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United Soils, Inc. offers several testing packages to meet specific needs. USI can test for the following Grid sizes: 1.1 / 2.5 / 3.3 / 4.4 / 5.0 / 6.6 / 10 / Perimeters Only.
United Soils, Inc. has expanded its services to include tissue / plant analysis. Reference the list below to see available packages: PT1: Mineral Package. Phosphorus, Potassium, Magnesium, Calcium, Sulfur, Iron, Manganese, Boron, Copper, Zinc. PT2: Nitrogen (total) + Mineral Package (PT1): Individual Analysis. PT3: Total Nitrogen. PT4: Individual Analysis: Per Element (from Mineral Package). PT5: Stalk Nitrate – Nitrogen.