Water-Soluble Fertilizer
Dipotassium Phosphate (DKP)
Di-Potassium Phosphate · K₂HPO₄ · 0-40-54
40% P₂O₅ + 54% K₂O
Dipotassium phosphate (DKP) is a fully water-soluble fertilizer supplying around 40% phosphate (P₂O₅) and 54% potassium (K₂O), with no nitrogen and no chloride. Unlike acidic phosphate sources, DKP reacts alkaline in solution, which makes it both a high-potassium phosphorus–potassium source and a pH buffer for fertigation programmes. Cerantis supplies fertigation-grade DKP to European distributors and specialty growers working with hard or acidic water.
Product Specifications
Grade (N-P-K)
0-40-54 (approx.)
Phosphate (P₂O₅)
~40%
Potassium (K₂O)
~54%
Water Solubility
100% – fully soluble
Chloride Content
≤ 1% (chloride-free)
Solution pH
8.5–9.5 (alkaline / buffering)
Packaging
25 kg bags, 1 MT big bags
Lot Sizes
1–25 MT
Need help choosing the right product? Contact our team for personalized recommendations. Request a Quote →
Applications
- Fertigation needing a high-potassium, nitrogen-free phosphorus–potassium source
- Buffering acidic irrigation water and acidic nutrient solutions
- Potassium-heavy feeding stages such as fruit sizing and ripening
- Chloride-sensitive and salt-sensitive crops
- Blending component for pH-stable water-soluble fertilizers
- Foliar applications requiring a non-acidifying phosphate source
Frequently Asked Questions
What is dipotassium phosphate (DKP)?
Dipotassium phosphate (DKP) is a fully water-soluble fertilizer with the formula K₂HPO₄, supplying around 40% phosphate (P₂O₅) and 54% potassium (K₂O). It carries no nitrogen and no chloride, and reacts alkaline in solution. Growers use it where a high-potassium phosphate source is needed together with a pH-buffering effect.
What is the NPK grade of DKP?
DKP has an approximate NPK grade of 0-40-54: zero nitrogen, around 40% phosphate (P₂O₅) and around 54% potassium (K₂O). Exact values vary slightly by grade and crystal-water content. Its high potassium share makes it useful for potassium-demanding crop stages.
MKP vs. DKP – what is the difference?
Both are chloride-free, water-soluble potassium phosphates. MKP (0-52-34) is higher in phosphate and reacts slightly acidic (pH around 4.5), while DKP (0-40-54) is higher in potassium and reacts alkaline (pH around 9). Choose MKP as the standard fertigation phosphate; choose DKP when you need a high-potassium source that also buffers acidic water.
Is DKP chloride-free and non-acidifying?
Yes. DKP contains essentially no chloride (≤ 1%) and, unlike most phosphate fertilizers, does not acidify the nutrient solution – it reacts alkaline (pH 8.5–9.5). This makes it suitable for chloride-sensitive crops and for systems where lowering solution pH is undesirable.
What crops and growing systems use DKP?
DKP is used in fertigation and foliar programmes for high-value crops during potassium-heavy stages such as fruit sizing and ripening – greenhouse vegetables, fruit, berries and vines. It is particularly useful for growers on acidic or soft water who want to raise and stabilise nutrient-solution pH.
What lot sizes and packaging does Cerantis offer for DKP?
Cerantis supplies DKP in 25 kg bags and 1 MT big bags, in lot sizes from 1 to 25 MT. As a specialty water-soluble product it is sold per requirement rather than in bulk vessels. Contact us with your grade, packaging and quantity for a current quotation.
Why Source This Product from Cerantis?
- Quotes within 4 hours — no waiting, no bureaucracy
- Flexible lots from 20 MT to 2,000 MT per shipment
- Swiss-registered company with full GDPR compliance
✓ Reply within 4 hours
✓ No commitment required
✓ Confidential
✓ Swiss Registered
Related Products