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dc.contributor.author Brown, Kimberley R. en_US
dc.date.accessioned 2007-05-17T12:39:27Z
dc.date.available 2007-05-17T12:39:27Z
dc.date.issued 1997-11-01T00:00:00Z en_US
dc.identifier.uri http://hdl.handle.net/1993/1527
dc.description.abstract Cadmium is an element of concern as certain food crops can accumulate levels of Cd which are not toxic to the plant but maybe harmful to humans. Due to high concentrations of Cd currently found in some Canadian grains and oilseeds there is a need to determine the factors responsible for Cd uptake and accumulation in these crops. Two growth chamber studies were conducted to determine the effects of rates and placements of nitrogen fertilizers, including Ca(NO$\sb3)\sb2,$ urea, and (NH$\sb4)\sb2$SO$\sb4,$ on Cd concentration in durum wheat (Triticum turgidum cv. Medora). Fertilizer effects were examined on two soils, a Newdale clay loam (Orthic Black Chernozem) and a Cobfield fine loam (Gleyed Carbonated Rego Black Chernozem). A field study was conducted from 1992 to 1994 to determine the effects of fertilizer management and tillage practises on Cd concentration in crops. Durum wheat (Triticum turgidum cv. Sceptre) and canola (Brassica napus cv. Legend) were grown on two Orthic Black Chernozems, a Newdale clay loam and a Marringhurst fine sandy loam. Various commercial fertilizers were applied at 60 kg N ha$\sp{-1}$ to both crops either under conventional or zero tillage systems. (Abstract shortened by UMI.) en_US
dc.format.extent 6959074 bytes
dc.format.extent 184 bytes
dc.format.mimetype application/pdf
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dc.language en en_US
dc.language.iso en_US
dc.title Cd content of durum wheat and canola as affected by nitrogen fertilization and tillage practises en_US
dc.degree.discipline Soil Science en_US
dc.degree.level Master of Science (M.Sc.) en_US


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