• elemental
Nitrogen Total (N) 14%
Ammoniacal nitrogen (NH4-N) 1.3%
Urea nitrogen (Ur-N) 2.9%
Ureaformaldehyde (MU-N) 9.8%
Phosphorus (P) 0%
Potassium (K) 5.8%
Water soluble 5.8%
Magnesium (Mg) 3.0%
Water soluble 3.0%
Calcium (Ca) 5.7%
Water soluble 5.7%
Iron (Fe) 0.50%
Manganese (Mn) 0.10%
Copper (Cu) 0.020%
Molybdenum (Mo) 0.001%
Zinc (Zn) 0.020%



6-8 Weeks

Pack size

20 kg

Application rate

15-30 g/m2

Bag coverage

665-1330 m2

Granule dispersal

1-3 days

Turf response

4-7 days

Sierraform GT CalMag



  • Advantages
  • Description
  • Directions for use
  • Spreader settings
  • Compound granule formulation for even coverage
  • Added Ca and Mg and TE for when these nutrients are required.
  • MU formulation for sustained Nitrogen release.
  • Contains SeaMax to provide extra rooting and turf stress management.
  • Great granulation for low application rates.

Sierraform GT CalMag is perfect for fine-turf application through the summer, supplying Ca, Mg, and trace elements particularly where these are indicated as required from soil testing. The excellent granulation means that low application rates can be used, and the response is strong and sustained from the MU-based nitrogen. The added SeaMax in the formulation brings benefits from plant rooting and stress tolerance.

Directions for use

Apply to dry foliage, water in if no rain falls within 1-2 days after application. Irrigation or rainfall will assist dispersion and minimize risk of mower pick-up on close cut surfaces. Watering-in after application will minimize the chance of any foot-printing.
Avoid applications during frosty or drought conditions. Delay cutting or grooming for 2 days after application to allow product dispersal.
Product contains iron so if spilt on pavement, concrete or decorative surfaces brush off immediately as there is risk of staining.

Spreader settings
Type Cone setting Spreader width Application method Application rate 15 g/m2 Application rate 30 g/m2
Rotary spreader SR2000 or Accupro2000 5 3.5 m 1x pass H J
5 3.5 m 2x pass F1/2 H

Sierraform GT CalMag is a zero phosphate mini-granular fertilizer supplying Ca and Mg and trace elements for turf growth and all-round plant health. The nitrogen is mostly MU-based for sustained release and steady even growth. The Sierraform GT range is renowned for improving turf root growth.