Fertilizer & Lime Assays

Standard Tests:

Fertilizer Test 1 Total Nitrogen and Total or Available Phosphorus
Fertilizer Test 2 Total Nitrogen, Total Phosphorus (P2O5) or Available Phosphorus (P2O5) and Potash (K2O)
Fertilizer Test 3 Total Nitrogen, Total Phosphorus (P2O5), Available Phosphorus (P2O5) and Potash (K2O)
Fertilizer Test 4 Total Nitrogen and Potash (K2O)
Fertilizer Test 5 Total Nitrogen, Total Phosphorus (P2O5), Non-Ortho Phosphorus and Conversion
Fertilizer Test 6 Total Available Phosphorus (P2O5) and Potash (K2O)
Fertilizer Test 7 Total, Available, and Insoluble Phosphorus (P2O5) and Free Acid (H3PO4)

If you would like to submit a sample for analysis, click the following link and print out the PDF file.  Send it in with your sample and desired test: Download Fertilizer/Limestone Analysis Information Sheet

Elemental Analysis:

We will test for individual elements or any combination of the following:

Copper, Iron, Manganese, Zinc, Calcium, Magnesium (Total), Magnesium (Water Soluble), Boron, Aluminum, Sodium, Molybdenum, Lead, Nickel, Cobalt, Chromium, and Cadmium.

EDTA Soluble:   Zinc, Manganese, Iron, Copper, and Cobalt.

Heavy Metals: For elements not listed above see Heavy Metals.

Limestone and Gypsum Materials Standard Tests:

  1. Calcium and Magnesium
  2. Calcium, Magnesium, Total Neutralizing Value (CaCO3)
  3. Total Neutralizing Value (CaCO3 Equivalent)
  4. Gypsum (Moisture, Calcium, Sulfur, CaSO4 -2H20)
  5. Moisture
  6. Mechanical Sieve Analysis (4 Screen Sizes) Please Specify Screen Sizes.

Do you have a testing need not listed here?  Let Us Know!  We can custom tailor a package to fit your needs. e-mail: info@watersag.com  or call: 229-336-7216.

Methods Used:

  • Official Methods of Analysis of AOAC International
  • Association of Florida Phosphate Chemists
  • Fertilizer Sampling and Analytical Procedures - The Fertilizer Institute

Check Sample Programs Participation:

  • Association of American Plant Control Officials Magruder Fertilizer Check Program
  • Association of Florida Phosphate Chemists
  • Association of American Feed Control Officials

Staff:

  • Fully staffed laboratory including Ph.D., Chemist, Biologist, and Trained Technicians.

Fully equipped laboratory including:

  • Nitrogen Analyzer
  • Kjeldahl Digestion and Distillation
  • Auto Analyzers
  • ICP's
  • Spectrophotometers

Members:

  • AOAC International
  • Fluid Fertilizer Foundation
  • Georgia Plant Food Education Society