Gazette Notification Number. S.0.3922(E) 12th Sep, 20244 BLACK DIAMOND GOLD BIOSTIMULANT Humates and Fulvate Acid - 22% (Liquid) (Humic and Fulvic Acid and their Derivatives) Total water soluble humates and fulvates percent. weight by volume, minimumĀ 22 pH (1:5 aqueous solution) 9.0(Min) Specific gravity 1.05<br>(a) Name of the crop – Ground nut ;(b) Dose: Two soil applications at 1.25 l/ha