Professor’s Original 20 Ltr (Set A + B) is a two-part hydroponic nutrient formula for soilless growing systems. Set A supplies nitrogen from calcium nitrate and chelated micronutrients including iron, manganese, boron, zinc, copper, and molybdenum to support vegetative growth and prevent deficiencies. Set B delivers phosphorus, potassium, magnesium from magnesium sulfate, and sulfur for flowering and fruiting stages. The balanced composition supports precise mixing ratios to maintain target electrical conductivity (EC) and pH levels from vegetative through to fruiting phases in hydroponic setups.
Professor’s original – 20 Ltr (Set A + B)
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