TraceOlite

A silicate volcanic mineral with a pH of 6.8, and a cation exchange (130 ¯ 270 meq/100gm) and water holding capacity. A typical application rate to help improve drainage is 0.5kg-1.0kg per m2, being applied after aeration work; whilst for general soil improvement it is 50g-100g per m2. Its nutrient content is P205 3.1%; K2O 2.9%; FeO 10%; MgO 5.4%; CaO 5.5%; and a range of trace elements. It is produced by Symbio.