Functional Fertilizer Additives refer to substances added during fertilizer production or application to improve physical and chemical properties, enhance nutrient use efficiency, or impart specific biological functions to fertilizers.

Core Functions & Main Classifications

• Stabilizers (Efficiency Enhancers):
  • Urease Inhibitors (e.g., NBPT): Slow down urea hydrolysis to reduce ammonia volatilization losses.
  • Nitrification Inhibitors (e.g., DMPP, DCD): Suppress the conversion of ammonium to nitrate, reducing nitrogen leaching and gaseous emissions.
• Plant Growth Regulators & Biostimulants:
  • Humic Acid / Fulvic Acid: Improve soil structure, promote root development, and enhance crop resistance to drought and cold.
  • Seaweed Extracts / Amino Acids: Provide natural plant hormones and endogenous growth-active substances to stimulate growth and alleviate stress.
• Physical & Chemical Conditioners:
  • Anti-caking Agents: Prevent fertilizers from absorbing moisture and caking during storage and transportation.
  • Granulation Aids: Improve the granulation rate and hardness of granular fertilizers.
• Nutrient Absorption Facilitators & Chelating Agents:
  • Chelating Agents (e.g., EDTA, EDDHA): Prevent micronutrients (like Fe, Zn, Mn) from being fixed in the soil, boosting their availability.
  • Polyglutamic Acid (γ-PGA): Features strong water and nutrient retention capabilities, promoting the uptake of phosphorus and micronutrients.