Biosolids application to no-till dryland crop rotations, 2013 results
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Biosolids recycling on dryland winter wheat (Triticum aestivum, L.) can supply a reliable, slow-release source of nitrogen (N) (Barbarick et al., 1992). Barbarick and Ippolito (2000, 2007) found that continuous application of biosolids from the Littleton/Englewood, CO wastewater treatment facility to dryland winter wheat-fallow rotation provides about 16 lbs N per dry ton. This research involved tilling the biosolids into the top 8 inches of soil. A question related to soil management in a biosolids beneficial-use program is: How much N would be available if the biosolids were surface-applied ...