Humboldt nutrients master b

Humboldt Nutrients Master B - Humboldt Nutrients Master A & B is a premium two-part amino acid-based fertilizer program designed for flowering plants. The amino acids and organic acid complexes set the Master A & B series apart from your standard base nutrient by making all the macro and micro nutrients more available.

NPK Ratio: 1-5-6

Available in: Quart | Gallon