Abstract
Through controlled biotechnology of vermicomposting it is possible to process undesirable organic matter or organic matter of lower quality, to modify its unfavourable qualities, such as high moisture, odour or saprogenic processes, and to decrease its volume, improve its structure and manipulability. All this can be done without straining the environment, without generating any residues or disrupting natural ecosystems. Soil is enriched with stabilized organic matter containing a high percentage of humus substances which are vital for regeneration and preservation of soil fertility.