The aim of this study was to determine and validate the impact of residual biomass compost to modify the physical and hydro-physical properties of a deficient soils. Set of experiments was carried out to achieve the following sub-objectives: - Monitoring the impact of compost on selected physical properties deficient soils. - Evaluation of the dynamics of change of density after incorporation of higher doses of compost. - Assess the impact of different doses of compost incorporation on infiltration, soil structure and penetrometer resistance at two different sites. - Monitoring the retention capacity of soils with different doses of compost applied. Experimental work was carried out in the form of small plot, nádobových a pilot experiments.