FIELD: agriculture. SUBSTANCE: to reduce number of runs and power consumption soil is shifted to form two beds and three wind rows and is formed along longitudinal axis by mixing stones and soil from edges to the middle, butt windrows at edges are complemented at return run. Place of location of concealed stone or other obstacle is detected by decrease in speed of cross displacement of soil to zero. Working members in form of rakes move relative to tractor and together with tractor, leaving two strips of tilled and cleaned soil. EFFECT: enlarged operating capabilities. 7 dwg
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