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| 1. |  | VASCONCELOS, A. A.; CRUZ, K.; WADT, L. O.; ABREU, L. F. Caracterização físico-química de amêndoas e óleos de castanha-do-brasil (Bertholletia excelsa H.B.K) provenientes do estado do Acre. In: SEMINÁRIO DE INICIAÇÃO CIENTÍFICA DA EMBRAPA AMAZÔNIA ORIENTAL, 15., 2011, Belém, PA. A ciência de fazer ciência: anais. Belém, PA: Embrapa Amazônia Oriental, 2011. 1 CD-ROM. PIBIC-2011.| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 3. | | GABRIEL, V. de A.; VASCONCELOS, A. A.; LIMA, E. F. de; CASSOLA, H.; BARRETTO, K. D.; BRITO, M. C. A importância das plantações de eucalipto na conservação da biodiversidade. Pesquisa Florestal Brasileira, Colombo, v. 33, n. 74, p. 203-213, abr./jun. 2013. Artigo de Revisão.| Biblioteca(s): Embrapa Florestas. |
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| 4. | | TAUBE, P. S.; SILVA, D. S.; VASCONCELOS, A. A.; REBELLATO, L.; MADEUREIRA, L. A. dos S.; HANSEL, F. A. Exploratory on-line pyrolysis and thermally assisted hydrolysis and methylation for evaluating non-hydrolyzable organic matter in anthropogenic soil from Central Brazilian Amazon. Brazilian Journal of Analytical Chemistry, v. 5, n. 19, p. 38-53, Jan. 2018.| Biblioteca(s): Embrapa Florestas. |
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| 5. | | VASCONCELOS, A. A.; CUNHA, R. L.; CUNHA, E. F. M.; CAMPOS, W. E. O.; TAUBE, P. S.; DANTAS FILHO, H. A. Prediction of glucose, fructose and sucrose content in Cassava (Manihot esculenta Crantz) genotypes from Amazon using PLS models. Brazilian Journal of Analytical Chemistry, v. 5, n. 19, p. 29-37, 2018.| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 6. | | VASCONCELOS, A. A.; ALVES FILHO, E. G.; RODRIGUES, T. H. S.; VIEIRA, A. F.; INNECCO, R.; SILVA, G. S.; ZOCOLO, G. J. Variability of the volatile organic compounds of Achillea millefolium L. according to the collection time, type of polyethylene packaging and storage period. Journal of the Brazilian Chemical Society, v. 31, n. 5, p.1021-1029, 2020.| Biblioteca(s): Embrapa Agroindústria Tropical. |
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| 7. | | VASCONCELOS, A. A.; DANTAS FILHO, H. A.; DANTAS, K. G. F.; GOMES, B. S.; CUNHA, R. L.; CUNHA, E. F. M.; ARAÚJO, F. C. B.; LOPES, A. S.; CAMPOS, W. E. O.; TAUBE, P. S. Determinação dos teores de Cu, Fe, Mn e Zn por FAAS em raízes de mandioca (Manihot esculenta Crantz) da Amazônia Oriental. Revista Virtual de Química, v. 9, n. 6, p. 2316-2331, 2017.| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 8. | | SANTOS, F. C. dos; FIGUEIREDO, J. E. F.; PINHEIRO, R. B.; COTA, L. V.; VASCONCELOS, A. A.; ALBUQUERQUE FILHO, M. R. de; COSTA, R. V. da; PASTINA, M. M.; ARAUJO, D. D. da S. Effects of maize genotypes, nitrogen rates and sources in yield, nutritional status, and fumonisins incidence. Brazilian Journal of Biology, v. 83, e27408, 2023.| Biblioteca(s): Embrapa Milho e Sorgo. |
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Registro Completo
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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
06/12/2005 |
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Data da última atualização: |
06/12/2005 |
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Autoria: |
BROWN, G. G.; MARTINS, P. T.; MATSUMURA, C.; SILVA, S. H. da; FERRARI, E.; PASINI, A. |
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Título: |
Growth of Pontoscolex corethururus in soils of different textures and contents of organic matter. |
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Ano de publicação: |
2005 |
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Fonte/Imprenta: |
In: ENCUENTRO LATINO-AMERICANO DE ECOLOGIA Y TAXONOMIA DE OLIGOQUETOS, 2., 2005, San Juan, Puerto Rico. [Resumenes]. San Juan, Puerto Rico: International Institute of Tropical Forestry: Fundación Puertorriqueña de Conservación, 2005. p. 38. |
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Idioma: |
Inglês |
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Conteúdo: |
Pontoscolex corethrurus is a pantropical geophagous endogenic erathworm species native to the Guyana Shield area in Northern Brazil. It is found throughout the Country, mainly in disturbed ecosystems, although it also may inhabit natural ecosystems far from its original habitat, where it must be considered an exotic invasive species. Nevertheless, the species is absent in many of the cultivated soils near Londrina, Paraná State, Brazil, where its presence could cause important modifications to soil properties. In order to evaluate the possible reasons for the absence of this species at the Embrapa Soybean experiment station, a laboratory study was conducted using the Rhodic Hapludox from the station and different amounts of added organic matter (OM; composted city organic astes) and sand. The following treatments were used: 100% soil; soil+2% (weight) OM; soil+4% OM; soil+10% OM; soil+10% sand; soil+30% sand; soil+60% sand. Mean C content os the mixtures ranged from 1.2 to 4.3% and sand contents from 8 to 76%. Each container (10 cm square plastic box) received about 140g air dry substrate, and water at 70-80% field capacity. Each box had 1 specimen and 14 replicates. The worms were cultivated for 395 d, and the substrates chnged approximately every 20 d. A negative relationship was observed beteween sand content and earthworm biomass (R² = 0,60). Worm biomass and soil C content showed a polynomial relationship (R² = 0,89), with maximum values at 2.8% C. Positive linear correlations (R² = 0,5) with soil P and Mg were also observed. Worms grew best in soil+2% OM, followed by soil+10% sand, soil+4% OM, soil 100%, and soil+30% sand. Therefore, the soil from the station was not limiting in itself and another factor must be limiting colonization of Embrapa Soybean's soils by P. corethrurus. Afetr 1 yr, only 5 worms were alive in the soil+60% sand treatment and>9 individuals in the remaining treatments. It is well known that this compacting species can cause complications to the soil's physical structure in the abscence of other bioturbating invertebrates, although it can also lead to important modifications to the soil's chemical features, generally enhancing plant nutrient availability. MenosPontoscolex corethrurus is a pantropical geophagous endogenic erathworm species native to the Guyana Shield area in Northern Brazil. It is found throughout the Country, mainly in disturbed ecosystems, although it also may inhabit natural ecosystems far from its original habitat, where it must be considered an exotic invasive species. Nevertheless, the species is absent in many of the cultivated soils near Londrina, Paraná State, Brazil, where its presence could cause important modifications to soil properties. In order to evaluate the possible reasons for the absence of this species at the Embrapa Soybean experiment station, a laboratory study was conducted using the Rhodic Hapludox from the station and different amounts of added organic matter (OM; composted city organic astes) and sand. The following treatments were used: 100% soil; soil+2% (weight) OM; soil+4% OM; soil+10% OM; soil+10% sand; soil+30% sand; soil+60% sand. Mean C content os the mixtures ranged from 1.2 to 4.3% and sand contents from 8 to 76%. Each container (10 cm square plastic box) received about 140g air dry substrate, and water at 70-80% field capacity. Each box had 1 specimen and 14 replicates. The worms were cultivated for 395 d, and the substrates chnged approximately every 20 d. A negative relationship was observed beteween sand content and earthworm biomass (R² = 0,60). Worm biomass and soil C content showed a polynomial relationship (R² = 0,89), with maximum values at 2.8% C. Positive linear corre... Mostrar Tudo |
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Categoria do assunto: |
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Marc: |
LEADER 02937naa a2200181 a 4500
001 1468625
005 2005-12-06
008 2005 bl --- 0-- u #d
100 1 $aBROWN, G. G.
245 $aGrowth of Pontoscolex corethururus in soils of different textures and contents of organic matter.
260 $c2005
520 $aPontoscolex corethrurus is a pantropical geophagous endogenic erathworm species native to the Guyana Shield area in Northern Brazil. It is found throughout the Country, mainly in disturbed ecosystems, although it also may inhabit natural ecosystems far from its original habitat, where it must be considered an exotic invasive species. Nevertheless, the species is absent in many of the cultivated soils near Londrina, Paraná State, Brazil, where its presence could cause important modifications to soil properties. In order to evaluate the possible reasons for the absence of this species at the Embrapa Soybean experiment station, a laboratory study was conducted using the Rhodic Hapludox from the station and different amounts of added organic matter (OM; composted city organic astes) and sand. The following treatments were used: 100% soil; soil+2% (weight) OM; soil+4% OM; soil+10% OM; soil+10% sand; soil+30% sand; soil+60% sand. Mean C content os the mixtures ranged from 1.2 to 4.3% and sand contents from 8 to 76%. Each container (10 cm square plastic box) received about 140g air dry substrate, and water at 70-80% field capacity. Each box had 1 specimen and 14 replicates. The worms were cultivated for 395 d, and the substrates chnged approximately every 20 d. A negative relationship was observed beteween sand content and earthworm biomass (R² = 0,60). Worm biomass and soil C content showed a polynomial relationship (R² = 0,89), with maximum values at 2.8% C. Positive linear correlations (R² = 0,5) with soil P and Mg were also observed. Worms grew best in soil+2% OM, followed by soil+10% sand, soil+4% OM, soil 100%, and soil+30% sand. Therefore, the soil from the station was not limiting in itself and another factor must be limiting colonization of Embrapa Soybean's soils by P. corethrurus. Afetr 1 yr, only 5 worms were alive in the soil+60% sand treatment and>9 individuals in the remaining treatments. It is well known that this compacting species can cause complications to the soil's physical structure in the abscence of other bioturbating invertebrates, although it can also lead to important modifications to the soil's chemical features, generally enhancing plant nutrient availability.
700 1 $aMARTINS, P. T.
700 1 $aMATSUMURA, C.
700 1 $aSILVA, S. H. da
700 1 $aFERRARI, E.
700 1 $aPASINI, A.
773 $tIn: ENCUENTRO LATINO-AMERICANO DE ECOLOGIA Y TAXONOMIA DE OLIGOQUETOS, 2., 2005, San Juan, Puerto Rico. [Resumenes]. San Juan, Puerto Rico: International Institute of Tropical Forestry: Fundación Puertorriqueña de Conservación, 2005. p. 38.
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