• oxide
  • elemental
Nitrogen Total (N) 0%
Phosphorus Pentoxide (P205) 52%
Water soluble (P205) 51.5%
Potassium Oxide (K20) 34%
Water soluble (K20) 34.0%
Nitrogen Total (N) 0%
Phosphorus (P) 22.5%
Water soluble 22.5%
Potassium (K) 28.2%
Water soluble 28.2%
Select MKP



  • Advantages
  • Description
  • Agronomical advantages and usage
  • Directions fo use
  • MSDS
  • 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

Select MKP is very soluble. Select MKP can be diluted in 213 gram / liter (at 20oC). The EC value is low which makes Select MKP a perfect fertigation product. It gives optimum flexibility in because it can be combined with nitrogen fertilizers. Select MKP is often used in hydroponic horticulture and for foliar applications because of it’s easy to use characteristics and purity. Also in high EC-valued water sources Select MKP is the product to use when high salt concentrations should be avoided.

Agronomical advantages and usage

1. Very pure free flowing due to unique production process
2. Maximum flexibility in use of Nitrogen
3. Maximum content-safety
4. Plant supporter when foliar applied
5. No ammonia; the best fit for hydroponic growing systems
6. Ideal for open field fertigation
7. Great crop starter, flower initiation
8. Ideal tank buffer

1. Select MKP (KH2PO4) or mono potassium phosphate has a guaranteed nutrient content of 85,5 points of P and K. This makes Select MKP a very concentrated product. Due to the unique production process of Select MKP 0,5% SO4 is part of the formulation which keeps this product always and unconditionally free flowing.

2. When using Select MKP the flexibility is high. Select MKP can be used in combination with any nitrogen containing fertilizer. There is optimum freedom to choose the ideal fertigation program for the crops that are grown.

3. Select MKP is very safe. It does not contain chlorides, sodium or relevant heavy metals.

4. Although it is not claimed in many trials it has shown that Select MKP can help, when foliar applied, to reduce fungicidal attacks, helping to control powdery mildew disease in crops such as grape, apple, nectarine, mango, rose, melon, watermelon and cucumber.

5. 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.

6. 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

7. Select MKP contains both phosphorus and potassium. 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 has the ideal combination.

8. Select MKP can be mixed with pesticides as an acidifying buffer agent. It has an ideal acidity of 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.