Spirulina Culture Fertilizer (Dry Grow Medium) N 250


N250 Food is a ready-to-use balanced compound of mineral nitrogen, phosphorus, potassium, magnesium and trace elements necessary for spirulina cultivation.

This mixture is particularly suitable for people who want to start their crops safely and without having to buy big bags of fertilizer.



N 250 Composition

Sodium Nitrate*, Potassium Sulfate*, Magnesium Sulfate*, Mono Ammonium Phosphate, Urea, Iron Sulfate, Oligo Elements.

* Extracts from natural mines.

Dual use

In growth phase: to make the culture medium

N250 is to be diluted directly in 250 liters of water with 2.5kg of sodium bicarbonate and 500g of sea salt to make the culture medium of spirulina.

Make a NL250 stock solution: dilute N250 in 5 liters of water (water with low calcium content) and use it to make the culture medium with proportions of : 20 ml/l of culture medium (with 10g/l of sodium bicarbonate and 2g/l of salt).

NL 250 can be kept for 30 days in a closed container, protected from light and heat.

During harvesting phase: to feed the spirulina.

During the harvesting phase, the NL 250 solution can also be used to feed the spirulina at a rate of 2 times the volume of the pressed spirulina.

Example; 400ml of NL250 / 200g of harvested pressed spirulina. This corresponds to 170ml of NL250 solution / 10g of dry spirulina harvested.


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