Activates the plants self defense mechanism (SAR). International Plant Nutrition Crop Specific Fertilizers Metabolic Activator Natural Line Nutrient Deficiency Correctors NutriProtective Specialized Fertilizers Specialized Fertilizers Metabolic Activator NutriProtective Nutrient Deficiency Correctors Natural Line Crop Specific FertilizersFulmic 0-30-25Fulmic CalciumFulmic Copper Fulmic ForteFulmic Plus 0-38-26Fulmic PrimeHalcon