FIELD: agriculture.SUBSTANCE: invention relates to a device and method of growing grain crops. The method of growing grain crops with loosening the soil to a depth of sowing to the entire working width comprises sowing of spring crop and/or winter crop in a lane for one crop seeds or seed mixture of crops through unsown line or a line for the seeds of winter crop, which is additionally sprinkled with loosened soil from openers, and the width of the inter-row spacing li and the line width Il are selected so that they meet the requirement of 20 < 2*li - ll <=30. The device for growing grain crops with loosening soil to a depth of sowing to the entire working width with the box for seeding material, with at least two compartments and shafts with sowing devices, the common supplying devices connected by the drill tubes with the coulters mounted on the spring-loaded racks pivotally attached to the frame, at that each odd coulter is located behind the even one across the inter-row spacing, or, vice versa, each even opener is located behind the odd one across the inter-row spacing. The width of the inter-row spacing Ii and width of the line ll are chosen so that they meet the requirement of 20 < 2* li - ll <= 30.EFFECT: use of the claimed group of inventions enables to accelerate the ripening of grain crops, to increase yields and grain quality.2 cl, 5 dwgИзобретение относится к устройству и способу возделывания зерновых культур. Способ возделывания зерновых культур с рыхлением почвы на глубину посева на всю ширину захвата предусматривает посев яровой культуры и/или озимой культуры в полосу для семян одной культуры или смеси семян культур через незасеваемую полосу или полосу для семян озимой культуры, которую дополнительно присыпают взрыхленной почвой от сошников, при этом ширина междурядья lм и ширина полосы lп выбраны таким образом, что они удовлетворяют условию 20 < 2*lм - lп <=30. Устройство для возделывания зерновых культур с рыхлением почвы на глубину посева на всю ш