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Registro Completo |
Biblioteca(s): |
Embrapa Hortaliças. |
Data corrente: |
03/05/2000 |
Data da última atualização: |
03/05/2000 |
Autoria: |
COUTO, F. A. A. |
Afiliação: |
EMBRAPA-UEPAE-Brasilia, DF. |
Título: |
Algumas contribuicoes da pesquisa ao desenvolvimento da olericultura no Brasil. |
Ano de publicação: |
1980 |
Fonte/Imprenta: |
Revista de Economia Rural, Brasilia, v.18, n.3, p.507-517, jul./set. 1980. |
Idioma: |
Português |
Palavras-Chave: |
Agricultural mechanization; Brasil; Coletotrichum gloeosporioides; Cultivar; Fertilizacao; Fungus; Nematodes; Onion. |
Thesagro: |
Adubação; Alho; Allium Cepa; Allium Sativum; Batata; Cebola; Controle Químico; Custo de Produção; Ditylenchus Dipsaci; Fungicida; Fungo; Lycopersicon Esculentum; Mecanização Agrícola; Nematóide; Pesquisa; Sclerotium Cepivorum; Semente; Solanum Tuberosum; Tomate; Variedade. |
Thesaurus Nal: |
Brazil; chemical control; fungicides; garlic; potatoes; seeds; tomatoes; varieties. |
Categoria do assunto: |
-- |
Marc: |
LEADER 01386naa a2200541 a 4500 001 1768541 005 2000-05-03 008 1980 bl uuuu u00u1 u #d 100 1 $aCOUTO, F. A. A. 245 $aAlgumas contribuicoes da pesquisa ao desenvolvimento da olericultura no Brasil. 260 $c1980 650 $aBrazil 650 $achemical control 650 $afungicides 650 $agarlic 650 $apotatoes 650 $aseeds 650 $atomatoes 650 $avarieties 650 $aAdubação 650 $aAlho 650 $aAllium Cepa 650 $aAllium Sativum 650 $aBatata 650 $aCebola 650 $aControle Químico 650 $aCusto de Produção 650 $aDitylenchus Dipsaci 650 $aFungicida 650 $aFungo 650 $aLycopersicon Esculentum 650 $aMecanização Agrícola 650 $aNematóide 650 $aPesquisa 650 $aSclerotium Cepivorum 650 $aSemente 650 $aSolanum Tuberosum 650 $aTomate 650 $aVariedade 653 $aAgricultural mechanization 653 $aBrasil 653 $aColetotrichum gloeosporioides 653 $aCultivar 653 $aFertilizacao 653 $aFungus 653 $aNematodes 653 $aOnion 773 $tRevista de Economia Rural, Brasilia$gv.18, n.3, p.507-517, jul./set. 1980.
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Embrapa Hortaliças (CNPH) |
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Registro Completo
Biblioteca(s): |
Embrapa Arroz e Feijão; Embrapa Solos. |
Data corrente: |
14/11/2018 |
Data da última atualização: |
14/12/2018 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 1 |
Autoria: |
RESENDE, M. F. de; BRASIL, T. F.; MADARI, B. E.; PEREIRA NETTO, A. D.; NOVOTNY, E. H. |
Afiliação: |
MICHELE FABRI DE RESENDE, UFF; TAILA FIGUEREDO BRASIL, UFF; BEATA EMOKE MADARI, CNPAF; ANNIBAL DUARTE PEREIRA NETTO, UFF; ETELVINO HENRIQUE NOVOTNY, CNPS. |
Título: |
Polycyclic aromatic hydrocarbons in biochar amended soils: long-term experiments in Brazilian tropical areas. |
Ano de publicação: |
2018 |
Fonte/Imprenta: |
Chemosphere, v. 200, p. 641-648, Jun. 2018. |
ISSN: |
0045-6535 |
DOI: |
10.1016/j.chemosphere.2018.02.139 |
Idioma: |
Inglês |
Conteúdo: |
The interest in charcoal for agricultural use (biochar) has sharply increased in recent years. However, biochar can contain groups of compounds such as polycyclic aromatic hydrocarbons (PAHs) that are considered persistent pollutants, and are formed concomitantly with biochar during its production by pyrolysis. Soil samples were collected in three experimental areas at different intervals (1, 3, 5 or 6 years) after the application of 16 Mg ha-1 of biochar. The total concentrations of PAHs; benzo[a]pyrene; and the estimated total cancer risk in biochar treated plots were larger than found in the control ones, but they decreased over time, equaling the control values after three years in the high C content soil (11.2 g C kg-1 soil), or after six years in the low C content soil (6.8 g C kg-1 soil). Nevertheless, the sum of PAH concentrations found in the biochar amended plots, in the range of 15.80-39.40 ng g-1, were around two orders of magnitude below the limits of prevention established by Brazilian legislation (8100 ng g-1) and some European regulations for soils (3000 ng g-1) and also lower than the observed in previous studies about biochar amended soils. Our results indicate that, under the conditions evaluated, the application of biochar to soil in the studied proportion (16 Mg ha-1, every six years) is safe concerning soil contamination by PAHs. |
Thesagro: |
Carbono; Carvão; Contaminação; Solo. |
Thesaurus NAL: |
Carbon; Charcoal; Factor analysis; Soil. |
Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
Marc: |
LEADER 02186naa a2200289 a 4500 001 2100807 005 2018-12-14 008 2018 bl uuuu u00u1 u #d 022 $a0045-6535 024 7 $a10.1016/j.chemosphere.2018.02.139$2DOI 100 1 $aRESENDE, M. F. de 245 $aPolycyclic aromatic hydrocarbons in biochar amended soils$blong-term experiments in Brazilian tropical areas.$h[electronic resource] 260 $c2018 520 $aThe interest in charcoal for agricultural use (biochar) has sharply increased in recent years. However, biochar can contain groups of compounds such as polycyclic aromatic hydrocarbons (PAHs) that are considered persistent pollutants, and are formed concomitantly with biochar during its production by pyrolysis. Soil samples were collected in three experimental areas at different intervals (1, 3, 5 or 6 years) after the application of 16 Mg ha-1 of biochar. The total concentrations of PAHs; benzo[a]pyrene; and the estimated total cancer risk in biochar treated plots were larger than found in the control ones, but they decreased over time, equaling the control values after three years in the high C content soil (11.2 g C kg-1 soil), or after six years in the low C content soil (6.8 g C kg-1 soil). Nevertheless, the sum of PAH concentrations found in the biochar amended plots, in the range of 15.80-39.40 ng g-1, were around two orders of magnitude below the limits of prevention established by Brazilian legislation (8100 ng g-1) and some European regulations for soils (3000 ng g-1) and also lower than the observed in previous studies about biochar amended soils. Our results indicate that, under the conditions evaluated, the application of biochar to soil in the studied proportion (16 Mg ha-1, every six years) is safe concerning soil contamination by PAHs. 650 $aCarbon 650 $aCharcoal 650 $aFactor analysis 650 $aSoil 650 $aCarbono 650 $aCarvão 650 $aContaminação 650 $aSolo 700 1 $aBRASIL, T. F. 700 1 $aMADARI, B. E. 700 1 $aPEREIRA NETTO, A. D. 700 1 $aNOVOTNY, E. H. 773 $tChemosphere$gv. 200, p. 641-648, Jun. 2018.
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