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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
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Liability Risks in Agri-food Supply Chains: The Case of Wet Feed AgEcon
Meuwissen, Miranda P.M.; Van Asseldonk, Marcel A.P.M.; Huirne, Ruud B.M..
Recent animal feed crises caused substantial damage throughout food supply chains and, consequently, initiated debates on the liability insurance cover of animal feed companies. In this framework, a quantitative risk analysis for wet feed producers in the Netherlands is presented. The simulation model developed is parameterised by among others data from three Dutch wet feed companies reflecting about 45% of the wet feed market in the Netherlands. The model addresses direct damage up to farm level. Default outcomes per crisis show that the number of contaminated farms is expected to be 117, with a variation from 19 farms in the 5% percentile to 331 farms in the 95% percentile. Projected direct damage per crisis is on average Euro 0.9 million, ranging from...
Tipo: Conference Paper or Presentation Palavras-chave: Contamination risk; Simulation model; Direct damage; Agribusiness.
Ano: 2008 URL: http://purl.umn.edu/44396
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