THE SIGNIFICANCE OF TRANSVERSAL DISTRIBUTION DURING THE APPLICATION OF PLANT PROTECTION BY BOOM SPRAYER

The capacity of nozzles changes during the exploitation, i.e. it produces deviation from normal values. The consumption has an effect on the increase of the capacity of the nozzle, or the fraying and abrasion of the cartridge itself, which has a consequence of increased flow of the substance. On the other hand, decrease of the capacity occurs as a consequence of impurities which come with water which is used as a carrier of substances. The aim of the study is to point to the significance of regular control of the nozzle capacity, since it affect on the quality of the application, all of which affect the deviation from the mean value of the transverse distribution. Measured deviations of the nozzles according to the positions had significant deviations (5- decrease 83,33%, or 13- increase of the capacity for 61,11%), and the consumption of the substance according to the surface (ha) fit perfectly. During designing and monitoring of the treatment standard, most of the producers monitor consumption (l/ha), and this paper points to frequent occurrences in practice (deviations) that can significantly affect the quality of the application, as shown by water-sensitive papers. The coverage of water-sensitive papers ranged from 5.60 to 57.40%.