| |
|
|
|
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
|
|
|
Registro Completo
|
Biblioteca(s): |
Embrapa Semiárido. |
|
Data corrente: |
01/03/2019 |
|
Data da última atualização: |
01/03/2019 |
|
Tipo da produção científica: |
Capítulo em Livro Técnico-Científico |
|
Autoria: |
ARAUJO, J. L. P. |
|
Afiliação: |
JOSE LINCOLN PINHEIRO ARAUJO, CPATSA. |
|
Título: |
Caracterização e avaliação econômica do feijão-caupi na mesorregião Sudeste Piauiense. |
|
Ano de publicação: |
2018 |
|
Fonte/Imprenta: |
In: TÔSTO, S. G.; BELARMINO, L. C.; CASTRO, G. S. A.; MANGABEIRA, J. A. de C.; SILVA, O. F. da (Ed.). Caracterização e avaliação econômica de sistemas de produção e cultivo de grãos em biomas brasileiros. Brasília, DF: Embrapa, 2018. |
|
Páginas: |
cap. 4, p. 69-83. |
|
Idioma: |
Português |
|
Conteúdo: |
O estudo revela que, na mesorregião Sudeste Piauiense, a exploração do feijão-caupi é desenvolvida em regime de sequeiro, mesmo composta por um reduzido número de tecnologias, em um ano de distribuição regular de chuva registra comportamento econômico-financeiro adequado. |
|
Palavras-Chave: |
Cultivo. |
|
Thesagro: |
Custo de Produção; Feijão; Grão; Indicador Econômico. |
|
Thesaurus NAL: |
Cowpeas. |
|
Categoria do assunto: |
E Economia e Indústria Agrícola |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/193638/1/Linncoln.pdf
|
|
Marc: |
LEADER 01068naa a2200205 a 4500
001 2106667
005 2019-03-01
008 2018 bl uuuu u00u1 u #d
100 1 $aARAUJO, J. L. P.
245 $aCaracterização e avaliação econômica do feijão-caupi na mesorregião Sudeste Piauiense.$h[electronic resource]
260 $c2018
300 $acap. 4, p. 69-83.
520 $aO estudo revela que, na mesorregião Sudeste Piauiense, a exploração do feijão-caupi é desenvolvida em regime de sequeiro, mesmo composta por um reduzido número de tecnologias, em um ano de distribuição regular de chuva registra comportamento econômico-financeiro adequado.
650 $aCowpeas
650 $aCusto de Produção
650 $aFeijão
650 $aGrão
650 $aIndicador Econômico
653 $aCultivo
773 $tIn: TÔSTO, S. G.; BELARMINO, L. C.; CASTRO, G. S. A.; MANGABEIRA, J. A. de C.; SILVA, O. F. da (Ed.). Caracterização e avaliação econômica de sistemas de produção e cultivo de grãos em biomas brasileiros. Brasília, DF: Embrapa, 2018.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Semiárido (CPATSA) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Expressão de busca inválida. Verifique!!! |
|
|
