| |
|
|
 | 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 |
Voltar
|
|
|
| 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: |
20/09/2016 |
|
Data da última atualização: |
18/07/2019 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Circulação/Nível: |
A - 2 |
|
Autoria: |
MORI, A. L. B.; KALSCHNE, D. L.; FERRÃO, M. A. G.; FONSECA, A. F. A. da.; FERRÃO, R. G.; BENASSI, M. de T. |
|
Afiliação: |
André Luiz Buzzo Mori, Universidade Estadual de Londrina; Daneysa Lahis Kalschne, Universidade Estadual de Londrina; Maria Amélia Gava Ferrão, Incaper/Embrapa Café; Aymbiré Francisco Almeida da Fonseca, Incaper/Embrapa Café; Romário Gava Ferrão, Incaper; Marta de Toledo Benassi, Universidade Estadual de Londrina. |
|
Título: |
Diterpenes in Coffea canephora. |
|
Ano de publicação: |
2016 |
|
Fonte/Imprenta: |
JOURNAL OF FOOD COMPOSITION AND ANALYSIS, v. 52, p. 52-57, 2016. |
|
Idioma: |
Inglês |
|
Conteúdo: |
The presence of diterpenes in coffee has received a great deal of attention in recent years, due to their physiological effects on human health. Some studies related to kahweol and cafestol contents in Coffea arabica are available in the literature; however, information on the impact of genetic variability on the profile of diterpenes in Coffea canephora is scarce. This work evaluates the contents of kahweol, cafestol and 16-O-methylcafestol in 15 genotypes of C. canephora. Coffees corresponded to three cultivars ? Diamante ES8112, ES8122 ?Jequitibá? and Centenária ES8132 ? with different fruit-ripening seasons (early, medium and late). Coffees were grown at two locations in the state of Espírito Santo, the largest C. canephora growing region in Brazil, resulting in 30 samples. Kahweol was absent in 70% of the samples and the highest content observed was 14.1 mg 100 g?1 in the Jequitibá cultivar. Cafestol was present in all samples and it was the main representative of the diterpene class, with contents varying from 152 mg 100 g?1 to 360 mg 100 g?1. Contents of 16-O-methylcafestol varied from 26.3 mg 100 g?1 to 132 mg 100 g?1. A significant difference among genotypes was observed, and there was an interaction between genotypes and growing site for the three diterpenes studied. |
|
Palavras-Chave: |
Café conilon. |
|
Thesaurus NAL: |
Cafestol; Centenária ES8132; Coffea canephora; Diamante ES8112; ES8122 Jequitibá; Food analysis; Food composition; Kahweol. |
|
Categoria do assunto: |
G Melhoramento Genético |
|
Marc: |
LEADER 02089naa a2200289 a 4500
001 1012146
005 2019-07-18
008 2016 bl uuuu u00u1 u #d
100 1 $aMORI, A. L. B.
245 $aDiterpenes in Coffea canephora.$h[electronic resource]
260 $c2016
520 $aThe presence of diterpenes in coffee has received a great deal of attention in recent years, due to their physiological effects on human health. Some studies related to kahweol and cafestol contents in Coffea arabica are available in the literature; however, information on the impact of genetic variability on the profile of diterpenes in Coffea canephora is scarce. This work evaluates the contents of kahweol, cafestol and 16-O-methylcafestol in 15 genotypes of C. canephora. Coffees corresponded to three cultivars ? Diamante ES8112, ES8122 ?Jequitibá? and Centenária ES8132 ? with different fruit-ripening seasons (early, medium and late). Coffees were grown at two locations in the state of Espírito Santo, the largest C. canephora growing region in Brazil, resulting in 30 samples. Kahweol was absent in 70% of the samples and the highest content observed was 14.1 mg 100 g?1 in the Jequitibá cultivar. Cafestol was present in all samples and it was the main representative of the diterpene class, with contents varying from 152 mg 100 g?1 to 360 mg 100 g?1. Contents of 16-O-methylcafestol varied from 26.3 mg 100 g?1 to 132 mg 100 g?1. A significant difference among genotypes was observed, and there was an interaction between genotypes and growing site for the three diterpenes studied.
650 $aCafestol
650 $aCentenária ES8132
650 $aCoffea canephora
650 $aDiamante ES8112
650 $aES8122 Jequitibá
650 $aFood analysis
650 $aFood composition
650 $aKahweol
653 $aCafé conilon
700 1 $aKALSCHNE, D. L.
700 1 $aFERRÃO, M. A. G.
700 1 $aFONSECA, A. F. A. da.
700 1 $aFERRÃO, R. G.
700 1 $aBENASSI, M. de T.
773 $tJOURNAL OF FOOD COMPOSITION AND ANALYSIS$gv. 52, p. 52-57, 2016.
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!!! |
|
|
