| 摘要 |
An elongated frame bar is removably attached to the conventional implement drag bar or the rear cultivator bar of a tractor so as to successively align with the terminations of a plurality of parallel spaced-apart row irrigation furrows. A carriage, provided with a ditch forming plow, is mounted so as to be longitudinally moved back and forth along said frame bar by a roller chain propelled by a reversible motor so that the ditch forming plow will enter and extend the length of each row irrigation furrow as the frame bar successively aligns therewith.
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