FIELD: agriculture; engineering.
SUBSTANCE: invention relates to the field of agricultural engineering, in particular to a tool for work, mainly on physically immature soils. Working unit of the agricultural machine contains a device for adjusting the depth of immersion, a figure stand having a fastening zone and a working zone having at least two inflection points, which include a toe zone, an intermediate zone and a zone for cleaning from large plant residues. Toe area has 5–45° angle of inclination to the bottom line of the furrow formed by this toe. Perpendicular from the inflection point between the toe area and the intermediate zone to the bottom line of the furrow lies in the range of 1–10 cm. Perpendicular from the inflection point between the intermediate zone and the cleaning zone from large plant residues to the bottom furrow line lies in the interval of 1–15 cm. Intermediate zone has a length of at least 2 cm.
EFFECT: it provides enhanced functionality, improved quality and productivity of work, reducing the likelihood of spreading plant residues on the working node.
8 cl, 1 dwg
