Dolomite

Important Information

• Benefits

  Where both magnesium and lime are required, dolomite is often more cost-effective than applying magnesium oxide and lime separately in the upper South Island and lower North Island.
  
  Even when the liming value is not considered, dolomite is often used as a source of magnesium, as the availability of the magnesium is increased, relative to Magnesium Oxide, due to its finely ground nature.​

• Uses

  Primarily used for dairy farming as both a magnesium source and liming source. It is also used in some horticultural situations where magnesium and calcium inputs are required.

• Application rates and advice

  Dolomite is typically applied at rates of about 100-300kg/ha. However, rates of up to 1000kg/ha may be warranted, depending on the amount of capital Magnesium required. Dolomite is often mixed with RPR, Sulphur Super, and Potassium Chloride (Potash).

• Storage and handling

  Dolomite is safe to store - ensure it is kept dry.

• Source

  Ngarua Lime near Nelson - it is then freighted around the country to Ravensdown stores.