Trucal is a granular limestone containing 99% calcium carbonate. Trucal can be used to adjust soil pH to improve nutrient availability and soil structure. Trucal can be applied throughout the year at a total rate of 0.5-8 kg/m² (maximum 0.1-1 kg/m² per application).
Trucal granular limestone has been carefully crushed and screened to produce a consistent and finely granulated product with excellent spreading ability and efficacy.
Overtime the acidity of soils can increase due to both natural and management processes. For example, the acidifying effects of rainfall and the use of fertilisers. As soil acidity increases, plant health can suffer as nutrients become less available. To counter this effect, Trucal is able to naturally neutralise soil acidity by reducing the amount of acidifying free hydrogen ions.
Trucal has a high neutralising value of 55.6% and a fine granulation meaning that it will get working to neutralise soil acidity faster than more coarsely ground liming products.
|Granule size (mm)||Cutting height||Bag size (kg)||Trucal requirement (kg/m²)||Bag coverage (m²)|
|0.6 - 1.2||All turf including fine turf||25||0.5 - 8||250 - 12.5|
Trucal should ideally be incorporated into the soil up to six months prior to seeding to give time for the neutralisation process to occur. On established turfgrass and borders, Trucal can be applied at any time of the year but is most effective when applied in the autumn.
|Guide to Trucal requirement* to raise soil pH to 6.5|
|Starting pH||Sandy - Silt loams||Clay loams & clay||Organic soils (<25% OM)||Peaty soils (>25% OM)|
For advice or further information on Trucal, speak to a technical sales advisor on +44 (0)1902 440250.