Data/hora: 18/06/2024 02:45:40

Provedor de dados: | 86
País: | Brazil
Título: | Influence of repeated applications of glyphosate on its persistence and soil bioactivity
Autores: | Andréa,Mara Mercedes de; Peres,Terezinha Bonanho; Luchini,Luiz Carlos; Bazarin,Sheila; Papini,Solange; Matallo,Marcus Barifouse; Savoy,Vera Lucia Tedeschi.
Data: | 2003-11-01
Ano: | 2003
Palavras-chave: | Pesticide residues; Mineralization; Dehydrogenases; Soil treatment.
Resumo: | Pesticide degradation studies are essential to evaluate its impact in the environment and on non-target organisms. The effect of repeated soil applications of the herbicide glyphosate on its dissipation and on soil microorganisms was studied by radiometric and microbial techniques. Results indicated fast dissipation of the [14C]-glyphosate or [14C]metabolites extractable residues (half-life of 0.92±0.29 month), but increasing half-lives of total mineralization ranging from 2.2 to 3.4 months as the number of applications increased from 1 to 4. No significant correlation was found between 14CO2 production and dehydrogenase activity.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2003001100012

Editor:

Embrapa Secretaria de Pesquisa e Desenvolvimento

Pesquisa Agropecuária Brasileira

Relação: | 10.1590/S0100-204X2003001100012
Formato: | text/html
Fonte: | Pesquisa Agropecuária Brasileira  v.38 n.11 2003
Fonte: | info:eu-repo/semantics/openAccess