| 摘要 |
PURPOSE: Provided is a fertilizer sprayer which penetrates vinyl coated on ridge to scatter a certain amount of fertilizer to crops inside vinyl directly so that it contributes to reduce waste of the fertilizer. CONSTITUTION: The fertilizer sprayer comprises the parts of: a fertilizer tub(10) which stores and releases the fertilizer; a fertilizer releaser(20) which includes a fertilizer entrance to receive the fertilizer from the fertilizer tub and a fertilizer discharge hole(25) to be formed at the lower edge of the fertilizer entrance; a switch bar for the discharge hole(30) which is inserted into the fertilizer releaser elastically to make a low edge exposed to the external side of the fertilizer discharge hole with projecting a switch stopper(32) at the lower part to switch the fertilizer discharge hole; and a switch spool for entrance(40) which is fixed at the external circumference of the switch bar for the discharge hole and moved along inner wall of the fertilizer releaser to switch the fertilizer entrance.
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