• elemental
Nitrogen Total (N) 0%
Phosphorus (P) 22.5%
Water soluble 22.5%
Potassium (K) 28.2%
Water soluble 28.2%

Select MKP


  • Advantages
  • Description
  • Directions fo use
  • Downloads
  • Very pure free flowing due to unique production process 
  • Maximum flexibility in use of Nitrogen 
  • Maximum content-safety 
  • Plant supporter when foliar applied 
  • No ammonia; the best fit for hydroponic growing systems 
  • Ideal for open field fertigation 
  • Great for starting up the crop, flower initiation 
  • Ideal tank buffer
  • Potassium has an important role in the formation and transportation of sugars, starches and acids. It increases fruit quality and product shelf life. Phosphorus promotes root growth and promotes early maturity. Select MKP (KH2PO4)  has a guaranteed nutrient content of 51,5 and 34 units of P and K respectively. This makes Select MKP a very concentrated product. Due to the unique production process of Select MKP, 0.5% of SO4 is part of the formulation which keeps this product always free flowing.
  • Select MKP is fully soluble and can be diluted in 213 gram / liter (at 20°C).
  • The EC value is low which makes Select MKP a perfect fertigation product. It does not contain chlorides, sodium or relevant heavy metals, which makes it a very safe product.
  • Due to its low salt index Select MKP can be easily and safely used in hydroponic cultures. Select MKP contains no ammonia which makes Select MKP the ideal fertilizer for hydroponic systems.
  • It offers great flexibility because it can be combined with nitrogen fertilizers. 
  • Preliminary trial results have shown that Select MKP helps controlling powdery mildew disease in crops such as grape, apple, nectarine, mango, rose, melon, watermelon and cucumber.
  • When the EC level in open field fertigation systems needs to be controlled Select MKP will not increase the EC so there are more options to steer the overall salt concentration for open field purposes
  • Select MKP can be mixed with pesticides as an acidifying buffer agent. It has pH 5 (+/- 0,5) so it improves the quality of the spray water and enhances the efficacy of pesticides.
Directions fo use

Use Select MKP as the phosphate and potassium source in your fertigation program when you need a low salt index product. It’s a pure product for hydroponic systems and a safe product in open field fertigation due to the low added salt. Select MKP can also be used as a foliar product and can help to reduce powdery mildew on several crops. Select MKP can be easily mixed with other single source soluble fertigation fertilizers like Select KCL, urea or potassium nitrate. Before a new rate, product or application method is used, a small scale trial is recommended. Contact Everris or your professional advisor for specific advice and recommendations.

Select MKP is the high grade, white solid crystalline, fully soluble, free flowing phosphorus potassium fertigation fertilizer. The purity of the product allows both elements to be easily taken up. Select MKP has a low salt index which makes it the ideal phosphorus and potassium containing fertilizer for fertigation. Select MKP is, for pure fertigation purposes, exclusively sold via Everris in many countries.