| |
|
|
| Registros recuperados : 25 | |
| 8. |  | SPERA, M. R. N.; CUNHA, R. da; TEIXEIRA, J. B. Quebra de dormência, viabilidade e conservação de sementes de buriti (Mauritia flexuosa). Pesquisa Agropecuária Brasileira, Brasília, DF, v. 36, n. 12, p. 1567-1572, dez. 2001 Notas Científicas.
Título em inglês: Dormancy breaking, viability and conservation of Mauritia flexuosa seeds.| Biblioteca(s): Embrapa Unidades Centrais. |
|    |
| 12. | | CUNHA, R. da; SANTANA, C. A. F. de; CARDOSO, M. A.; PEREIRA, T. S. Secagem, desinfestacao e germinacao de sementes de Couroupita guyanensis Aubl. Revista Brasileira de Semente, Brasilia, v.12, n.2, p.75-79, 1990.| Biblioteca(s): Embrapa Recursos Genéticos e Biotecnologia. |
| |
| 17. | | EIRA, M. T. S.; SALOMAO, A. N.; CUNHA, R. da; CARRARA, D. K.; MELLO, C. M. C. Efeito do teor de agua sobre a germinacao de sementes de Araucaria angustifolia (Bert.). O. Ktze - Araucariaceae. Revista Brasileira de Sementes, Brasilia, v.16, n.1, p.71-75, 1994.| Biblioteca(s): Embrapa Florestas. |
| |
| 18. | | EIRA, M. T. S.; SALOMAO, A. N.; CUNHA, R. da; CARRARO, D. K.; MELLO, C. M. C. Efeito do teor de agua sobre a germinacao de sementes de Araucaria angustifolia (Bert.) O. Ktze - Araucariaceae. Revista Brasileira de Semente, Brasilia, v.16, n.1, p.71-75, 1994.| Biblioteca(s): Embrapa Recursos Genéticos e Biotecnologia. |
| |
| 19. | | EIRA, M. T. S.; SALOMAO, A. N.; CUNHA, R. da; MELLO, C. M. C. de; TANAKA, D. M. Conservacao de sementes de Copaifera langsdorffii Desf. Leguminosae. Revista do Instituto Florestal, Sao Paulo, v.4, p.523-526, 1992. Ed. especial. Apresentado no 2º Congresso Nacional Sobre Essências Nativas, São Paulo, SP, 1992.| Biblioteca(s): Embrapa Florestas; Embrapa Recursos Genéticos e Biotecnologia. |
| |
| 20. | | EIRA, M. T. S.; SALOMAO, A. N.; CUNHA, R. da; MELLO, C. M. C. de; TANAKA, D. M. Conservacao de sementes de Copaifera langstorfii Desf. Leguminosae. Revista do Instituto Florestal, Sao Paulo, v.4, parte 2, p.523-526, 1992. Trabalho apresentado no 2o. Congresso Nacional sobre Essencias Nativas, Sao Paulo, 1992.| Biblioteca(s): Embrapa Cerrados. |
| |
| Registros recuperados : 25 | |
|
|
|
Registro Completo
|
Biblioteca(s): |
Embrapa Amazônia Oriental. |
|
Data corrente: |
05/12/2013 |
|
Data da última atualização: |
20/10/2022 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Circulação/Nível: |
C - 0 |
|
Autoria: |
CASTRO, R. M. da S.; RUIVO, M. de L. P.; PICCININ, J. L.; RODRIGUES, E. F. |
|
Afiliação: |
ROSECÉLIA MOREIRA DA SILVA CASTRO, UFRA; MARIA DE LOURDES PINHEIRO RUIVO, MPEG; JORGE LUIZ PICCININ, MPEG; ERALDO FERREIRA RODRIGUES, CPATU. |
|
Título: |
Influence of the rainfall in the content of nutrients in litter in agroforestry systems managed with burning and without burning in Amazon. |
|
Ano de publicação: |
2013 |
|
Fonte/Imprenta: |
Agricultural Sciences, v. 4, n. 11A, p. 26-36, Nov. 2013. |
|
DOI: |
10.4236/as.2013.411A004 |
|
Idioma: |
Inglês |
|
Conteúdo: |
This study evaluated the nutrient content of the litter, testing different treatments with burning and no burning, of the vegetation, to identify which one provides better efficiency in operation and production of nutrients in different seasonal conditions. The study area is located on the property of the family farmer, initially selected by a diagnosis socioeconomic, community Benjamin Constant, in northeastern Para. Litter was collected during two periods: dry season (November) and rainy (March) in 2009. For the collection of litter samples, we used collectors measuring (0.25 × 0.25 m2), which were placed directly on the soil surface. The collected material was stored in paper bags and taken to the laboratory for Chemical Analysis of the Brazilian Agricultural Research Corporation (EMBRAPA), which was determined by analyses of macronutrients (N, P, K, Ca, Mg, Na) and micronutrients (Fe, Cu, Mn, Zn). The highest concentrations of macronutrients were found in N for agroforestry systems with and without burning in two seasons (wet and dry). All macronutrients showed influence of seasonality, which was verified by the wide variation in nutritional behavior. The decreasing concentration of nutrients was presented N > Ca > Mg > Na > K > P in agroforestry system with burning, with maximum values of all nutrients in the rainy season, and N, P, K, Ca, Na in higher concentrations in agroforestry system without burning, and showed only the Mg peak in agroforestry system with burning. The behavior of the concentration of nutrients was opposite to that observed one, for all elements analyzed showed a reduction in the concentrations of nutrients in the dry season. The decreasing concentration of nutrients was presented Fe > Mn > Zn > Cu. MenosThis study evaluated the nutrient content of the litter, testing different treatments with burning and no burning, of the vegetation, to identify which one provides better efficiency in operation and production of nutrients in different seasonal conditions. The study area is located on the property of the family farmer, initially selected by a diagnosis socioeconomic, community Benjamin Constant, in northeastern Para. Litter was collected during two periods: dry season (November) and rainy (March) in 2009. For the collection of litter samples, we used collectors measuring (0.25 × 0.25 m2), which were placed directly on the soil surface. The collected material was stored in paper bags and taken to the laboratory for Chemical Analysis of the Brazilian Agricultural Research Corporation (EMBRAPA), which was determined by analyses of macronutrients (N, P, K, Ca, Mg, Na) and micronutrients (Fe, Cu, Mn, Zn). The highest concentrations of macronutrients were found in N for agroforestry systems with and without burning in two seasons (wet and dry). All macronutrients showed influence of seasonality, which was verified by the wide variation in nutritional behavior. The decreasing concentration of nutrients was presented N > Ca > Mg > Na > K > P in agroforestry system with burning, with maximum values of all nutrients in the rainy season, and N, P, K, Ca, Na in higher concentrations in agroforestry system without burning, and showed only the Mg peak in agroforestry system with burning.... Mostrar Tudo |
|
Palavras-Chave: |
Queima; Sazonalidade; Sistema agroflorestal. |
|
Thesagro: |
Ecossistema; Floresta; Serapilheira. |
|
Thesaurus NAL: |
Amazonia. |
|
Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/93545/1/ArtigoEraldo2013.pdf
|
|
Marc: |
LEADER 02563naa a2200253 a 4500
001 1972952
005 2022-10-20
008 2013 bl uuuu u00u1 u #d
024 7 $a10.4236/as.2013.411A004$2DOI
100 1 $aCASTRO, R. M. da S.
245 $aInfluence of the rainfall in the content of nutrients in litter in agroforestry systems managed with burning and without burning in Amazon.$h[electronic resource]
260 $c2013
520 $aThis study evaluated the nutrient content of the litter, testing different treatments with burning and no burning, of the vegetation, to identify which one provides better efficiency in operation and production of nutrients in different seasonal conditions. The study area is located on the property of the family farmer, initially selected by a diagnosis socioeconomic, community Benjamin Constant, in northeastern Para. Litter was collected during two periods: dry season (November) and rainy (March) in 2009. For the collection of litter samples, we used collectors measuring (0.25 × 0.25 m2), which were placed directly on the soil surface. The collected material was stored in paper bags and taken to the laboratory for Chemical Analysis of the Brazilian Agricultural Research Corporation (EMBRAPA), which was determined by analyses of macronutrients (N, P, K, Ca, Mg, Na) and micronutrients (Fe, Cu, Mn, Zn). The highest concentrations of macronutrients were found in N for agroforestry systems with and without burning in two seasons (wet and dry). All macronutrients showed influence of seasonality, which was verified by the wide variation in nutritional behavior. The decreasing concentration of nutrients was presented N > Ca > Mg > Na > K > P in agroforestry system with burning, with maximum values of all nutrients in the rainy season, and N, P, K, Ca, Na in higher concentrations in agroforestry system without burning, and showed only the Mg peak in agroforestry system with burning. The behavior of the concentration of nutrients was opposite to that observed one, for all elements analyzed showed a reduction in the concentrations of nutrients in the dry season. The decreasing concentration of nutrients was presented Fe > Mn > Zn > Cu.
650 $aAmazonia
650 $aEcossistema
650 $aFloresta
650 $aSerapilheira
653 $aQueima
653 $aSazonalidade
653 $aSistema agroflorestal
700 1 $aRUIVO, M. de L. P.
700 1 $aPICCININ, J. L.
700 1 $aRODRIGUES, E. F.
773 $tAgricultural Sciences$gv. 4, n. 11A, p. 26-36, Nov. 2013.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Amazônia Oriental (CPATU) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Nenhum registro encontrado para a expressão de busca informada. |
|
|
