Potassium Sulfate (K₂SO₄)

Nutrient content

Potassium sulfate SOP from Daka is an excellent potassium fertilizer for enriching slurry with potassium.

Potassium	approx. 170 kg/t
Sulfur	approx. 80 kg/t

Information

Application

Potassium sulfate can be used without crop restrictions. It is suitable for all conventional crop rotations, including forage crops and potatoes, and is exempt from fertilizer nutrient accounting requirements.

Delivery

Potassium sulfate has a thick, semi-solid consistency, making it well-suited for mixing into slurry or other liquid residual products with low potassium and sulfur content.
Filling is carried out using a truck-mounted grab, and we recommend adding 20–25 tons of potassium sulfate per 1,000 m³ of slurry. This corresponds to approximately 100 kg of potassium and 50 kg of sulfur per hectare, in addition to the nutrients already present in the slurry.

Origin

Potassium sulfate is a hygienized by-product from Daka Biodiesel. Nutrient availability is comparable to commercial mineral fertilizers and livestock manure, and it can be applied without crop restrictions.

Nationwide Delivery

We operate nationwide with strategically located storage facilities close to both treatment plants and farmland. Our fertilizer products are locally sourced, keeping transport — and climate impact — to a minimum. By recycling nutrients, we also substitute phosphorus that would otherwise be imported from abroad.

How to Proceed

You can contact Miljøservice by phone, email, or through our website.

Based on the information you provide, Miljøservice will prepare a delivery agreement and notice, including field number, area size in hectares, expected delivery time, and a field map. We will also provide information on the nitrogen, phosphorus, and potassium content, along with recommendations for supplementary commercial fertilizer. You can contact us — or we will contact you — when the spreading period approaches.

Watch Potassium Sulfate being spread

Good Reasons to Use Potassium Sulfate

A concentrated potassium product with sterile, precipitated, low-chloride potassium and sulfur from biodiesel production.
Ideal for mixing into slurry and liquid residual products with low potassium and sulfur content to optimize nutrient composition.
Can be used in all types of conventional crop rotations, including forage crops and potatoes, and does not need to be included in the fertilizer accounting.
Each ton provides approximately 170 kg of low-chloride potassium and 80 kg of low-chloride sulfur.