Fertilizer testing is essential to ensure the quality, nutrient content, and safety of fertilizers used in agriculture. METS Lab provides reliable testing services that evaluate the nutrient composition—including nitrogen, phosphorus, potassium, and essential micronutrients—as well as physical properties and potential contaminants. Accurate analysis helps farmers and agribusinesses verify that fertilizers meet regulatory standards, optimize nutrient application, and prevent overuse or improper use which may harm crops and the environment. Our services ensure fertilizer quality and compliance, supporting enhanced crop yields, efficient input management, and sustainable agricultural practices. All tests are conducted using internationally recognized methods to guarantee precision, reliability, and adherence to industry standards.
Scope of Testing
- Straight fertilizers (Urea, Ammonium Sulphate, SSP, etc.)
- Compound fertilizers (NPK, DAP, MAP)
- Organic & Bio-fertilizers
- Micronutrient & Chelated fertilizers
- Slow-release and coated fertilizers
- Liquid fertilizers & foliar sprays
- Customized blends (commercial & research-grade)

Key Testing Parameters
NPK ANALYSIS
- Total Nitrogen (N)
- Available Phosphate (as P₂O₅)
- Soluble Potash (as K₂O)
Physical and Chemical Properties
- Moisture Content
- pH
- Electrical Conductivity (EC) or Salinity
- Granularity/Particle Size Distribution
- Bulk Density
Nutrient Analysis (Micronutrients)
Boron (B), Copper (Cu), Iron (Fe), Manganese (Mn), Zinc (Zn), Molybdenum (Mo), Cation Exchange Capacity (CEC), Exchangeable Bases: Determines the amounts of exchangeable cations (Ca, Mg, K, Na) held by the soil. Sodium Adsorption Ratio (SAR) and Exchangeable Sodium Percentage (ESP) Carbon to Nitrogen Ratio (C:N)
Secondary Macro Nutrients
- Calcium (Ca), Magnesium (Mg), Sulfur (S)
Heavy Metals and Toxic Substances
- Lead (Pb), Cadmium (Cd), Chromium (Cr), Arsenic (As), Mercury (Hg), Nickel (Ni)
- Biuret
- Pesticide Residues
Micro Nutrients
- Boron (B), Copper (Cu), Iron (Fe), Manganese (Mn), Zinc (Zn), Molybdenum (Mo), Chlorine (Cl), Cobalt (Co)
Biological Contaminants
- Pathogenic Bacterial Identification
- Pathogenic Fungal Identification
- Nematodes