List of the standard manure testing methods used by the Agricultural Analytical Services Lab.
Analyte | Method | Reference |
---|---|---|
% Solids, (Dry weight) | Dried at 105 C, Overnight | Hoskins, B, A. Wolf, and N. Wolf. 2003. Dry matter analysis. In: J. Peters et al. (eds.) Recommended methods of manure analysis. Univ. of Wisconsin Cooperative Extension Publishing, Publication No. A3769. Madison, WI. p. 14–17. |
Total P, K, Ca, Mg, S, Na, Cu, Zn, Mn, Fe, Al | Microwave-assisted acid digestion, ICP | Wolf, A., M. Watson, and N. Wolf. 2003. Digestion and dissolution methods for P, K, Ca, Mg, and trace elements. In: J. Peters et al. (eds.) Recommended methods of manure analysis. Univ. of Wisconsin Cooperative Extension Publishing, Publication No. A3769. Madison, WI. p. 30-38. |
Total N | Combustion | Watson, M, A. Wolf, and N. Wolf. 2003. Total nitrogen. In: J. Peters et al. (eds.) Recommended methods of manure analysis. Univ. of Wisconsin Cooperative Extension Publishing, Publication No. A3769. Madison, WI. p. 18-24. |
Ammonium N | Specific Ion Electrode | Peters, J., A. Wolf, and N. Wolf. 2003. Ammonium nitrogen. In: J. Peters et al. (eds.) Recommended methods of manure analysis. Univ. of Wisconsin Cooperative Extension Publishing, Publication No. A3769. Madison, WI. p. 25-29. |
pH | Specific Ion Electrode | Wolf, N. 2003. Determination of pH. In: J. Peters et al. (eds.) Recommended methods of manure analysis. Univ. of Wisconsin Cooperative Extension Publishing, Publication No. A3769. Madison, WI. p. 48-49. |
Soluble Salts | Electrical Conductivity | Wolf, N. 2003. Determination of manure electrical conductivity. In: J. Peters et al. (eds.) Recommended methods of manure analysis. Univ. of Wisconsin Cooperative Extension Publishing, Publication No. A3769. Madison, WI. p. 50-51. |
Total C | Combustion | Pella, E. 1990. Elemental organic analysis. Part 1. Am. Lab 22: 116-125 |
Water Extractable P | 1:100 (solids:water) extraction | Kleinman, P., D. Sullivan, A. Wolf, R. Brandt, Z. Dou, H. Elliott, J. Kovar, A. Leytem, R. Maguire, P. Moore, L. Saporito, A. Sharpley, A. Shober, T. Sims, J. Toth, G. Toor, H. Zhang, T. Zhang. 2007. Selection of a water extractable phosphorus test for manures and biosolids as an indicator of runoff loss potential. J. Environ. Qual. 36: 1357-1367 |
% Volatile Solids | Ashed at 550 C (Method 2540G) | Standard Methods for the Examination of Water and Wastewater. 1992. 18th Edition, American Public Health Association, 1015 Fifteenth Street, NW, Washington , DC 20005. |
Calcium Carbonate Equivalency (CCE) | ASTM Method C 25 | Standard Test Methods for Chemical Analysis of Limestone, Quicklime, and Hydrated Lime, ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA |
Ag Analytical Services Lab
Hours: Monday-Friday, 8:00 AM - 4:00 PM
- Email aaslab@psu.edu
- Office 814-863-0841
- Fax 814-863-4540
Ag Analytical Services Lab
Hours: Monday-Friday, 8:00 AM - 4:00 PM
- Email aaslab@psu.edu
- Office 814-863-0841
- Fax 814-863-4540