CPC Subgroup
C05F 17/20 using specific microorganisms or substances, e.g. enzymes, for activating or stimulating the treatment (use of invertebrates C05F17/05)
Full Title
Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation > using specific microorganisms or substances, e.g. enzymes, for activating or stimulating the treatment (use of invertebrates C05F17/05)