Agricultural Soil Analysis

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Basic Soil Test Packages

S1 Organic Matter
Available Phosphorus
Exchangeable Potassium
Magnesium
Calcium
Soil pH
Buffer pH
Cation Exchange Capacity
Percent Base Saturation of Cation Elements
S1A S1 plus Strong Bray Phosphorus
S1B S1 plus Sodium Bicarbonate Phosphorus
S1AB S1 plus Strong Bray & Sodium Bicarbonate Phosphorus
S2 S1 plus Soluble Salts and Sodium
S3 Sulfur, Zinc, Manganese, Iron, Copper, Boron
S4 Zinc, Manganese, Iron, Copper
S5 Sulfur, Zinc
S6 Sulfur, Zinc, Manganese, Boron
S7 Zinc, Manganese, Boron

Wisconsin - Soil Test Packages/Tests

SWI1 Organic Matter, Soil pH, Buffer pH, Phosphorus, Potassium
SWI2 SWI1 plus Calcium and Magnesium
Micronutrients Boron, Manganese, Sulfur, Zinc (per element)

Individual Analysis of Extractable Soil Nutrients

(with any Basic Test Package)
Zinc
Manganese
Iron
Copper
Boron
Sulfur
Sodium

Reporting and Sample Preparation Options

Many report sizes available
Customized forms
Field Summary Report - Field average report with recommendations and graphic display of results. For reports with two or more samples.
Additional Recommendation on Historic Samples
Re-reporting Fee (per report or e-mail)
Composite Sample Preparation (per sample group)

Field Summary Report

Field average report with recommendations and graphic display of results. (For reports with two or more samples (per report))

Customized Forms

Soil test results can be printed on customized report forms. Form design service is available. Contact the laboratory for details and cost.

Container and Greenhouse Mixes

S8 Using saturated media extract: pH, Nitrate-N, Phosphorus, Potassium, Calcium, Magnesium, Conductivity, Sodium
S8A Same as S8 plus Zinc, Manganese, Iron, Copper, Boron, Sulfur

Lawn & Garden

S10 Same as S1 with graphic display of results and suggested fertilizer materials (for lawn, garden, nursery, landscape, and golf course samples only)
S11 Same as S10 plus Soluble Salts, Sulfur, Zinc, Manganese, Iron, Copper, Boron

Soil Physical Measurements

Sand Classification (USDA Size Limits by Wet Sieving)
Sand Classification (USGA Size Limits by Wet Sieving)
USGA Putting Green Physical Test Series Includes Bulk Density, Pore Space, Infiltration Rate and 1/10 Bar Moisture Retention
1/3 plus 15 Bar Moisture Limits by Pressure Membrane
Additional Pressure Limits (0.1, 1.0, 3, 5, 10 Bar)
Bulk Density (Disturbed Soil)
Particle Size Analysis (%Sand, Silt and Clay by Hydrometer Method)
Particle Size Analysis (ASTM D422)
Particle Size Analysis (ISDH Septic System Site Evaluation)
Coarse Fragments (>2mm)
Coarse Fragments (ASTM D422)

Miscellaneous Soil Analyses

Preparation Charge - For individual analyses without Basic Soil Test Package (per sample)
Acid-Base Accounting Package (Neutralization Potential, Pyretic Sulfur, Potential Acidity, Net Neutralization Potential)
Aluminum (Exchangeable)
Carbon to Nitrogen Ratio (Carbon (LOI), Total Nitrogen, C:N Ratio)
Cation Exchange Capacity (by Ammonium Saturation at pH 7.0)
Chloride
Conductivity (Soluble Salts)
Corrosivity Package (Saturated Paste Extract, pH, Resistivity, Sulfate, Chloride)
Micronutrients, extractable (0.1 N HCl, Mehlich-3, DTPA, other)
Metals
Moisture
Neutralization Potential
Nitrogen, Ammonium
Nitrogen, Nitrate
Nitrogen, Nitrate plus Ammonium
Nitrogen, Total (Dumas)
Nitrogen, Total Kjeldahl
Organic Carbon (Combustion)
Organic Carbon (Titration)
Organic Matter (Combustion)
Organic Matter (Titration)
pH, Buffer pH
Phosphorus, Extractable (Bray-1, Bray-2, Mehlich-1, Mehlich-3, Olsen)
Phosphorus, Total
Phosphorus Adsorption Capacity (MI DEQ), Bray-1 Phosphorus
Potential Acidity (Pyritic Sulfur)
Saturation Paste Package (Soil pH, Conductivity, Calcium, Magnesium, Sodium, SAR)

Primary Method References

Recommended Chemical Soil Test Procedures for the North Central
Region, NCR No. 221
Methods of Soil Analysis, Soil Science Society of America
Wisconsin Soil Testing and Plant Analysis Procedures
Diagnosis and Improvement of Saline and Alkaline Soils,
USDA Handbook 60
ASTM Standards - Various
Field and Laboratory Methods Applicable to Overburdens and
Minesoils, EPA-600/2-78-054

Quality Control Programs & Certifications

North American Proficiency Testing Program
Agricultural Laboratory Proficiency Program
Wisconsin Department of Agriculture, Trade and Consumer Protection
Missouri Soil Testing Association Accreditation Program
Iowa Soil Testing Laboratory Certification Program
Minnesota Department of Agriculture