This 100% Soluble Humic Acid Powder Will Surely Please! From the beginning gardener to the seasoned professional, humic acid has been used effectively to produce HUGE plants and HUGE yields. Can be used in soil and hydroponic systems! For soil or hydroponic system at a 12% solution of Humic: 1. Mix 1.25 lbs of Powder into 1 US Gallon of Water. 2. Mix small amounts at a time and stir and blend until well dissolved. 3. Makes (4) 12% Humic Acid Solution 1-Quart Jugs. For Soil or Hydroponic systems at 6% Humic Acid: 1. Mix .625 lbs of powder into 1 gallon of water 2. Mix small amounts at a time and stir and blend until well dissolved. 3. Makes (4) 12% Humic Acid Solution 1-Quart Jugs. For Soil Application: 1. Mix 1oz of Humic Acid Solution per 1 US Gallon of Water 2. Apply every two weeks whether foliar or by way of watering the root system For hydroponic Application: 1. Best used as 1oz of Humic Acid Solution in the reservoir or as a better application, please foliar feed. *NOTE: Please do not mix with calcium fertilizers or fertilizers with a ph of 6.0 or lower. *NOTE: More is not better in the case of humic acid and please follow directions.