Provided is a fertilizer supply device or an agricultural material supply device. A first connecting piece and a second connecting piece are connected between a single driving portion performing reciprocating action in a prescribed scope and an arm of a first one-way clutch, and between the single driving portion and an arm of a second one-way clutch. Through outbound motion of a driving portion, the first one-way clutch is driven by rotation in a prescribed direction; the second connecting piece is driven by rotation in a direction opposite to the stipulated direction. A driving shaft is driven by rotation by the first one-way clutch in the prescribed direction. Through inbound motion through the driving portion, the first one-way clutch is driven by rotation in a direction opposite to a stipulated direction, and the second connecting piece is driven by rotation in the stipulated direction. A driving shaft is driven by rotation by the second one-way clutch in the prescribed direction. According to the invention, reciprocating action of the driving portion can be effectively transferred to the first one-way clutch and the second one-way clutch so as to drive a driving shaft of a sending portion by rotation.
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