Use este identificador para citar ou linkar para este item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/101079
Unidade da Embrapa/Coleção:: Área de Informação da Sede - Artigo em periódico indexado (ALICE)
Data do documento: 10-Jan-2000
Tipo do Material: Artigo em periódico indexado (ALICE)
Autoria: FUSCALDO, F.
BEDMAR, F.
MONTERUBBIANESE, G.
Título: Persistence of atrazine, metribuzin and simazine herbicides in two soils.
Edição: 1999
Fonte/Imprenta: Pesquisa Agropecuaria Brasileira, Brasilia, v.34, n.11, p.2037-44, nov. 1999.
Idioma: en
Palavras-chave: Oat
Organic matter
pH
Herbicide rates
Biossay
Aveia
Materia organica
Doses de herbicidas
Bioensaio
Conteúdo: An oat biossay was conducted in pots under greenhouse conditions to determine the persistence of atrazine, metribuzin and simazine herbicides in soils of the Southeast of Buenos Aires Province, Argentina. A trazine rates of 0, 0.58, 1.16 and 2.32 ug g-1 of active ingredient (a.i), metribuzin rates of 0, 0.14, 0.28 and 0.56 ug g-1 of a.i., and simazine rates of 0, 0.72, 1.45 and 2.9 ug g-1 of a.i. were applied to pots containing soils from Balcarce and San Cayetano sites. Organic matter (OM) content and pH of Balcarce soil were 5.5% and 5.8, while for san Cayetano soil were 2.9% and 6.7, respectively. Relative dry weight (RDW) of oat shoots was calculated as percentage of control. Considering a 20% RDW reduction of oat shoots, persistences of recommended rates for the region were: atrazine (1.16 ug g-1 of a.i), 78 and 130 days after treatment (DAT) for Balcarce and San Cayetano soil, respectively; metribuzin (0.28 ug g-1 of a.i), 63 and 77 DAT for Balcarce and San Cayetano soil, respectively; simazine (1.45 ug g-1 of a.i), 81 and 156 DAT for Balcarce and San Cayetano soil, respectively. Results show that persistence of atrazine, metribuzin and simazine in soil increased with high rates, low OM content and high pH.
Ano de Publicação: 1999
Aparece nas coleções:Artigo em periódico indexado (AI-SEDE) / Embrapa Informação Tecnológica (SCT)

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