A mixture for restoring and increasing soil fertility, containing an organic component and a mineral component, characterized in that the organic component is selected from the group: sapropel, bottom silt of freshwater bodies, peat, vegetable cake or a mixture of any two, three or all four of these substances and/or materials, the mineral component is selected from the group: bentonite, trepel, glauconite or a mixture of any two or all three of these minerals and/or rocks