The Dutch Formula Micro basic fertilizer from Advanced Hydroponics of Holland. Biomineral nutrition for plants that contains essential nutrients NPK (nitrogen, phosphorus, potassium). Dutch Formula is a three-part fertilizer (Grow, Bloom and Micro), which is always used according to the Advanced Hydroponics dosing scheme. The Dutch Formula Micro fertilizer is suitable for all growing media. If you are growing in the soil, apply the fertilizer half the dose recommended. For maximum yield, pleasant flavor and solid sticks, use the three-component Dutch Formula fertilizer along with a range of Advanced Natural Power (Root Stimulator, Enzymes +, Growth / Bloom Excellerator and Final Solution).