List of the standard manure testing methods used by the Agricultural Analytical Services Lab.
| Analyte | Method | Reference |
|---|---|---|
| Total and Volatile Solids | Dried at 105 C, ashed at 550 C | Spargo, J.T., Brimmer, R., Hicks, K., & Lessl, J. (2022). Total and volatile solids. In M.L. Wilson and S. Cortus (Eds.), Recommended methods of manure analysis (2nd ed., pp. 19–22). Univ. of Minnesota Libraries Publishing. |
| Total P, K, Ca, Mg, S, Na, Cu, Zn, Mn, Fe, Al | Open vessel acid digestion followed by ICP-OES |
Spargo, J.T., & Miller, R.O. (2022). Digestion and dissolution for elemental analysis. In M.L. Wilson and S. Cortus (Eds.), Recommended methods of manure analysis (2nd ed., pp. 61–69). Univ. of Minnesota Libraries Publishing. Hicks, K., Miller, R.O., & Spargo, J.T. (2022). Phosphorus, potassium, and metals by inductively couple plasma – optical emission spectroscopy. In M.L. Wilson and S. Cortus (Eds.), Recommended methods of manure analysis (2nd ed., pp. 71–78). Univ. of Minnesota Libraries Publishing. |
| Total N | Combustion | Hicks, K., Brimmer, R., & Spargo, J.T. (2022). Nitrogen, total by combustion. In M.L. Wilson and S. Cortus (Eds.), Recommended methods of manure analysis (2nd ed., pp. 27–30). Univ. of Minnesota Libraries Publishing. |
| Ammonium N | Diffusion-conductivity | Hicks, K., Brimmer, R., & Spargo, J.T. (2022). Nitrogen, ammonium by distillation, spectrophotometry, and diffusion-conductivity. In M.L. Wilson and S. Cortus (Eds.), Recommended methods of manure analysis (2nd ed., pp. 47–53). Univ. of Minnesota Libraries Publishing. |
| pH | Specific ion electrode | Spargo, J.T., Brimmer, R., Lessl, J. Thayer, B., & Hicks, K. (2022). pH. In M.L. Wilson and S. Cortus (Eds.), Recommended methods of manure analysis (2nd ed., pp. 91–93). Univ. of Minnesota Libraries Publishing. |
| Soluble Salts | Electrical conductivity | Spargo, J.T., Brimmer, R., Lessl, J. Thayer, B., & Hicks, K. (2022). Electrical conductivity (EC). In M.L. Wilson and S. Cortus (Eds.), Recommended methods of manure analysis (2nd ed., pp. 95–97). Univ. of Minnesota Libraries Publishing. |
| Total C | Combustion | Hicks, K., Brimmer, R., & Spargo, J.T. (2022). Carbon, total by combustion. In M.L. Wilson and S. Cortus (Eds.), Recommended methods of manure analysis (2nd ed., pp. 23–25). Univ. of Minnesota Libraries Publishing. |
| Water Extractable P | 1:100 (solids:water) extraction | Hicks, K., Brimmer, R., & Spargo, J.T. (2022). Water extractable phosphorus, 1:100 solids to solution ratio. In M.L. Wilson and S. Cortus (Eds.), Recommended methods of manure analysis (2nd ed., pp. 83–85). Univ. of Minnesota Libraries Publishing. |
| Calcium Carbonate Equivalence (CCE) | Acid neutralizing capacity | Hicks, K., Hoerner, & Spargo, J.T. (2022). Calcium carbonate equivalence (CCE). In M.L. Wilson and S. Cortus (Eds.), Recommended methods of manure analysis (2nd ed., pp. 87–90). Univ. of Minnesota Libraries Publishing. |
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
