The present invention relates to a fertilizer distributor, and more specifically, to a fertilizer distributor which comprises: a hopper (1) accommodating fertilizer and discharging the fertilizer to a lower portion thereof； an opening/closing device (2) disposed on a lower end portion of the hopper to control the amount of fertilizer discharged to the lower portion of the hopper； a rotating plate (3) rotated by an external power source to strike the fertilizer discharged to the lower portion and thus, discharge the fertilizer to the outside； and a discharge amount control device (4) configured to control the amount of fertilizer distributed by the rotating plate. The discharge amount control device (4) includes a housing (10) comprising: an upper plate (11) and a lower plate (12) formed in a disk shape and disposed on an upper portion and a lower portion of the rotating plate, respectively； a square-shaped side plate (13) arranged to be bent along an edge between the upper plate and the lower plate, wherein opposite ends of the side plate (13) are separately fixed to have an opening (14) communicated with the outside； guide rails (15) separated by a predetermined distance from each other on an outer side of the side plate and protruding to face each other between the upper plate and the lower plate； and a discharge amount control plate (16) attached to the outer surface of the side plate to be guided by the guide rail, thereby being slid in a horizontal direction to open or close the opening. Accordingly, an operator is able to control the amount of fertilizer discharged through the opening by controlling a location of the discharge amount control plate (16) and fixing the same.본 발명은 비료살포장치에 관한 것으로, 더욱 상세하게는 비료를 내부에 수용하여 하부로 배출하는 호퍼(1)와, 상기 호퍼의 하단부에 배치되어 호퍼의 하부로 배출되는 비료의 양을 조절하는 개폐장치(2)와, 외부 동력원에 의해 회전되어 하부로 배출된 비료를 타격하여 외부로 배출시키는 회전판(3)과, 상기 회전판에 의해 살포되는 비료의 양을 조절하는 토출량 조절장치(4)를 포함하는 비료살포기에 있어서, 상기 토출량 조절장치(4)는 원판형상으로 형성되어 상기 회전판의 상부와 하부에 배치되는 상판(11)과 하판(12) 및 장방형으
