Enforce High-K

Enforce® High-K 8-6-18(+4)

NPK complex fertilizer for sports turf and public green application with slow-release N sources ISODUR® and methylene urea.
  • Long-life complete fertilizer for various applications
  • High magnesium content for positive influence on chlorophyll and leaf green formation
  • No excessive growth and cuttings
  • Reliable slow nitrogen release over several months
  • Promotes vital root growth, increases the resistance of the grasses
  • Reduction of workload, application risk and nutrient losses due to leaching
  • High in potash
  • For sports turf and public green


Enforce® High-K is a NPK complex fertilizer with ISODUR® and methylene urea slow-release nitrogen, potassium sulfate, magnesium and trace elements.
It is a complete fertilizer high in potassium, completed with high content of magnesium and important trace elements, especially iron. This leads to healthy growth and supports the coloring. It is also suitable for potassium fertilization in horticulture (e.g., fruit, tree nurseries, plants).
Enforce® High-K contains the long-term nitrogen forms isobutylidene diurea nitrogen (IBDU - ISODUR®) and formaldehyde nitrogen with high proportions of fraction II N (hot water soluble nitrogen). These long-term nitrogen forms ensure the effect for many weeks and provide improved N efficiency, improved growth and good coloration.
The high potassium content increases the stability of the grasses, especially in the winter months, and is thus particularly suitable for autumn fertilization. An application in summer ensures a good utilization of water and reduces drought stress. Enforce® High-K is finely granulated, each grain contains all the nutrients and guarantees a very exact distribution of all nutrients.

Show more ... Show less ...


NPK fertilizer with magnesium, sulfur N-P2O5-K2O(+MgO+S) 8-6-18(+4+11) containing isobutylidene diurea (IBDU) nitrogen, formaldehyde urea and iron.
For use in horticulture.
Low in chlorine.

8,0 %


total nitrogen
2,0 % nitrate nitrogen
3,8 % ammonium nitrogen
1,1 % IBDU nitrogen
1,1 % MU nitrogen
0,4 % MU-Nitrogen soluble in hot water
0,45 % MU-Nitrogen soluble in cold water

6,0 %


neutral ammon citrate and water soluble phosphate
5,0 % water soluble phosphate

18,0 %


water soluble potassium oxide

4,0 %


total magnesium oxide
2,0 % water soluble magnesium oxide

11,0 %


total sulfur
10,0 % water soluble sulfur

0,5 %



Application Recommendations

For detailed information on application data please get in touch with your local supplier.

Form of Delivery

  • 25 kg bag

List of Ingredients

> 5% of net weight

Potassium sulfate*, kieserite*, diammonium phosphate*, ammonium sulfate*, dolomite*, trace element mix*, ammonium nitrate*
* Virgin material substances or mixtures

Transport & Storage Recommendations


  • Delivery as loose goods in big bags or on pallets with bags and canisters.
  • Protect loose goods from moisture during transport.
  • Protect goods from excessive direct sunlight and large temperature fluctuations during transport.
  • Only transport fertilizer at moderate temperatures. Use an air-conditioned lorry if necessary.
  • Take note of any hazardous material labels on the product.


Storage general

  • Protect stored fertilizer from frost, light, and moisture.
  • Store loose goods inside a building and not in outdoor areas. Keep doors closed and cover heaped materials.
  • As the product has a tendency to attract moisture, protect it from rain and standing water.
  • Take note of the hazardous material labels on the product where appropriate.
  • Avoid stacking more than two pallets on top of each other. Always cover loose goods and do not offload in the rain.
  • Only transport and store at temeratures between 5 °C and 40 °C. Only store in the original packaging. Products should be used up as quickly as possible once opened.

Storage temperature

  • Avoid frost and excessively high temperatures.
  • Avoid large temperature fluctuations during storage.

Storage period

  • When stored correctly, fertilizer (excluding liquid fertilizer) can be stored in its sealed original packaging for up to three years after delivery.
  • Products should be used up as quickly as possible once opened.
Contact Widget trigger icon
Matthias Grün image
Beata Rudzinska image
Anne Düpjohann image
Do you need help or support with our products?
Get in touch

Your browser is no longer supported

Our website does not support the Microsoft Internet Explorer any more. Please choose a modern browser. We suggest: