Anaerobic digestion process has changed rejected products into source of energy, producing a byproduct: digestion residues which could be used as agricultural amendant. The object of the thesis is the chemical physical characterization of mixtures of different combinations of peat, rice hulls and anaerobic digestion residues derived from pomace to consider the possibility to use them as substrates in horticultural cultivations. The results demonstrated that the substrates with percentage of 67 and of rice hulls are not right for cultivation…