| 摘要 |
FIELD: agricultural engineering, in particular, pre-emergence treatment of sugar beet crops. SUBSTANCE: rotary tool has beam 1 and toothed disks 2. Beam 1 has bracket 3 and T-shaped bar 4 mounted on beam 1 for rotation and connected by flexible straps 6 with set of annular harrows 8 formed as triangles. Harrows 8 are interconnected by movable links 7. EFFECT: increased efficiency, simplified construction and enhanced reliability in operation. 2 cl, 2 dwg øøø1
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