Soil Analysis

Analyses

We perform the following analyses (follow the links for a brief description of the methodology for that procedure)* 

• Crushing and Sieving (S01)
• Crushing and Sieving on Moist/Frozen Soil (S02 - prerequisite for S11 and S35)
• Organic Matter (S05)
• pH (S06)
• Soil Fertility Tests (Scoop Volume) (Soil Test methods) (S03-S08)
• Nitrate and Nitrite (S09, S10, S11)
• Ammonium (S10, S11)
• Aluminum, Exchangeable (S12)
• Boron, Hot Water Extractable (S13)
• Chloride (S14)
• Available Potassium (S15)
• Extractable/Exchangeable Ca, Mg, Na, K, and Mn (S16)
• Phosphorus, Bray-1 Extractable (for non-calcareous soils) (S17)
• Phosphorus, Olsen Bicarbonate Extractable (for calcareous soils) (S18)
• Sulfate, Extractable (S19)
• Extractable Metals by DTPA (Cd, Cr, Cu, Fe, Mn, Ni, Pb, Zn) (S20)
• Mehlich III Extractable Nutrients (Al, Ca, Cu, Fe, K, Mg, Mn, Na, P, Zn) (S21)
• Elemental Analysis, Microwave Assisted Nitric Acid Digestion (EPA 3051) 15 Elements (Al, B, Ca, Cd, Cr, Cu, Fe, K, Mn, Mg, Na, Ni, P, Pb, Zn) (S22A)
• Elemental Analysis, Microwave Assisted Nitric Acid Digestion (EPA 3051) 27 Elements (Al, As, B, Ba, Be, Ca, Cd, Co, Cr, Cu, Fe, K, Li, Mn, Mg, Mo, Na, Ni, P, Pb, Rb, S, Si, Sr, Ti, V, Zn) (S22A)
• Total Phosphorus (S22C)
• Total Nitrogen (S23, S26)
• Total Carbon (S24, S26)
• Total Organic Carbon (S25)
• Sulfur, Total (S27)
• Mercury, Total (S28) (Not Currently Available)
• Calcium Carbonate Equivalent (CCE) (S29)
• Cation Exchange Capacity (CEC) by direct method (S30)
• Cation Exchange Capacity (CEC) by summation method (S31)
• Saturated Extract Electrical Conductance (S32)
• Sodium Adsorption Ratio (SAR) and Exchangeable Sodium Percentage (ESP) (S33, S34)
• Percent Moisture, oven dry weight determination (S35)
• Textural Analysis by hydrometer (S36)
• Extractable Metals, 1 M HNO₃ (Soil Test method for measuring lead in soil)
   

*Please note that Test Codes S09 through S36 are done on a weighed soil basis, while the tests performed under Test Codes S03-S08 are done using a soil volume measurement (scoop) rather than a measured weight of soil. Test Codes S03-S08 are the same as the Soil Testing Laboratory’s Routine tests.

At this time we cannot offer organic determinations (i.e. pesticide analyses).