|
|
Registro Completo |
Biblioteca(s): |
Embrapa Agrobiologia. |
Data corrente: |
11/10/2006 |
Data da última atualização: |
11/10/2006 |
Autoria: |
SCHOMBERG, H. H.; ENDALE, D. M.; CALEGARI, A.; PEIXOTO, R. T. dos G.; MIYAZAWA, M.; CABRERA, M. L. |
Título: |
Influence of cover crops on potential nitrogen availability to succeeding crops in a southern Piedmont soil. |
Ano de publicação: |
2006 |
Fonte/Imprenta: |
Biology and Fertility of Soils, Boca Raton, v. 42, n. 4, p. 299-307, mar. 2006. |
Idioma: |
Inglês |
Conteúdo: |
Winter cover crops are essential in conservation tillage systems to protect soils from erosion and for improving soil productivity. Black oat (Avena strigosa Schereb) and oliseed radish ( Raphanus sativus L.) could be useful cover crops in the southeastern USA, but successful adoption requires understanding their unfluence on N availability in conservation tillage systems. Black oat and oilseed radish were compared to crimson clover (trifolium incarnatum L.) and rye ( Secale cereale L.) for biomass production and effects on N mineralization during the summer crop growing season from fall 1998 through summer 2002 near Watkinville, GA. Rye produced 40 to 60% more biomass, although N contents were less than the other cover crops. Oilseed radish and black oat N contents were similar to crimson clover. Black oat, oilseed radish, and crimson clover C/N ratios were less than 30. Where as rye averaged 39. Amount of N mineralized in 90 days (Nmin90) measured with in situ soil cores was 1.3 to 2.2 times greater following black oat , crimson clover, and oilseed radish than following rye. No differences in N min 90 were found between black oats, crimson clover, and oilseed radish in 1999 and 2000. The amount of potentially mineralizable N (N0) was not different due to cover crop, but was 1.5 time greater in 2000 and 2002 than in 1999. The rate of N mineralization (k) was 20 to 50% slower following rye than the other three cover crops. Black oat and oilseed radish biomass production and soil N mineralization dynamics were more similar to crimson clover than to rye, which indicates than they could be used as cover crops in the southeast without significant changes in N recommendations for most crops. MenosWinter cover crops are essential in conservation tillage systems to protect soils from erosion and for improving soil productivity. Black oat (Avena strigosa Schereb) and oliseed radish ( Raphanus sativus L.) could be useful cover crops in the southeastern USA, but successful adoption requires understanding their unfluence on N availability in conservation tillage systems. Black oat and oilseed radish were compared to crimson clover (trifolium incarnatum L.) and rye ( Secale cereale L.) for biomass production and effects on N mineralization during the summer crop growing season from fall 1998 through summer 2002 near Watkinville, GA. Rye produced 40 to 60% more biomass, although N contents were less than the other cover crops. Oilseed radish and black oat N contents were similar to crimson clover. Black oat, oilseed radish, and crimson clover C/N ratios were less than 30. Where as rye averaged 39. Amount of N mineralized in 90 days (Nmin90) measured with in situ soil cores was 1.3 to 2.2 times greater following black oat , crimson clover, and oilseed radish than following rye. No differences in N min 90 were found between black oats, crimson clover, and oilseed radish in 1999 and 2000. The amount of potentially mineralizable N (N0) was not different due to cover crop, but was 1.5 time greater in 2000 and 2002 than in 1999. The rate of N mineralization (k) was 20 to 50% slower following rye than the other three cover crops. Black oat and oilseed radish biomass production an... Mostrar Tudo |
Palavras-Chave: |
N. |
Thesagro: |
Nitrogênio; Solo. |
Thesaurus Nal: |
nitrogen; soil. |
Categoria do assunto: |
-- |
Marc: |
LEADER 02401naa a2200241 a 4500 001 1628949 005 2006-10-11 008 2006 bl --- 0-- u #d 100 1 $aSCHOMBERG, H. H. 245 $aInfluence of cover crops on potential nitrogen availability to succeeding crops in a southern Piedmont soil. 260 $c2006 520 $aWinter cover crops are essential in conservation tillage systems to protect soils from erosion and for improving soil productivity. Black oat (Avena strigosa Schereb) and oliseed radish ( Raphanus sativus L.) could be useful cover crops in the southeastern USA, but successful adoption requires understanding their unfluence on N availability in conservation tillage systems. Black oat and oilseed radish were compared to crimson clover (trifolium incarnatum L.) and rye ( Secale cereale L.) for biomass production and effects on N mineralization during the summer crop growing season from fall 1998 through summer 2002 near Watkinville, GA. Rye produced 40 to 60% more biomass, although N contents were less than the other cover crops. Oilseed radish and black oat N contents were similar to crimson clover. Black oat, oilseed radish, and crimson clover C/N ratios were less than 30. Where as rye averaged 39. Amount of N mineralized in 90 days (Nmin90) measured with in situ soil cores was 1.3 to 2.2 times greater following black oat , crimson clover, and oilseed radish than following rye. No differences in N min 90 were found between black oats, crimson clover, and oilseed radish in 1999 and 2000. The amount of potentially mineralizable N (N0) was not different due to cover crop, but was 1.5 time greater in 2000 and 2002 than in 1999. The rate of N mineralization (k) was 20 to 50% slower following rye than the other three cover crops. Black oat and oilseed radish biomass production and soil N mineralization dynamics were more similar to crimson clover than to rye, which indicates than they could be used as cover crops in the southeast without significant changes in N recommendations for most crops. 650 $anitrogen 650 $asoil 650 $aNitrogênio 650 $aSolo 653 $aN 700 1 $aENDALE, D. M. 700 1 $aCALEGARI, A. 700 1 $aPEIXOTO, R. T. dos G. 700 1 $aMIYAZAWA, M. 700 1 $aCABRERA, M. L. 773 $tBiology and Fertility of Soils, Boca Raton$gv. 42, n. 4, p. 299-307, mar. 2006.
Download
Esconder MarcMostrar Marc Completo |
Registro original: |
Embrapa Agrobiologia (CNPAB) |
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
Registros recuperados : 69 | |
3. | | FRANCHINI, J. C.; MIYAZAWA, M.; PAVAN, M. A.; MALAVOLTA, E. Dinâmica de íons em solo ácido lixiviado com extratos de resíduos de adubos verdes e soluções puras de ácidos orgânicos. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 34, n. 12, p. 2267-2276, nov. 1999 Título em inglês: Dynamic of ions in acid soil leached with green manure residues extracts and pure solutions of organic acids.Biblioteca(s): Embrapa Unidades Centrais. |
| |
9. | | FRANCHINI, J. C.; MIYAZAWA, M.; PAVAN, M. A. Influência de resíduos vegetais nba toxidez de Al e na mobilidade de íons no solo. In: REUNIÃO BRASILEIRA DE FERTILIDADE DO SOLO E NUTRIÇÃO DE PLANTAS, 26.; REUNIÃO BRASILEIRA SOBRE MICORRIZAS, 10.; SIMPÓSIO BRASILEIRO DE MICROBIOLOGIA DO SOLO, 8.; REUNIÃO BRASILEIRA DE BIOLOGIA DO SOLO, 5., 2004, Lages. Fertbio 2004. Lages: SBCS, 2004. 1 CD-ROM.Biblioteca(s): Embrapa Soja. |
| |
14. | | MARTIN-NETO, L.; MIYAZAWA, M.; BONAGAMBA, T.; COLNAGO, L. A.; PANEPUCCI, H. C.; VIEIRA, E. M. Análises espectroscópica e química da matéria orgânica de um latossolo roxo sob manejo convencional e plantio direto. In: CONGRESSO BRASILEIRO PLANTIO DIRETO PARA UMA AGRICULTURA SUSTENTAVEL, 1., mar. 1996, Ponta Grossa, PR. Anais... Ponta Grossa, [s.n.], 1996. p.86-88.Biblioteca(s): Embrapa Instrumentação. |
| |
15. | | MARTIN-NETO, L.; BONAGAMBA, T. J.; COLNAGO, L. A.; PANEPUCCI, H. C.; VIEIRA, E.; MIYAZAWA, M. Avaliacao dos efeitos de diferentes manejos do solo sobre aspectos qualitativos das substancias humicas por RMN do estado solido. In: ENCONTRO DE USUARIOS DE RESSONANCIA MAGNETICA NUCLEAR, 5., maio 1995, Angra dos Reis, RJ. Resumos... Rio de Janeiro: AUREMN, 1995. p.62.Biblioteca(s): Embrapa Instrumentação. |
| |
16. | | MARTIN-NETO, L.; MAREGA, J. A. M. M.; NASCIMENTO, O. R.; VIEIRA, E. M.; MIYAZAWA, M. Avaliação dos efeitos do manejo convencional e plantio direto sobre aspectos qualitativos das substâncias húmicas de um latossolo roxo. In: REUNIAO BRASILEIRA DE MANEJO E CONSERVACAO DO SOLO E DA AGUA: PEQUENA PROPRIEDADE X DESENVOLVIMENTO SUSTENTAVEL, 10., jul. 1994, Florianopolis, SC. Resumos... Florianopolis: Sociedade Brasileira de Ciencia do Solo, 1994. p.226-227. Ref.059.Biblioteca(s): Embrapa Instrumentação. |
| |
17. | | MARTIN-NETO, L.; MIYAZAWA, M.; BONAGAMBA, T.; COLNAGO, L. A.; PANEPUCCI, H. C.; VIEIRA, E. M. Avaliação dos efeitos de manejos do solo sobre a matéria orgânica e ácido húmico de um latossolo roxo: análises espectroscópicas e química. In: CONGRESSO LATINO AMERICANO DE CIENCIA DO SOLO, 13., ago. 1996, Aguas de Lindoia, SP. Solo suelo 96. Campinas: Sociedade Brasileira de Ciencia do Solo, 1996. 4 p. 1 CD-ROM.Biblioteca(s): Embrapa Instrumentação. |
| |
20. | | FRANCHINI, J. C.; PAVAN, M. A.; MIYAZAWA, M.; TORRES, E.; SARAIVA, O. F. Contribuição de resíduos vegetais para a fertilidade e conservação do carbono do solo no plantio direto. In: CONGRESSO BRASILEIRO DE SOJA, 2.; MERCOSOJA 2002, 2002, Foz do Iguaçu. Perspectivas do agronegócio da soja: anais. Londrina: Embrapa Soja, 2002. p. 129-130. (Embrapa Soja. Documentos, 180). Organizado por Odilon Ferreira Saraiva, Clara Beatriz Hoffmann-Campo.Biblioteca(s): Embrapa Soja. |
| |
Registros recuperados : 69 | |
|
Nenhum registro encontrado para a expressão de busca informada. |
|
|