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Fertilizer analysis can be used to measure the nutrient content of both dry and liquid fertilizers. Lime quality analysis can be used to measure the potential effectiveness of a liming material. Gypsum quality analysis is used to measure the efficacy of gypsum products as soil amendments.

*Call the Laboratories at 800.557.7509 for information on testing packages and discounts based on sample volume.

NP Analysis
Nitrogen, Phosphorus
Washington State Metals Package
Arsenic, Cadmium, Cobalt, Lead, Molybdenum, Nickel, Selenium, Zinc
Individual Tests
Boron, Calcium, Copper, Iron, Magnesium, Manganese, Molybdenum, and Zinc
Electrical conductivity
Moisture (110° C oven)
Moisture (Karl Fischer titration)
Water insoluble (WIN)
Phosphorus: Total
Potassium, soluble
Salt index
Sulfur (excluding elemental S)
Lime & Gypsum Analysis Packages
Lime Quality Analysis
Moisture, Calcium carbonate purity, Fineness, ECC lime, Sieve analysis, (>8, 8-60, <60 mesh)
Mineral Quality Analysis
Moisture, Calcium, Sodium, Magnesium
Gypsum Quality Analysis
Moisture, Calcium, Sulfur, Sieve analysis, ((>8, 8-60, <60 mesh), % as pure Calcium sulfate
Lime & Gypsum Individual Tests
Minerals: Boron, Calcium, Copper, Iron, Phosphorus, Potassium, Magnesium, Manganese, Molybdenum, and Zinc
Moisture (110° C oven)

Dodge City, Kansas

Hastings, Nebraska

Amarillo, Texas

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