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.

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
Download Material Safety Data Sheet
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Description
Declaration
EC FERTILIZER
NPK fertilizer with magnesium, sulfur N-P2O5-K2O(+MgO+S) 8-6-18(+4+11) containing isobutylidene diurea (IBDU) nitrogen, formaldehyde urea as well as boron, copper, iron, manganese and zinc.
For use in horticulture.
Low in chlorine.
Content
Nutrients
8,0 %
N
total nitrogen
2,0 % nitrate nitrogen
3,8 % ammonium nitrogen
1,1 % IBDU nitrogen
1,1 % MU nitrogen
6,0 %
P2O5
neutral ammon citrate and water soluble phosphate
5,0 % water soluble phosphate
18,0 %
K2O
water soluble potassium oxide
4,0 %
MgO
total magnesium oxide
2,0 % water soluble magnesium oxide
11,0 %
S
total sulfur
10,0 % water soluble sulfur
0,1 %
B
boron
0,015 %
Cu
copper
0,5 %
Fe
iron
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
Transport
- 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
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.
Related Crops
Here you will find information about which crops this product is suitable for.