Fulvic acid is an organic biostimulant and electrolyte that helps plants resist stress and assimilate nutrients more efficiently. Can be used as a foliar spray or soil drench. Derived from leonardite and potassium hydroxide. Base concentrate - mix 150g of fulvic acid to 1L of water and mix vigorously. Application rate - 1mL of concentrate to 1L of water, or 3g per 1000sq.ft.