Soils & Media

Acidic

Package Analysis Locations Available

Mehlich 3 Extraction
S3M The preferred test package
S1M plus ALL of the following:
B, S, Fe, Mn, Cu, Zn, Na
TN, IA, IL, NC, VA, FL*
S2M S1M plus any 2 of the following:
S, Fe, Mn, Cu, Zn, Na
TN, IA, IL, NC, VA, FL*
S1M pH, buffer pH, P, K, Mg, Ca, OM, CEC, % cation saturations TN, IA, IL, NC, VA, FL*
*OM is not a standard test in the package for the FL lab

Mehlich 1 Extraction
Basic pH, buffer pH, P, K, Mg, Ca, OM, CEC, % cation saturations TN, NC, VA
Basic + Basic plus Mn + Zn TN, NC, VA
Complete Basic + plus ALL of the following:
Cu, Na, Fe, B, S (Mehlich III)
TN, NC, VA

Alternative Extractants
Phosphorus (Bray-P1, P2 or Olsen) TN, IA*, IL*, VA
Neutral Ammonium Acetate Cations
(Ca, K, Mg, Na,)
TN, IA*, IL*, VA
DTPA Micronutrients
(Cu, Fe, Mn, Zn)
TN, IA*, IL*, VA
*IA and IL labs will provide correlated values

The following can be added to any of the above packages
Soluble Salts (Conductivity) 1:2 TN, IA, IL, NC, VA, FL
Chloride TN, IA, IL, VA, FL
Exchangeable Aluminum TN, VA
NO3-N TN, IA, IL, VA, FL
NH4-N TN, IA, IL, VA, FL
Texture TN, IA, IL, VA

Alkaline

Test packages tailored for Texas and the Southwestern US

Package Analysis Locations Available
SW3 The preferred test package
SW1 plus Nitrate-N and Soluble Salts (1:2)
TN
SW2 SW1 plus Nitrate-N TN
SW1 pH, buffer pH, Organic matter, CEC, % Cation saturations
Olsen P
Ammonium Acetate (K, Mg, Ca, Na)
Mehlich 3 (P, B, S, Fe, Mn, Cu, Zn)
TN

Saline

Test packages tailored for arid regions

Package Analysis Locations Available
SC5 The preferred test package
Saturated Paste Extract:
(pH, K, Ca,Mg, Na, B, Cl, EC, SO4, SAR, HCO3, CO3, SAT%)
Buffer pH, Organic Matter
Olsen P
Ammonium Acetate: (K, Mg, Ca, Na)
DTPA: (Cu, Fe, Mn, Zn)
Nitrate-N
Excess Lime (Fizz Test)
TN
SC4 Water pH (1:1), buffer pH, Organic matter
Olsen P
Ammonium Acetate: (K, Mg, Ca, Na)
DTPA: (Cu, Fe, Mn, Zn)
Boron and Sulfur
Soluble Salts: (1:2)
Nitrate-N
TN
SC6
(Add-On to SC4)
Saturated Paste Extract:
(pH, K, Ca, Mg, Na, B, Cl, EC, SO4, SAR, HCO3, CO3, SAT%)
TN

The following can be added to any of the above packages

Locations Available
Quantitative Lime % TN, VA

Soilless Media

Package Analysis Locations Available
A17*** Combines various extraction methods to determine readily soluble and reserve nutrient fractions in a wide range of soilless media, turfgrass, and landscape settings.

Total Exchangeable Cations
Olsen Phosphorus
Saturated Paste: pH, Salinity , Potassium, Calcium ,Magnesium, Sodium, Sodium Adsorption Ratio, Boron, Chloride,Sulfate-Sulfur, Half Saturation%
1N NaCl extraction: Nitrate-N, Ammoniacal-N,Potassium, Calcium, Magnesium
DTPA extraction: Iron, Copper, Manganese, Zinc
CA
S8B*** Measures only readily soluble fractions of nutrients in course, low nutrient holding capacity soilless media with a saturated media extraction
pH, Salinity, Nitrate and Ammoniacal-N, Phosphorous, Potassium, Calcium, Magnesium, Sulfur Iron, Manganese, Copper, Zinc, Boron, Chloride, Molybdenum Additional – Sodium and Aluminum
CA, TN, VA

*** Fertility recommendations are available upon request and will incur additional costs.

Physical Properties

Package Analysis Locations Available
Physical Properties of Disturbed Media
1 gallon sample required
A06-0 Bulk Density, Volume % Airspace, Readily Available Water
Water Holding Capacity at 2,10, 50 centibars
CA
A06-1 With Percolation Rate CA
A06-2 Percolation Rate Only CA
A06-3 Bulk Density, Water Holding Capacity, Volume % Airspace at container capacity only
***Please specify anticipated container depth, typically 2”, 4” or 6”
CA, TN

Particle Size Distribution of Horticultural and Landscape Soils and Media
A20-1 USDA System for Soils (round hole sieves & hydrometer) CA, TN
A20-2 US Sieve System for Soils (wire mesh), Weight Passing & Retained CA, TN
A20-3 Alternate US Sieves: #10, #20, #40, #60, #80, #100 & #200 CA, TN
A20-4 Organic or Mineral Amendment CA, TN
A20-5 USDA System with US Sieves for Fine/Very Fine Sand CA, TN
Soil Sieve Analysis
Passing 9.42 mm, #4, #6, #10, #18, #20, #35, #40, #60, #80, #100, #140, #200 & #270
CA, TN

Golf Course Particle Size Distribution
USGA Particle Size Distribution
% Sand, %Silt, % Clay, Wet sieving 18, 35, 60, 140, 270
TN

Agricultural Soil Physical Properties
Moisture Holding Capacity 1/3 Bar or 15 Bar CA, TN
Additional Pressure Limits (price per plate CA, TN
Bulk Density (Disturbed Soil) CA, TN, VA
Particle Density CA, TN, VA
Total Soil Porosity CA, TN, VA
Particle Size Analysis: Hydrometer Method (Texture) CA, TN, VA
Sieve Analysis (Please specify sieve sizes) CA, TN, VA

Additional methods/tests available upon request. Please contact laboratory for any questions.