*SPECIAL ORDER ITEM* Call your sales rep for details. Master A&B is a premium two-part fertilizer program perfect for all plants, and made with non-toxic, high quality ingredients. *SPECIAL ORDER ITEM* Call your sales rep for details. Master A&B is a premium two-part fertilizer program perfect for all plants, and made with non-toxic, high quality ingredients. This vigorous 2-part nutrient solution contains no EDTAs and can be used on any plant, in any growing medium. Master A and Master B are both formulated to provide your plants with higher absorption of nutrients, vitamins, minerals and trace elements. The Master A and Master B series makes macro and micro nutrients more available to your plant. Use in conjunction with Humboldt Nutrients powerful additives for dramatically increased yields and quality. Guaranteed Analysis Total Nitrogen (N).....4.00% Ammoniacal Nitrogen0.80% Nitrate Nitrogen3.20% Soluble Potash (K20)...3.00% Calcium (Ca)..1.70% Molybdenum (Mo) 0.0008% Zinc (Zn).0.05% Water Soluble Zinc..0.05% Derived From: Ammonium Nitrate, Potassium Nitrate, Calcium Nitrate, Sodium Molybdate, Calcium Carbonate, Sodium Borate, Iron, Zinc, Manganese, Boron and Molybdenum. Directions: Fill your reservoir with clean water before administering any nutrient or additive. Make sure that the water level in your reservoir is sufficient enough to effectively flood your desired area or table. Potential nutrient lock-out can be avoided by adding Master A to your reservoir first and thoroughly mixing it in, then add Master B. Never mix these nutrients together in their concentrated forms. After adding in each nutrient adjust the pH of your reservoir between 5.5 and 6.5. Keep the water temperature in your reservoir between 65 and 75 F. Drain and clean your reservoir and pumps at least once a week to prevent any salt buildup. Avoid storing in direct sunlight and protect from freezing. Application Rates: GROWTH STAGE Master A: 1ML/L Master B: 0.5ML/L FLOWERING (EARLY/TRANSITION) Master A: 1ML/L Master B: 1ML/L FULL BLOOM (FRUITING STAGE WEEK 4-8) Master A: 2ML/L Master B: 2ML/L Foliar Application: Apply at a rate of 5ml per gallon of finished spray solution.