Analyses
We perform the following analyses (follow the links for a brief description of the methodology for that procedure)*
- Sample drying and crushing (S02)
- Nitrate and nitrite (S03, S04, S05)
- Ammonium (S04, S05)
- Total Nitrogen (SO6, S09)
- Organic matter (S11)
- Organic carbon (S07, S08, S09)
- pH (S36E)
- Carbonate, Total (S10)
- Chloride (S21)
- Saturated extract/Electrical Conductance (S15)
- Exchangeable sodium percentage (ESP) and/or Sodium adsorption ration (SAR) (S17, S18)
- Boron, hot water extractable (S20)
- Sulfur, total (S26)
- Sulfate, extractable (S27)
- Phosphorus, Bray-1 Extractable (for non-calcareous soils)(S24)
- Phosphorus, Olsen Bicarbonate Extractable (for calcareous soils) (S25)
- Total phosphorus (S31)
- Available Potassium (S22)
- Cation exchange capacity (CEC) by direct method (S12)
- Cation exchange capacity (CEC) by summation method (S13)
- Extractable/exchangeable Ca, Mg, Na, K, and Mn (S23)
- Extractable metals (Fe, Mn, Cu, Zn, Cd, Cr, Ni, and Pb), DTPA (S28)
- Extractable metals, 1 M HNO3 (S30)
- Exchangeable aluminum (S19)
- Mehlich III extractable nutrients (S29)
- “Total” elemental, microwave (S31)
- Mercury, Total (S32)
- Textural analysis, Hydrometer (S16)
- Soil Fertility Tests (Scoop Volume) (S34-S38)
*Please note that Test Codes S03 through S33 are done on a weighed soil basis, while the tests done under Test Code S40 are done using a soil volume measurement (scoop) rather than a measured weight of soil. The tests under Test Code S40 are the same as the Soil Testing Laboratory’s Routine tests. At this time we cannot offer organic determinations (i.e. pesticide analyses).
