Power to tut a the mechanical rotating distributor of a broadcast seeder can be supplied either by power >. :.e-off from the tractor or by a ground-drive wheel. (The distributing mechanism is basically she same as that of the hand-cranked broadcast seeder, which we discussed earlier in this chapter.) With no power source, animal-drawn distributors rely on a gear drive from the ground wheel to the rotating wheel to rotate the distributor. The newest units are battery-operated so that the distributor can be attached to any moving vehicle, whether it's a tractor, jeep, or automobile.
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