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Once Over Chisel Plow
A "once over" chisel plow designed by Washington state farmer J. L. Dewitt, of Waitsburg, and built by Weber Machine Shop, of Walla Walla, is especially suited to trashy fallow or minimum tillage cropping systems.
The plow has four rows of high-clearance chisel teeth. There are six teeth on each row spaced 32 inc
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Once Over Chisel Plow TILLAGE EUIPMENT Chisel Plows (9) 3-2-21 A "once over" chisel plow designed by Washington state farmer J. L. Dewitt, of Waitsburg, and built by Weber Machine Shop, of Walla Walla, is especially suited to trashy fallow or minimum tillage cropping systems.
The plow has four rows of high-clearance chisel teeth. There are six teeth on each row spaced 32 inches apart, making an over-all spacing of 8 inches. The first two rows can apply NH3 on a 16-in. spacing, and the last two rows apply dry material (fertilizer, seed, etc.) with the same spacing. The dry material can be placed underground or dribbled on top of the ground. A rod weeder attached behind smoothes and seals the ground as well as cutting off weeds. Heavy coulters in front cut trash.
The attachments (rod weeder, NH3, and dry material) are driven by the rear carrier wheels. The primary drive chain runs between the dual carrier wheels to a shaft underneath the main frame. This drive is completely enclosed and runs in grease. The drive shaft is also enclosed to the sides of the machine where secondary drives begin.
The back row of teeth can be set to penetrate 4 to 6 inches deeper than the other teeth. This breaks up the tillage-pan
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