Acta Univ. Agric. Silvic. Mendelianae Brun. 2018, 66, 9-16
Published online 2018-02-28

Coverage of the Sprayed Objects in the Aspect of the Coefficient of the Spray Surfaces

Beata Cieniawska1, Deta Łuczycka1, Jan Červinka2, Katarzyna Dereń1

1University of Environmental and Life Sciences in Wroclaw, Institute of Agricultural Engineering, Wroclaw, Poland
2Mendel University in Brno, Faculty of AgriSciences, Zemědělská 1, Brno, Czech Republic

The aim of the study was to compare the degree of coverage of the sprayed objects with the selected nozzles in the aspect of the characteristics of the sprayed object, determined by the coefficient of the position of the sprayed surfaces. Studies were conducted in two stages, in laboratory conditions, in which the first step was to determine the characteristics of the sprayed objects, and in the second there were conducted the studies of the degree of coverage. Based on the analysis of the obtained results from the first stage it was stated that the studied plants were characterised by great differentiation of morphological features having a significant influence on the parameters of their spray characteristics. Important was the fact that the use of the coefficient of the spray surfaces Wpo, determining the mutual relation of particular sprayed surfaces facilitates the selection of the most appropriate nozzles and treatment parameters in relation with the morphological features of the plant. In the second stage, concerning the studies of the degree of the coverage it was stated that the selected nozzles differed strongly in the degree of coverage of vertical and horizontal objects. Differentiated coverage for particular nozzles had a strong relationship with the coefficient of spray surfaces, except that the dual‑spray nozzles covered the vertical surfaces better compared to the single‑spray nozzles, which covered the horizontal surfaces better.


15 live references