Osmo Pro 5-4-8 (+3)

Solid Fertilizer

Osmo Pro 5-4-8 (+3) is an organic plant based fertilizer that will contribute to soil organic matter and soil fertility. The mix of organic raw materials makes a sophisticated compound fertilizer with controlled release of nutrients over time.

The period of releasing nutrients is minimum 90 to 120 days. Osmo Pro 5-4-8 (+3) is a fully plant based fertilizer. Due to the balanced amount of NPK this fertilizer is a good basic fertilizer. Osmo Pro 5-4-8 (+3) can be used complementary with other fertilizers. The fertilizer has a high magnesium content. The addition of seaweeds results in positive effects on photosynthesis. Seaweed can decrease plant stress.

This organic plant based fertilizer is certified for use in organic agriculture EC 834/2007 and EC 889/2008.

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Product characteristics

Pellet diameter crumb 2-3 mm
Organic matter 50%
Nitrogen (N total) 5%
Nitrogen (N organic) 5%
Fosforic acid anhydrid (P2O5) soluble in mineral acid 4%
Potassium oxid (K2O) soluble in water 8%
Magnesium oxid (MgO) soluble in mineral acid 3%
Sulfur (S) 3,2%
Calcium oxide (CaO) 4%

Raw materials

Wheat middings
Rock phosphate

Unique characteristics:

– Plant based fertilizer
– Strong effect on soil fertility
– Balanced NPK ratio

– High in magnesium
– Positive effect on photosynthesist

Dosage averages

Recommended dose 50-150 g per m²


Storage in a well ventilated place away from moisture.


– 500 kg big bags
– 25 kg bags