• Inorganic – Classical approach to manufacturing fertilizers using inorganic raw materials such as sulfuric acid, phosphoric acid, ammonia, potash. phosphate rock, etc.
• Organic – Utilizes bio-waste to create a granular fertilizer product. Other inorganic raw materials can be added to increase the plant food value as well.
• Waste-to-Fertilizer – Many industrial processes create process by-products and other materials containing plant food value that can be converted to a granular fertilizer.
• Manures (cattle, swine, poultry)
• Ammoniated Phosphates (MAP, DAP)
• Ammonium Sulfate
• Potash
• Superphosphates
• Compost & other organic materials
• Sulfur
• Biosolids
• NPK
• Urea