The Influence of Nozzle Type on the Coverage Degree when Performing Phytosanitary Treatments

Abstract

Effectiveness of phytosanitary treatments is greatly influenced by the way how droplets are distributed on the plant, the coverage of all plant parts, regardless of their position (horizontal, vertical, inclined). Coverage has greater significance mostly using contact substances and can be modified by way of nozzle spraying, their droplet size and direction to the target surface.In order to improve the coverage degree, even using low quantities of active substances per hectare, the nozzles manufacturers developed a special nozzle with a double jet. This nozzle can have a symmetric or asymmetric jet. This way the plants are better covered and the coverage degree is improved.The multiple nozzles type trials attended showed that the coverage degree is not mostly influenced horizontally by the nozzle type. In vertical plane nozzle type is a decisive factor for increasing the coverage degree.e coverage degree is not mostly influenced horizontally by the nozzle type. In vertical plane nozzle type is a decisive factor for increasing the coverage degree.