HumaPlex (humic acid concentrate) increases miconutrient uptake by plants when incorporated into a fertility management program.  This water soluble dry powder can be broadcast on gardens, fields and turf or can be added to liquid for foliar, soil/soilless and hydroponic applications.  Contains non-plant food ingredients:  50.0% Humic Acid 50.0% Inert Ingredients.  Derived from cretaceous period fresh waster humic substances.  Use 1/8 tsp per gallon water for foliar spray, 1/4 - 1/2 per gallon water for soil drench and hydroponics. Net Weight: 100 g (3.5 oz)