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DuraTec Top 14

14-7-14 (+2MgO+9S+TE)

Controlled release NPK complex fertilizer with nitrification inhibitor DMPP (3,4-dimethylpyrazolphosphate), partly coated.


1 kg
1 kg
5 kg
5 kg
25 kg
25 kg

14-7-14 (+2MgO+9S+TE)
Controlled release NPK complex fertilizer with nitrification inhibitor DMPP (3,4-dimethylpyrazolphosphate), partly coated.
2NT: Unique double Nitrogen Technology, partly coated NPK-Fertilizer-25% of total N is coated.

Controlled nutrient releases
The nutrients are released in two steps:

  • Starter effect after application under moisture influence.
  • In a second step, the nutrients are released out of the coated granules via diffusion influenced by moisture and temperature.

Under the normal influence and under temperate conditions, the controlled supply lasts two to three months. The nutrient supply is linked to temperature, i.e. warm (cold) temperature will reduce (increase) the longevity. Drought will also inhibit the nutrient supply. Both effects ensure that nutrient supply is well-adapted to the plant growth factors.

During the active phase of DMPP (4 to 10 weeks, depending on soil temperature and soil humidity) the transformation of ammonium to nitrate is delayed. As a result, N-availability is further adapted to the plants requirements and N efficiency is increased.


Technical data*

Macronutrients Micronutrients
14% nitrogen (N) 0.02% boron (B)
6.0% NO3 nitrogen 0.06% iron (Fe)!
8.0% NH4 nitrogen 0.01% zinc (Zn)!
7% phosphate (P2O5) soluble in neutral ammonium citrate
5.6% water soluble
14% Potassium oxide (K2O) as potassium sulphate, water soluble
2% magnesium oxide (MgO)
1.6% water soluble
9% Sulphur (S)
7.2% water soluble
! Fe and Zn chelated by EDTA.
* All percentages are by weight.

Physical Properties

Color Green/purple
Bulk Density, approx. 1150kg/m3 ± 100kg/m3
Application Rate 200-1000kg/ha
Appearance Granular solid fertilizer, surface treated, 25% of nitrogen polymer coated


Thanks to its even granulation and resistant coating DuraTec® can be applied easily with spreaders or by hand. Nutrient distribution is even as every granule contains all nutrients and micronutrients.


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