PURPOSE: To surely and rapidly recognize the occurrence of a fertilizer clogging. ;CONSTITUTION: This fertilizer application working machine is capable of sensing the pump operation with sensors PS1, PS2 and PS3 of fertilizer application pumps, outputting an operation signal to a driving circuit 27 with an alarm controlling means 22 when at least one of flow sensors NS1, NS2 and NS3 of fertilizer application nozzles senses the stop of the fertilizer flow and operating an alarm buzzer BZ so as to perform the operation of sound production, further outputting a prescribed signal to driving circuits 24, 25 and 26, performing the operation to light an alarm lamp corresponding to the fertilizer application nozzle in which clogging occurs in the alarm lamps L1, L2 and L3 and carrying out the stop operations so as not to operate the alarm lamps L1, L2 and L3 and the alarm buzzer BZ with an alarm controlling means 22 without regard to the information from the flow sensors NS1, NS2 and NS3 when the sensors PS1, PS2 and PS3 of the fertilization application pumps sense the stop of the pumps.;COPYRIGHT: (C)1996,JPO
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