AN AUTOMATIC OPERATING SPRAYING INSTRUMENT FOR DOING LABORATORY EXPERIMENTS WITH HERBICIDES

Abstract : An electrically controlled, automatic sprayer for laboratory-tests is described. This sprayer is equipped with selected single spray nozzles (flat- spray nozzles) or combinations of spray nozzles (hollow-cone spray nozzles). These are led across the object to be treated in a constant speed. The output of spray solution can be varied by request from 200 to 800 1/ha. The constant spray distribution is exactly layed down for each spray nozzle or combination of spray nozzles. Only very few of the recorded results show a difference of more than plus or minus 10% from the mean-value. Unavoidable deficiencies in uniform distribution of the spray solution can be exactly localized.