FIELD: agriculture.SUBSTANCE: invention relates to agriculture. Method involves cutting trenches or pits during non-vegetation period and the introduction of organic fertilizers in them. At the same time, charcoal is applied to the bottom of the trench and sprinkled with earth, on which solid organic fertilizers are introduced instead of liquid organic fertilizers – straw, plant stems, fallen leaves, in the same place heat accumulators in the form of plastic bottles with water or stones.EFFECT: method ensures increase in soil fertility by preserving moisture.1 cl, 1 dwg