Solids
Rec. Methods of Manure Analysis; Overnight at 105°C
Volatile Solids
Standard Methods; Ash at 550°C
Total Nitrogen
Rec. Methods of Manure Analysis; Combustion
Ammonia Nitrogen
Rec. Methods of Manure Analysis;Titration
Minerals
Rec. Methods of Manure Analysis; Acid digestion, ICP, (P, K, Ca, Mg, Na, Fe, Mn, Zn, Cu)
Water Soluble Phosphorus
Rec. Methods of Manure Analysis; 1:100 solids:water
Carbon
Leco Application Note; Combustion
pH
Rec. Methods of Manure Analysis; Electrode
References
Peters, J., et al. Recommended Methods of Manure Analysis (A3769). Board of Regents of the University of Wisconsin System, Cooperative Extension Publishing Operations. 2003.
Kleinman, P., et al. Selection of a water extractable phosphorus test for manures and biosolids as an indicator of runoff loss potential. J. Environmental Quality. 36:1357-1367.
Standard Methods for the Examination of Water and Wastewater. 1992. 18th Edition, American Public Health Association, 1015 Fifteenth Street, NW, Washington , DC 20005.