• elemental
Nitrogen Total (N) 19%
Urea nitrogen (Ur-N) 9.9%
Ureaformaldehyde (MU-N) 9.1%
Phosphorus (P) 0%
Potassium (K) 15.8%
Water soluble 15.8%
Magnesium (Mg) 1.2%
Iron (Fe) 0.50%
Manganese (Mn) 0.10%
Copper (Cu) 0.020%
Molybdenum (Mo) 0.001%
Zinc (Zn) 0.020%


Granule size


Avg Granule Size (mm)


Avg Recommended Rate

25 g/m²

Product Dispersal

2-3 days

Recommended Rate

20.00 - 30.00 g/m²

Turf Response

7 days

Sierraform GT NK



  • Advantages
  • Description
  • Spreader settings
  • Directions for use
  • Balanced NK fertilizer
  • Great on fine turf anytime between spring and summer
  • Aids with Phosphorous buildup in the soil 
  • Magnesium levels enhance turf color and mask stress symptoms

SierraformGT NK 19-0-19+MgO is a balanced NK fertilizer that contains ICL's patented MU2 and SilK coating technologies. It is particularly suitable for use on fine turf areas anytime between spring and autumn.

Its Phosphate free formulation manages any Phosphorous buildup in the soil. The Magnesium content enriches turf color and masks stress symptoms.

Spreader settings
Spreader type

Application method

Cone setting

Spreader width (m)

Application rate g/m2


Application rate g/m2


Application rate g/m2


Rotary spreader

1x pass





 M 1/2

SR-2000 or Accupro 2000

 2x pass



 I 1/2

 J 1/2


Drop Spreader

1x pass 







2x pass 






Directions for use

Contains Iron:
Do not apply in case of risk of contact with concrete, marble, stone, fabric, swimming pool, ... - If spilt on paving slabs, concrete, clothes etc. brush off immediately, as product may cause discolorations

SierraformGT NK 19-0-19+2MgO+TE (6 – 8 weeks) contains both slow release Nitrogen and slow release Potassium, along with conventional release NPK in a single compound micro-granule.

Suggested period of use

  • Jan
  • Feb
  • Mar
  • Apr
  • May
  • Jun
  • Jul
  • Aug
  • Sep
  • Oct
  • Nov
  • Dec