Reclamation of sandy soils under difficult climatic conditions is based on enrichment of a sandy soil layer 10 to 30 cm deep with 10 to 40 wt. % of depolymerized residue from dry distillation of wood at a temperature up to 300 °C, related to the weight of the mixture with the sandy soil. This mixture is preferably enriched with 5 to 25 wt. % of at least one substance from a group consisting of a compost, organic fertilizer, inorganic fertilizers, bacterial cultures of aerobic microorganisms, carbohydrate based bacterial nutrients, cellulase and amylase, related to the weight of the mixture with the sandy soil. Another part of the invention is a premix for reclamation of sandy soils comprising a depolymerized residue from dry distillation of wood at a temperature up to 300 °C and a maximum of 70 wt. % of at least one substance from a group consisting of a compost, organic fertilizer, inorganic fertilizers, bacterial cultures, nutrients or enzymes, related to the weight of the premix.
