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dc.contributor.authorQian, P.
dc.contributor.authorSchoenau, J.J.
dc.contributor.authorCowell, L.E.
dc.contributor.authorDennis, L.
dc.description.abstractA simple method was developed to assess the variability in nutrient availability in undulating landscapes using anion-exchange resin strip burial. Resin strips were buried in ten farm fields along transects at points in the landscape representing different landform elements present within the field. In all ten fields, strips were buried for one hour. In two of the fields, in addition to a one hour burial, another set of resin strips was buried and allowed to remain in the soil for two weeks. After burial, resin strips were removed and the nitrate accumulated on the strips was measured. Large variations in nutrient availability as predicted by resin strip burial were observed in the landscapes. The differences were closely related to the landscape position and landform element with the highest levels of available nitrate observed at lower slope positions where deposition of eroded soil has occurred. Two week burials revealed that mineralization contributes significantly to available nitrate in the soil. Resin strip burial appears to be a suitable tool for evaluating variations in nutrient availability in different landscape positions of a field.en_US
dc.relation.ispartofSoils and Crops Workshop
dc.rightsAttribution-NonCommercial-NoDerivs 2.5 Canada*
dc.subjectlandscape variabilityen_US
dc.subjection-exchange resinen_US
dc.subjectresidual NO3-Nen_US
dc.subjectN mineralizationen_US
dc.titleAssessing nutrient availability variations in landscapesen_US
dc.typePoster Presentationen_US
dc.description.versionNon-Peer Reviewed

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Attribution-NonCommercial-NoDerivs 2.5 Canada
Except where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivs 2.5 Canada