Changes in runoff chemistry and soil fertility after multiple years of cattle winter bale feeding on annual cropland on the Canadian prairies
Agriculture, Ecosystems & Environment(2017)
Abstract
•Feeding cattle hay bales on cropland during winter months increases soil fertility.•Export and concentration of N & P in snowmelt runoff are elevated after bale grazing.•Elevated concentrations in runoff of P, but not of N, persist in non-grazing years.•N & P runoff loss per animal unit day is similar for bale grazing & confined feeding.•Changing timing and siting of bale grazing will reduce discharge and nutrient export.
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Key words
Extensive overwintering,Bale feeding,Phosphorus,Nitrogen,Runoff
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