The purpose of the work is to improve the quality of embedding crop and plant residues into the soil. The results of experimental studies of the sealing of millet crop residues and their distribution over the depth of the cultivated soil layer by the serial ploughshare plow PNL-8-40 without pre-ploughs and the developed plow PBS-8M are presented. The PBS-8M plow is structurally fundamentally different from the widely used well-known plow PNL-8-40. The body of the PBS plow has a grip width of 60 cm. The right plowshare with a width of 40 cm and the left plowshare with a width of 20 cm are installed on the housing rack, there is no field board. A solid blade is adjacent to the right ploughshare for the entire width. When working with such a PBS plow body, part of the soil layer crumbles with the left plowshare, and the other part crumbles with the right plowshare, shifts, turns around and fits on the crumbled left part. The plowing of the field after harvesting millet by combines with shredders-straw spreaders, was carried out by plows in an aggregate with tractors K-701 and K-744R3. In the first experiment, it was found that during the operation of the PNL-8-40 plow, the straw is laid in depth in rows of various shapes and sizes. On the daytime surface of the field, strips of uncultivated straw were observed in the rows of the closure of the soil layers, which were at a distance of 30-60 cm from each other. In the second experiment, when working with PBS-8M, stubble and millet plant residues were embedded in the arable layer also unevenly, both in depth and in the width of the plow grip. However, the stubble is more evenly mixed with the soil and was at a depth of 8-15 cm. The thickness of the straw layer at the depth of the sealing was from 5 to 12 cm. The technological parameters of the PBS-8M plow contribute to the intensification of the processes of mineralization and humification of crop residues in the soil.