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Registro Completo |
Biblioteca(s): |
Biblioteca Rui Tendinha. |
Data corrente: |
27/09/2017 |
Data da última atualização: |
12/12/2017 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
BRANDINI, C. B.; ROCHA, J. H. T.; GODINHO, T. de O.; WENZEL, A. V. A.; GONÇALVES, J. L. M. |
Afiliação: |
ESALQ; Tiago de Oliveira Godinho, Incaper. |
Título: |
Soil C and Al availability in tropical single and mixed-species of Eucalyptus sp. and Acacia mangium plantations. |
Ano de publicação: |
2017 |
Fonte/Imprenta: |
Geoderma Regional, v. 10, p. 85-92, 2017. |
Idioma: |
Inglês |
Conteúdo: |
The Brazilian forestry sector has expanded to the Cerrado biome regions, where the soils are highly acid, with a high exchangeable Al content and a general nutritional deficiency. Nevertheless, the levels of soil organic matter (SOM) under the forest plantings are generally high and may play an important role in the complexation of Al in the soil solution. The objective of this study was to evaluate the effect of the introduction of Acacia mangium in monospecific Eucalyptus spp. plantations on the soil C content and its effect on the soil Al availability. The study was conducted at four experimental sites in São Paulo and Minas Gerais States in Brazil. We evaluated three treatments: monospecific stands (pure) of Acacia mangium and Eucalyptus and a mixed stand (constituted by Acacia mangium and Eucalyptus in 1:1 proportion), with four replicates at each site. The soil total C and the Al content in the soil solution (Als), the exchangeable Al (Ale) and the organically complexed Al (Al-OM) were determined at the soil depths of 0?5 and 5?10 cm. The introduction of Acacia in Eucalyptus plantations (mixed stand) significantly increased the soil C content by approximately 10% only at one of four sites studied, which was probably because the land was used as pasture before the introduction of the forest plantation and the because of high N input in a Eucalyptus plantation. Despite little improvement in the soil C content and consequently in the Al complexed by the soil organic matter, the introduction of Acacia in the Eucalyptus stands increased the Al availability by approximately 13% due to the reduction in the soil pH. MenosThe Brazilian forestry sector has expanded to the Cerrado biome regions, where the soils are highly acid, with a high exchangeable Al content and a general nutritional deficiency. Nevertheless, the levels of soil organic matter (SOM) under the forest plantings are generally high and may play an important role in the complexation of Al in the soil solution. The objective of this study was to evaluate the effect of the introduction of Acacia mangium in monospecific Eucalyptus spp. plantations on the soil C content and its effect on the soil Al availability. The study was conducted at four experimental sites in São Paulo and Minas Gerais States in Brazil. We evaluated three treatments: monospecific stands (pure) of Acacia mangium and Eucalyptus and a mixed stand (constituted by Acacia mangium and Eucalyptus in 1:1 proportion), with four replicates at each site. The soil total C and the Al content in the soil solution (Als), the exchangeable Al (Ale) and the organically complexed Al (Al-OM) were determined at the soil depths of 0?5 and 5?10 cm. The introduction of Acacia in Eucalyptus plantations (mixed stand) significantly increased the soil C content by approximately 10% only at one of four sites studied, which was probably because the land was used as pasture before the introduction of the forest plantation and the because of high N input in a Eucalyptus plantation. Despite little improvement in the soil C content and consequently in the Al complexed by the soil organic matte... Mostrar Tudo |
Thesaurus NAL: |
Acacia mangium; Al complexation; Al fractionation; Cerrado biome; Eucalyptus; Forests soils; Soil organic matter. |
Categoria do assunto: |
-- |
Marc: |
LEADER 02400naa a2200253 a 4500 001 1016231 005 2017-12-12 008 2017 bl uuuu u00u1 u #d 100 1 $aBRANDINI, C. B. 245 $aSoil C and Al availability in tropical single and mixed-species of Eucalyptus sp. and Acacia mangium plantations.$h[electronic resource] 260 $c2017 520 $aThe Brazilian forestry sector has expanded to the Cerrado biome regions, where the soils are highly acid, with a high exchangeable Al content and a general nutritional deficiency. Nevertheless, the levels of soil organic matter (SOM) under the forest plantings are generally high and may play an important role in the complexation of Al in the soil solution. The objective of this study was to evaluate the effect of the introduction of Acacia mangium in monospecific Eucalyptus spp. plantations on the soil C content and its effect on the soil Al availability. The study was conducted at four experimental sites in São Paulo and Minas Gerais States in Brazil. We evaluated three treatments: monospecific stands (pure) of Acacia mangium and Eucalyptus and a mixed stand (constituted by Acacia mangium and Eucalyptus in 1:1 proportion), with four replicates at each site. The soil total C and the Al content in the soil solution (Als), the exchangeable Al (Ale) and the organically complexed Al (Al-OM) were determined at the soil depths of 0?5 and 5?10 cm. The introduction of Acacia in Eucalyptus plantations (mixed stand) significantly increased the soil C content by approximately 10% only at one of four sites studied, which was probably because the land was used as pasture before the introduction of the forest plantation and the because of high N input in a Eucalyptus plantation. Despite little improvement in the soil C content and consequently in the Al complexed by the soil organic matter, the introduction of Acacia in the Eucalyptus stands increased the Al availability by approximately 13% due to the reduction in the soil pH. 650 $aAcacia mangium 650 $aAl complexation 650 $aAl fractionation 650 $aCerrado biome 650 $aEucalyptus 650 $aForests soils 650 $aSoil organic matter 700 1 $aROCHA, J. H. T. 700 1 $aGODINHO, T. de O. 700 1 $aWENZEL, A. V. A. 700 1 $aGONÇALVES, J. L. M. 773 $tGeoderma Regional$gv. 10, p. 85-92, 2017.
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Biblioteca Rui Tendinha (BRT) |
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 | 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: |
12/06/2018 |
Data da última atualização: |
12/06/2018 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 2 |
Autoria: |
KOBI, H. B.; MARTINS, M. C.; SILVA, P. I.; SOUZA, J. L. de.; CARNEIRO, J. C. S.; HELENO, F.; QUEIROZ, M. E. L. R.; COSTA, N. M. B. |
Afiliação: |
H.B. Kobi, UFES; M.C. Martins, UFES; P.I. Silva, UFES; Jacimar Luis de Souza, Incaper; J.C.S. Carneiro, UFES; F. Heleno, UFV; M.E.L.R. Queiroz, UFV; N.M.B. Costa, UFES. |
Título: |
Organic and conventional strawberries: nutritional quality, antioxidant characteristics and pesticide residues. |
Ano de publicação: |
2018 |
Fonte/Imprenta: |
Fruits, v. 73, n. 1, p. 39-47, 2018. |
DOI: |
10.17660/th2018/73.1.5 |
Idioma: |
Inglês |
Conteúdo: |
Organic farming system may affect the food composition and produce healthy foods. The aim of this study was to compare the nutritional quality, antioxidant properties and pesticide residues of organic or conventional strawberries. Materials and methods ? In a first experiment, organic and conventional fruits from the cvs. Camarosa and Albion were obtained directly from the farmers. Subsequently, ?Camarosa? was produced in organic and conventional systems, under controlled conditions. Pesticide residues were analysed in the second trial and the remaining parameters were evaluated in both experiments. Results and discussion ? In the first experiment, the fruits of organic cv. Albion showed higher moisture (91.8%) and lower total solid (8.2%), and carbohydrate (5.7%) contents. ?Albion? fruits also showed higher total solid content than ?Camarosa? fruits in conventional farming system. Pesticide residues were not detected. Under controlled conditions, organic ?Camarosa? fruits had higher moisture (91.5%) and ash (0.4%) contents, whereas conventional strawberries had higher soluble solids (8.5 °Brix), proteins (0.9%) and anthocyanins (17.7 mg 100 g-1). Residues of azoxystrobin, lambda-cyhalothrin and thiamethoxam were detected at values below the limit of detection (MenosOrganic farming system may affect the food composition and produce healthy foods. The aim of this study was to compare the nutritional quality, antioxidant properties and pesticide residues of organic or conventional strawberries. Materials and methods ? In a first experiment, organic and conventional fruits from the cvs. Camarosa and Albion were obtained directly from the farmers. Subsequently, ?Camarosa? was produced in organic and conventional systems, under controlled conditions. Pesticide residues were analysed in the second trial and the remaining parameters were evaluated in both experiments. Results and discussion ? In the first experiment, the fruits of organic cv. Albion showed higher moisture (91.8%) and lower total solid (8.2%), and carbohydrate (5.7%) contents. ?Albion? fruits also showed higher total solid content than ?Camarosa? fruits in conventional farming system. Pesticide residues were not detected. Under controlled conditions, organic ?Camarosa? fruits had higher moisture (91.5%) and ash (0.4%) contents, whereas conventional strawberries had higher soluble solids (8.5 °Brix), proteins (0.9%) and anthocyanins (17.7 mg 100 g-1). Residues of azoxystrobin, lambda-cyhalothrin and thiamethoxam were detected at values below the limit of detection (Mostrar Tudo |
Palavras-Chave: |
Morango. |
Thesaurus NAL: |
Agroecosystems; Brazil; Food safety; Fragaria × ananassa; Fruit quality; Strawberry. |
Categoria do assunto: |
-- |
Marc: |
LEADER 04542naa a2200301 a 4500 001 1020372 005 2018-06-12 008 2018 bl uuuu u00u1 u #d 024 7 $a10.17660/th2018/73.1.5$2DOI 100 1 $aKOBI, H. B. 245 $aOrganic and conventional strawberries$bnutritional quality, antioxidant characteristics and pesticide residues.$h[electronic resource] 260 $c2018 520 $aOrganic farming system may affect the food composition and produce healthy foods. The aim of this study was to compare the nutritional quality, antioxidant properties and pesticide residues of organic or conventional strawberries. Materials and methods ? In a first experiment, organic and conventional fruits from the cvs. Camarosa and Albion were obtained directly from the farmers. Subsequently, ?Camarosa? was produced in organic and conventional systems, under controlled conditions. Pesticide residues were analysed in the second trial and the remaining parameters were evaluated in both experiments. Results and discussion ? In the first experiment, the fruits of organic cv. Albion showed higher moisture (91.8%) and lower total solid (8.2%), and carbohydrate (5.7%) contents. ?Albion? fruits also showed higher total solid content than ?Camarosa? fruits in conventional farming system. Pesticide residues were not detected. Under controlled conditions, organic ?Camarosa? fruits had higher moisture (91.5%) and ash (0.4%) contents, whereas conventional strawberries had higher soluble solids (8.5 °Brix), proteins (0.9%) and anthocyanins (17.7 mg 100 g-1). Residues of azoxystrobin, lambda-cyhalothrin and thiamethoxam were detected at values below the limit of detection (650 $aAgroecosystems 650 $aBrazil 650 $aFood safety 650 $aFragaria × ananassa 650 $aFruit quality 650 $aStrawberry 653 $aMorango 700 1 $aMARTINS, M. C. 700 1 $aSILVA, P. I. 700 1 $aSOUZA, J. L. de. 700 1 $aCARNEIRO, J. C. S. 700 1 $aHELENO, F. 700 1 $aQUEIROZ, M. E. L. R. 700 1 $aCOSTA, N. M. B. 773 $tFruits$gv. 73, n. 1, p. 39-47, 2018.
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