|
|
| Acesso ao texto completo restrito à biblioteca da Biblioteca Rui Tendinha. Para informações adicionais entre em contato com biblioteca@incaper.es.gov.br. |
Registro Completo |
Biblioteca(s): |
Biblioteca Rui Tendinha. |
Data corrente: |
05/01/2015 |
Data da última atualização: |
23/04/2015 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
THOMAZINI, A.; MENDONÇA, E. S.; SOUZA, J. L. de.; CARDOSO, I. M.; GARBIN, M. L. |
Afiliação: |
Jacimar Luis de Souza, Incaper. |
Título: |
Impact of organic no-till vegetables systems on soil organic matter in the Atlantic Forest biome. |
Ano de publicação: |
2015 |
Fonte/Imprenta: |
Scientia Horticulturae, Vol. 182, p. 145-155, 23 january 2015. |
Idioma: |
Inglês |
Conteúdo: |
Soil organic matter is widely recognized as a strategy used to improve soil quality and reduce carbon emissions to the atmosphere. A field study was carried out to investigate the effects of cover crops in organic no-till vegetables systems on changes in soil organic matter and CO2single bondC emissions, in dry and rainy seasons. We hypothesized that CO2single bondC emissions are higher in conventional till as compared with no-till, and that no-till increases soil C sink. The crop rotation comprised a 3-year cropping sequence involving two crops per year?cabbage (Brassica oleracea L.) in winter and eggplant (Solanum melongena L.) in summer time. Treatments were no-till on dead mulch of grass (Avena strigosa Schreb. and Zea mays L.), leguminous (Lupinus albus L. and Crotalaria juncea L.), intercrop (grass and leguminous) and conventional till (no dead mulch) with rotary hoe arranged in a randomized block design on a clayey Oxisol (Typic Haplustox) at Domingos Martins-ES, Brazil. On 2012 and 2013, disturbed soil samples at three different layers (0?5, 5?15 and 15?30 cm) and undisturbed samples at 0?10, 10?20 and 20?30 cm, for chemical and organic matter characterization were taken. CO2single bondC emissions and soil temperature were measured in situ on March, May, August and October 2012 and February 2013 (after 3 years of experiment). Conventional till site showed the lowest microporosity values and the highest macroporosity, followed by lower soil bulk density at 0?10 cm layer. Total organic C ranged from 34.94 to 50.48 g kg?1 in intercrop and 27.11 to 43.74 g kg?1 in conventional till. Total N ranged from 2.81 to 5.34 g kg?1 in grass and 2.54 to 4.51 g kg?1 in conventional till. Highest C stock was recorded in intercrop. Conventional till showed lower labile C values while recalcitrant C was higher in the intercrop treatment. The annual average of CO2single bondC emissions (?mol CO2 m?2 s?1) followed the order: grass (15.89) > intercrop (13.77) > leguminous (13.09) > conventional till (11.20). Highest annual average of soil temperature was recorded in conventional till (23.95 °C). Lowest annual mean of soil water content, microbial biomass C, and highest metabolic quotient were recorded in conventional till. These results suggest that the use of cover crops and organic compost in pre-planting promote C increments. The contribution of organic residues increases the water holding capacity and reduces soil temperature. No-till reduces soil disturbance and promotes a positive balance of C. Organic no-till vegetable systems is a strategy to increase soil C and should be encouraged in order to increase soil quality in the Atlantic Forest Biome in Brazil. MenosSoil organic matter is widely recognized as a strategy used to improve soil quality and reduce carbon emissions to the atmosphere. A field study was carried out to investigate the effects of cover crops in organic no-till vegetables systems on changes in soil organic matter and CO2single bondC emissions, in dry and rainy seasons. We hypothesized that CO2single bondC emissions are higher in conventional till as compared with no-till, and that no-till increases soil C sink. The crop rotation comprised a 3-year cropping sequence involving two crops per year?cabbage (Brassica oleracea L.) in winter and eggplant (Solanum melongena L.) in summer time. Treatments were no-till on dead mulch of grass (Avena strigosa Schreb. and Zea mays L.), leguminous (Lupinus albus L. and Crotalaria juncea L.), intercrop (grass and leguminous) and conventional till (no dead mulch) with rotary hoe arranged in a randomized block design on a clayey Oxisol (Typic Haplustox) at Domingos Martins-ES, Brazil. On 2012 and 2013, disturbed soil samples at three different layers (0?5, 5?15 and 15?30 cm) and undisturbed samples at 0?10, 10?20 and 20?30 cm, for chemical and organic matter characterization were taken. CO2single bondC emissions and soil temperature were measured in situ on March, May, August and October 2012 and February 2013 (after 3 years of experiment). Conventional till site showed the lowest microporosity values and the highest macroporosity, followed by lower soil bulk density at 0?10 cm lay... Mostrar Tudo |
Palavras-Chave: |
Green manure; Labile and stable fractions; Soil C balance; Soil health. |
Categoria do assunto: |
-- |
Marc: |
LEADER 03364naa a2200217 a 4500 001 1004772 005 2015-04-23 008 2015 bl uuuu u00u1 u #d 100 1 $aTHOMAZINI, A. 245 $aImpact of organic no-till vegetables systems on soil organic matter in the Atlantic Forest biome.$h[electronic resource] 260 $c2015 520 $aSoil organic matter is widely recognized as a strategy used to improve soil quality and reduce carbon emissions to the atmosphere. A field study was carried out to investigate the effects of cover crops in organic no-till vegetables systems on changes in soil organic matter and CO2single bondC emissions, in dry and rainy seasons. We hypothesized that CO2single bondC emissions are higher in conventional till as compared with no-till, and that no-till increases soil C sink. The crop rotation comprised a 3-year cropping sequence involving two crops per year?cabbage (Brassica oleracea L.) in winter and eggplant (Solanum melongena L.) in summer time. Treatments were no-till on dead mulch of grass (Avena strigosa Schreb. and Zea mays L.), leguminous (Lupinus albus L. and Crotalaria juncea L.), intercrop (grass and leguminous) and conventional till (no dead mulch) with rotary hoe arranged in a randomized block design on a clayey Oxisol (Typic Haplustox) at Domingos Martins-ES, Brazil. On 2012 and 2013, disturbed soil samples at three different layers (0?5, 5?15 and 15?30 cm) and undisturbed samples at 0?10, 10?20 and 20?30 cm, for chemical and organic matter characterization were taken. CO2single bondC emissions and soil temperature were measured in situ on March, May, August and October 2012 and February 2013 (after 3 years of experiment). Conventional till site showed the lowest microporosity values and the highest macroporosity, followed by lower soil bulk density at 0?10 cm layer. Total organic C ranged from 34.94 to 50.48 g kg?1 in intercrop and 27.11 to 43.74 g kg?1 in conventional till. Total N ranged from 2.81 to 5.34 g kg?1 in grass and 2.54 to 4.51 g kg?1 in conventional till. Highest C stock was recorded in intercrop. Conventional till showed lower labile C values while recalcitrant C was higher in the intercrop treatment. The annual average of CO2single bondC emissions (?mol CO2 m?2 s?1) followed the order: grass (15.89) > intercrop (13.77) > leguminous (13.09) > conventional till (11.20). Highest annual average of soil temperature was recorded in conventional till (23.95 °C). Lowest annual mean of soil water content, microbial biomass C, and highest metabolic quotient were recorded in conventional till. These results suggest that the use of cover crops and organic compost in pre-planting promote C increments. The contribution of organic residues increases the water holding capacity and reduces soil temperature. No-till reduces soil disturbance and promotes a positive balance of C. Organic no-till vegetable systems is a strategy to increase soil C and should be encouraged in order to increase soil quality in the Atlantic Forest Biome in Brazil. 653 $aGreen manure 653 $aLabile and stable fractions 653 $aSoil C balance 653 $aSoil health 700 1 $aMENDONÇA, E. S. 700 1 $aSOUZA, J. L. de. 700 1 $aCARDOSO, I. M. 700 1 $aGARBIN, M. L. 773 $tScientia Horticulturae, Vol. 182, p. 145-155, 23 january 2015.
Download
Esconder MarcMostrar Marc Completo |
Registro original: |
Biblioteca Rui Tendinha (BRT) |
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
|
Registro Completo |
Biblioteca(s): |
Biblioteca Rui Tendinha. |
Data corrente: |
24/02/2016 |
Data da última atualização: |
31/03/2016 |
Autoria: |
FEITOSA, C. de O. B; FONSECA, O. B. da. |
Título: |
Coletânea de resumos de trabalhos técnico-científicos da EMCAPA. |
Ano de publicação: |
1996 |
Fonte/Imprenta: |
Vitoria: EMCAPA, 1996 |
Páginas: |
316 p. |
Série: |
(EMCAPA. Documentos, 92). |
ISSN: |
0101-8949 |
Idioma: |
Português |
Conteúdo: |
Cultura de tecidos; Diversos; Economia; Entomologia; Estatistica; Fitopatologia; Fitotecnia; Culturas anuais; Culturas perenes; Fruticultura; Olericultura; Residuos de pesticida; Sementes; Silvicultura; Solos e nutricao; Zootecnia. |
Palavras-Chave: |
Agricultura; Agropecuaria; Brasil; Coletanea; EMCAPA; Espirito Santo; Publicações científicas. |
Categoria do assunto: |
-- |
URL: |
http://biblioteca.incaper.es.gov.br/digital/bitstream/item/1492/1/BRT-doc92-coletaneaderesumosdetrabalhostecnicoscientificos-Emcapa.pdf
|
Marc: |
LEADER 00880nam a2200241 a 4500 001 1009945 005 2016-03-31 008 1996 bl uuuu 00u1 u #d 022 $a0101-8949 100 1 $aFEITOSA, C. de O. B 245 $aColetânea de resumos de trabalhos técnico-científicos da EMCAPA.$h[electronic resource] 260 $aVitoria: EMCAPA$c1996 300 $a316 p. 490 $a(EMCAPA. Documentos, 92). 520 $aCultura de tecidos; Diversos; Economia; Entomologia; Estatistica; Fitopatologia; Fitotecnia; Culturas anuais; Culturas perenes; Fruticultura; Olericultura; Residuos de pesticida; Sementes; Silvicultura; Solos e nutricao; Zootecnia. 653 $aAgricultura 653 $aAgropecuaria 653 $aBrasil 653 $aColetanea 653 $aEMCAPA 653 $aEspirito Santo 653 $aPublicações científicas 700 1 $aFONSECA, O. B. da.
Download
Esconder MarcMostrar Marc Completo |
Registro original: |
Biblioteca Rui Tendinha (BRT) |
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
Expressão de busca inválida. Verifique!!! |
|
|