Humboldt Nutrients Master-B Reverse Osmosis Water Filtration Systems It can also be applied

It can also be applied moderately during early flowering and fruiting as a supplemental nitrogen boost

The other two products in the FloraSeries are:

Cal-Mag is especially important for preempting deficiencies when growing in certain media

Recommended for Hand-Feeding applications

and contains no artificial hormones

Humboldt Nutrients Master-B Reverse Osmosis Water Filtration Systems It can also be appliedPart Two Of Humboldt Nutrients Master Fertilizer Program Humboldt Nutrients has formulated this vigorous 2 part nutrient solution for use on any plant, in any growing medium and contains no EDTAs. Humboldt Nutrients Master A&B is a premium two part fertilizer program designed for all plants made with non toxic, high quality ingredients. The Humboldt Nutrients team of chemists and agronomists emphasize balance and consistency with all our formulas.