A volcanic ash deposit of riolite tuff, which has a high micro- and macroelement content and an advantageous structure. By mixing it into the soil, its ion-exchange capacity reduces soil acidity and, due to its particle size, soil binding. It...
By using riolite tufa, soil life is improved and healthier crops can be grown. It can also absorb 20-25% of water, which is beneficial in times of drought and wet weather. It can increase yields by up to 5-10%. When used at the right dose, a 5-8 year...