Research Article
Surface-Applied Biosolids Enhance Soil Organic Carbon and Nitrogen Stocks but Have Contrasting Effects on Soil Physical Quality
Table 1
Minimum, maximum, and mean concentrations for selected biosolids constituents and total loading of dry matter (DM) and by constituent based on treatment rate, application area, and years of application (adapted from [17]).
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Annual applications in this treatment reduced to biennial applications of 5 Mg ha−1 yr−1 in 2007. ‡Environmental Protection Agency (EPA) or Standard Methods (SM) protocols used to quantify each constituent, in order listed: SW846 9060A; EPA 351.2; SM 4500-P BE; EPA 6020; SM 4500-H; EPA 9045D; SM 2540G. |