| 摘要 |
<p>A field drag particularly adapted for use in conjunction with a post-plowing cultivating implement includes a mounting bar section pivotally secured to the frame of the implement and extending in a rearward direction behind the implement. A plurality of spaced, soil-working teeth are secured to the bar section and extend downwardly therefrom and generally toward one end of the bar section so as to form an acute included angle with respect to the bar section. An adjustable spring tension arrangement pulls the bar section resiliently toward the implement thereby urging the teeth into the soil as the drag is pulled across a seedbed to break up and pulverize clods and smaller chunks of earth into loose soil. In a modified form, the teeth may be fastened to the bar section to slant selectively toward one end or the other of the bar section.</p> |
