1kg Basalt/Andesite - Finely Ground Volcanic Rock Dust
€3.00
Soil additive made from ground Basaltic Andesite rock dust. German origin. Contains a high content of readily metabolisable silica and lime which promote soil fertility and the avoidance of micro-nutrient deficiencies. Approx. 51% silica (SiO2) and 15% Al2O3