water-stable aggregation. Lime decreased water-stable aggregation in the Virgin Oxisol when to residue...
650 $aCambisols
650 $acrop residues
650 $aFerralsols
650 $aInceptisols
650 $aliming
650 $aMollisols
650 $aPlanosols
650 $asoybeans
650 $atemperate zones
650 $aCalagem
650 $aCambissolo
650 $aCerrado
650 $aGlycine Max
650 $aMilho
650 $aOxisol
650 $aPlanossolo
650 $aPropriedade Físico-Química
650 $aRegião Temperada
650 $aResíduo Orgânico
650 $aSoja
650 $aSolo
650 $aZea Mays
653 $aCultura agricola
653 $aMaize
653 $aRegiao Tropical
653 $aSoil chemicophysical properties
653 $aTropical zones
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Registro original: |
Embrapa Cerrados (CPAC) |
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