The application rate of lime to shift pH is largely determined by soil texture and soil type
Capital Dressings - The Rule of thumb for capital dressings on all mineral soils: approximately 1 tonne/ha of surface applied lime is required to shift the pH on an average soil by 0.1 unit
Maintenance Dressings - Maintenance dressings are based around the annual application of lime, designed to neutralise the natural acidifying effect of pasture production and the acidifying effect of N fertilisers. This also gives an annual application of Ca. The application rate will generally be dependent on the intensity of the farming enterprise eg intensive dairy farming approx 500 kg/ha/yr compared to low stocked hill country at 100 kg/ha/yr
Applications can occur at any time during the year when ground conditions allow.
Lime has a fine particle size; therefore care should be taken to avoid drift onto neighbouring properties especially where sensitive crops are being grown Lime may be mixed with most fertilisers.
Setting up can be a problem after mixing and application should be as soon as possible