Modern mechanism, exhibiting the latest progress in machines, motors, and the transmission of power, being a supplementary volume to Appletons' cyclopaedia of applied mechanics (1892)
Benjamin, Park, 1849-1922 · New York, D. Appleton · leaf 181
Fio. 13.—Beet cultivator. duction. It requires thorough tilth and level cultivation—a porous soil, allowing circulationof air and moisture. To insure a mellow seed-bed the plow is run six or eight inches deep, … ... I.-,- IKIIfilHIMall,, •Il r..-l ,„i mil Fio. 11.—Moliiic beet cultivator CYCLES. 167 followed immediately by the subsoil plow to stir the underlying soil to the depth of upwardof one foot below the surface in the autumn; and thorough spring harrowing, followed byrolling, and the drills are…
Mechanical engineering
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