Growth Technology BlackJak is possibly the most highly concentrated mixture of humic acid and fulvic acid available on the market, making it great value-for-money.
Containing over 20% humic acid and 4.5% fulvic acid, BlackJak naturally improves nutrient uptake and transport within a plant, producing faster, stronger growth and improved crop quality and quantity.
Once the user has seen at least one product this snippet will be visible.