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	Provedor de dados Chilean J. Agric. Res. (2) Autor Hang,Susana (2) Andriulo,Adrián (1) Barriuso,Enrique (1) Cañas,Ana I (1) Nassetta,Mirtha M (1) Portela,Silvina (1) Rampoldi,Ariel (1) Sasal,Carolina (1) Mais... Palavra-chave Atrazine extractable residues (1) Contamination risk (1) Glyphosate (1) Half-life (1) Mineralization (1) Non-tillage system (1) Preferential flow (1) Stubbles (1) Total microbial activity (1) Mais... Tipo do documento Journal article (2) Ano 2010 (1) 2008 (1) País Chile (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Glyphosate Mineralization: Effect of Temperature and Soybean and Corn Crop Residues Chilean J. Agric. Res. Rampoldi,Ariel; Hang,Susana; Barriuso,Enrique. Mineralization is the main mechanism of dissipation of glyphosate herbicide (N-[phosphonomethyl] glycine) in soil. However, there is scarce information about the mineralization process in strata formed by stubbles in no-tillage systems. The kinetics and rate of mineralization of herbicide in stubbles of soybean (Glycine max L. Merr.) and corn (Zea mays L.) were investigated. To evaluate the effect of age of crop residues, samples of soybean stubbles were collected immediately after harvest (Soja 1) and four months after harvest (Soja 2). Corn crop residues were collected three months after harvest. Glyphosate evolution and total microbial activity (TMA) were monitored by release of 14C-CO2 and C-CO2 under laboratory conditions with two temperatures, 15 and... Tipo: Journal article Palavras-chave: Glyphosate; Stubbles; Mineralization; Non-tillage system; Total microbial activity. Ano: 2008 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392008000100002 Integral Study of Atrazine Behaviour in Field Lysimeters in Argentinean Humid Pampas Soils Chilean J. Agric. Res. Hang,Susana; Andriulo,Adrián; Sasal,Carolina; Nassetta,Mirtha M; Portela,Silvina; Cañas,Ana I. Atrazine behavior during crop maize (Zea mays L.) production in soils of Argentine humid pampas was investigated. Lysimeters (3.3 x 3.3 x 1.4 m) with a Typic Argiudoll (Pergamino) and others with a Typic Hapludoll (Junín) were monitored for drainage water content and atrazine concentrations in soil and water. Soil profiles were sampled in four depths in three dates, and water drainage pooled in four periods. Most of atrazine loss in drainage occurred within 30 d of atrazine application being 0.13% and 0.03% of the total atrazine applied for Pergamino and Junín, respectively. Under laboratory conditions half-life average in both profiles was 16 d. Atrazine extractable residues (AER) in lysimeters showed differences in quantity and distribution between both... Tipo: Journal article Palavras-chave: Atrazine extractable residues; Preferential flow; Half-life; Contamination risk. Ano: 2010 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392010000100011 Registros recuperados: 2 Primeira ... 1 ... Última

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