A method of increasing crop productivity, including in the areas of risk farming, based on sowing time optimization, noted for the seeds being placed in the wet overmoistened and / or slurry-type soil, perhaps under the rain, right after the rain or immediately after the snow cover melting, the sowing unit traveling speed being 1-60 km h, provided that a technological transport vehicle capable of operating under pressure on soil of 0,4kgf cm 2 or less up to zero, for example, "Bars UTES 271" on the elastic tyre covers or the air-cushion device is used as a sowing unit power device. In this case the seeds are placed just under the overmoistened soil layer with the depth of penetration being from 0,2 to 15 cm.
