EXPERIMENTAL RESEARCH ON THE DETERMINATION OF FUNCTIONAL AND QUALITATIVE INDICES OF HYDRAULIC NOZZLES THAT EQUIP SPRAYING MACHINES

Abstract

Obtaining an appropriate effectiveness with minimal expenses of chemical treatments is possible only if they are executed with superior qualitative indices and very precisely in terms of ensuring the stability of the solution norm administered per treated surface unit.
Achieving a biological effectiveness of a spraying treatment is conditioned by ensuring the minimum optimal number of drops per treated surface unit.
The reduction of liquid norms per hectare is possible, however, only under the conditions of maintaining an equal or greater agro-availability of the spraying solution, by using studied spraying systems where the size of the drops can be controlled and directed, as well as their distribution on the plants.
The main objective of the experimental determinations was the determination of some functional and qualitative indices that characterize different types of hydraulic nozzles used in practice.The obtained results will allow a comparative analysis of the effectiveness of the treatments carried out with these nozzles, in terms of the biological effect.