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Registro Completo |
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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
17/10/2006 |
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Data da última atualização: |
19/03/2008 |
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Autoria: |
PICCININ, J. L.; TORRES, E.; ZOTARELLI, L.; SARANVA, O. F.; ESPINDOLA, C. R. |
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Título: |
Crop yield and physical attributes of a clayey oxisol under diferent soil management systems and crop rotation. |
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Ano de publicação: |
2006 |
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Fonte/Imprenta: |
In: WORLD CONGRESS OF SOIL SCIENCE, 18., 2006, Philadelphia. Abstracts... Madison: ASA-CSSA-SSSA, 2006. |
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Descrição Física: |
1 CD-ROM. |
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Idioma: |
Inglês |
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Notas: |
Nome correto do quarto autor SARAIVA, O. F. |
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Conteúdo: |
Tillage and plant species that compose the soil management and crop rotation systems have a pronounced effect on soil physical quality, especially on aggregate stability and soil bulk density. This study aimed to evaluate the degree of aggregate stability in water, bulk density, soil porous space (total, macro e micro porosity) under cultivated no-tillage with chiseling every three years and disk plowing plus harrow disking soil management. Two crop systems were evaluated in each tillage system, with wheat/soybean succession and crop rotation systems, including soybean and/or maize in the summer, and wheat as crop, black oat and/or white lupins as green-manure, in the winter; soil samples under natural vegetation were taken as reference. The field experiment was was carried out from 1999/2000 to 2003/2004 at Embrapa Soybean Research Center in Londrina (Paraná State), Brazil in a Red Latosol (Rhodic Ferralsol). Soil sample were taken at 0-10; 10-20; 20-30 and 30-40 cm depth layer, during each crop flowering season. Compared to the native forest, areas under crop cultivation had soil physical properties degraded, mainly under disk plowing plus harrow disking. Soil ploughing reduced the aggregate stability and organic carbon concentration under with wheat/soybean crop succession. In the four studied depth layers the soil bulk density and micro porosity was higher under treatments with less soil mobilization (no-tillage with chiseling every three years under two crop succession), while the total porosity and macro porosity showed an opposite behavior. The crop rotation systems under no-tillage showed constant values for aggregate stability, bulk density values, total porosity and macro porosity during three consecutive years, indicating no soil compaction tendency over time. The soybean and corn yields did not differ significantly between the management systems, demonstrating that for these crops the soil structure did not affect the yield. Wheat was sensitive to the structural conditions of the soil since the management systems under disk plowing plus harrow disking, this treatment provided more appropriate conditions. The results evidenced no need to mobilize the soil each year or every three years in the areas operated under no tillage systems. The use of crop rotation systems improved the soil physical quality of clayey hapludox, especially due to the increment organic carbon. MenosTillage and plant species that compose the soil management and crop rotation systems have a pronounced effect on soil physical quality, especially on aggregate stability and soil bulk density. This study aimed to evaluate the degree of aggregate stability in water, bulk density, soil porous space (total, macro e micro porosity) under cultivated no-tillage with chiseling every three years and disk plowing plus harrow disking soil management. Two crop systems were evaluated in each tillage system, with wheat/soybean succession and crop rotation systems, including soybean and/or maize in the summer, and wheat as crop, black oat and/or white lupins as green-manure, in the winter; soil samples under natural vegetation were taken as reference. The field experiment was was carried out from 1999/2000 to 2003/2004 at Embrapa Soybean Research Center in Londrina (Paraná State), Brazil in a Red Latosol (Rhodic Ferralsol). Soil sample were taken at 0-10; 10-20; 20-30 and 30-40 cm depth layer, during each crop flowering season. Compared to the native forest, areas under crop cultivation had soil physical properties degraded, mainly under disk plowing plus harrow disking. Soil ploughing reduced the aggregate stability and organic carbon concentration under with wheat/soybean crop succession. In the four studied depth layers the soil bulk density and micro porosity was higher under treatments with less soil mobilization (no-tillage with chiseling every three years under two crop succession)... Mostrar Tudo |
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Categoria do assunto: |
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Marc: |
LEADER 03067naa a2200193 a 4500
001 1469653
005 2008-03-19
008 2006 bl uuuu u00u1 u #d
100 1 $aPICCININ, J. L.
245 $aCrop yield and physical attributes of a clayey oxisol under diferent soil management systems and crop rotation.
260 $c2006
300 $c1 CD-ROM.
500 $aNome correto do quarto autor SARAIVA, O. F.
520 $aTillage and plant species that compose the soil management and crop rotation systems have a pronounced effect on soil physical quality, especially on aggregate stability and soil bulk density. This study aimed to evaluate the degree of aggregate stability in water, bulk density, soil porous space (total, macro e micro porosity) under cultivated no-tillage with chiseling every three years and disk plowing plus harrow disking soil management. Two crop systems were evaluated in each tillage system, with wheat/soybean succession and crop rotation systems, including soybean and/or maize in the summer, and wheat as crop, black oat and/or white lupins as green-manure, in the winter; soil samples under natural vegetation were taken as reference. The field experiment was was carried out from 1999/2000 to 2003/2004 at Embrapa Soybean Research Center in Londrina (Paraná State), Brazil in a Red Latosol (Rhodic Ferralsol). Soil sample were taken at 0-10; 10-20; 20-30 and 30-40 cm depth layer, during each crop flowering season. Compared to the native forest, areas under crop cultivation had soil physical properties degraded, mainly under disk plowing plus harrow disking. Soil ploughing reduced the aggregate stability and organic carbon concentration under with wheat/soybean crop succession. In the four studied depth layers the soil bulk density and micro porosity was higher under treatments with less soil mobilization (no-tillage with chiseling every three years under two crop succession), while the total porosity and macro porosity showed an opposite behavior. The crop rotation systems under no-tillage showed constant values for aggregate stability, bulk density values, total porosity and macro porosity during three consecutive years, indicating no soil compaction tendency over time. The soybean and corn yields did not differ significantly between the management systems, demonstrating that for these crops the soil structure did not affect the yield. Wheat was sensitive to the structural conditions of the soil since the management systems under disk plowing plus harrow disking, this treatment provided more appropriate conditions. The results evidenced no need to mobilize the soil each year or every three years in the areas operated under no tillage systems. The use of crop rotation systems improved the soil physical quality of clayey hapludox, especially due to the increment organic carbon.
700 1 $aTORRES, E.
700 1 $aZOTARELLI, L.
700 1 $aSARANVA, O. F.
700 1 $aESPINDOLA, C. R.
773 $tIn: WORLD CONGRESS OF SOIL SCIENCE, 18., 2006, Philadelphia. Abstracts... Madison: ASA-CSSA-SSSA, 2006.
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Registro original: |
Embrapa Soja (CNPSO) |
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Registro Completo
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Biblioteca(s): |
Embrapa Amapá. |
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Data corrente: |
26/01/1994 |
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Data da última atualização: |
06/10/2022 |
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Tipo da produção científica: |
Boletim de Pesquisa e Desenvolvimento |
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Autoria: |
SOUZA FILHO, A. P. da S.; MEIRELLES, P. R. de L.; PIMENTEL, D. M. |
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Afiliação: |
ANTONIO PEDRO DA SILVA SOUZA FILHO, CPAF-AP; PAULO ROBERTO DE LIMA MEIRELLES, CPAF-AP; DORIVAL MONTEIRO PIMENTEL, CPAF-AP. |
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Título: |
Introdução e avaliação de gramíneas forrageiras em área de várzea do Amapá. |
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Ano de publicação: |
1990 |
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Fonte/Imprenta: |
Macapá: EMBRAPA-UEPAE de Macapá, 1990. |
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Páginas: |
16 p. |
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Série: |
(EMBRAPA-UEPAE de Macapá. Boletim de pesquisa, 7). |
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Idioma: |
Português |
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Conteúdo: |
Nove gramineas forrageiras forma introduzidas em area de varzea alta no municipio de Mazagao (AP). O solo e do tipo Glei Pouco Humico com as seguintes caracteristicas: 44 ppm de fosforo; 41 ppm de potassio; 9,6 meq/100g de calcio mais magnesio; 0,2 meq/100g de aluminio; 2,12% d emateria organica e 5,3 de pH. O delineamento experimental utilizado era blocos com 3 repeticoes. Foram realizados 13 cortes, sendo 7 no periodo de maxima precipitacao e 6 no de minima. Os resultados indicaram que canarana-de-paramaribo e colonia foram as gramineas mais promissoras, tendo apresentados os seguintes valores de producao de materia seca e teores de proteinas bruta e minerais: Canarana-erecta-lisa: 19,2t/ha/ano de materia seca; 4,6% de PB; 0,41% de Ca; 0,13% de P;1,2% de K e 0,18% de Mg. Canarana-de paramaribo: 18,9t/ha/ano de materia seca; 5,4% de PB; 0,40% de Ca; 0,15% de P; 1,2% de K e 0,13% de Mg. Colonia: 16,9t/ha/ano de materia seca; 5,8% de PB; 0,31% de Ca; 0,19% de P; 1,4% de K e 0,16% de Mg. |
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Palavras-Chave: |
Amapá; Avaliacao; Brasil; Content; Dry matter; Evaluation; Forage crop; Forage grass; Mateira seca; Plant; Production; Valuation. |
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Thesagro: |
Composição Química; Forragem; Gramínea; Gramínea Forrageira; Matéria Seca; Planta; Planta Forrageira; Produção; Várzea. |
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Thesaurus NAL: |
Amazonia; Brazil; chemical composition; forage; grasses. |
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Categoria do assunto: |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/97879/1/CPAF-AP-1990-Gramineas-forrageiras.pdf
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Marc: |
LEADER 02204nam a2200469 a 4500
001 1341819
005 2022-10-06
008 1990 bl uuuu u0uu1 u #d
100 1 $aSOUZA FILHO, A. P. da S.
245 $aIntrodução e avaliação de gramíneas forrageiras em área de várzea do Amapá.
260 $aMacapá: EMBRAPA-UEPAE de Macapá$c1990
300 $a16 p.
490 $a(EMBRAPA-UEPAE de Macapá. Boletim de pesquisa, 7).
520 $aNove gramineas forrageiras forma introduzidas em area de varzea alta no municipio de Mazagao (AP). O solo e do tipo Glei Pouco Humico com as seguintes caracteristicas: 44 ppm de fosforo; 41 ppm de potassio; 9,6 meq/100g de calcio mais magnesio; 0,2 meq/100g de aluminio; 2,12% d emateria organica e 5,3 de pH. O delineamento experimental utilizado era blocos com 3 repeticoes. Foram realizados 13 cortes, sendo 7 no periodo de maxima precipitacao e 6 no de minima. Os resultados indicaram que canarana-de-paramaribo e colonia foram as gramineas mais promissoras, tendo apresentados os seguintes valores de producao de materia seca e teores de proteinas bruta e minerais: Canarana-erecta-lisa: 19,2t/ha/ano de materia seca; 4,6% de PB; 0,41% de Ca; 0,13% de P;1,2% de K e 0,18% de Mg. Canarana-de paramaribo: 18,9t/ha/ano de materia seca; 5,4% de PB; 0,40% de Ca; 0,15% de P; 1,2% de K e 0,13% de Mg. Colonia: 16,9t/ha/ano de materia seca; 5,8% de PB; 0,31% de Ca; 0,19% de P; 1,4% de K e 0,16% de Mg.
650 $aAmazonia
650 $aBrazil
650 $achemical composition
650 $aforage
650 $agrasses
650 $aComposição Química
650 $aForragem
650 $aGramínea
650 $aGramínea Forrageira
650 $aMatéria Seca
650 $aPlanta
650 $aPlanta Forrageira
650 $aProdução
650 $aVárzea
653 $aAmapá
653 $aAvaliacao
653 $aBrasil
653 $aContent
653 $aDry matter
653 $aEvaluation
653 $aForage crop
653 $aForage grass
653 $aMateira seca
653 $aPlant
653 $aProduction
653 $aValuation
700 1 $aMEIRELLES, P. R. de L.
700 1 $aPIMENTEL, D. M.
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Embrapa Amapá (CPAF-AP) |
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