Author/Authors :
RAILIĆ, Borislav University of Banja Luka - Faculty of Agriculture, Bosnia and Herzegovina , MALIČEVIĆ, Zoran University of Banja Luka - Faculty of Agriculture, Bosnia and Herzegovina , MITROVIĆ, Dragoljub University of Montenegro - Biotechnical Faculty, Montenegro , TURAN, Jan University of Novi Sad - Faculty of Agriculture, Serbia
Abstract :
In this research are showed results of the exploatational research of the new, modern, tow-type sprayer under field conditions in the treatment of young apple orchards. The assignment test was to determine the actual loss of the liquid due to the inadequate adjustment and to provide guidelines how to reduce the loss of the liquid in the same treatment conditions. The tests aim to detremine the optimal work mode that allows you to reduce both spray drift, in air and on soil, and with that to minimize the loss of protective material outside the treatment zone. The aim of the research is to increase efficiency through increased distribution efficiency and precision of the device. Before the calibration process was noted the norm of the treatment of 520 l/ha while the average coverage of the crown was 35,29%. With that norm were noted losses of the working fluid from 17,21% in the form of spray drift in air and 34,98% in the form of spray drift on soil. After calibration, gauging and adjustment of the sprayer it was achieved an average coverage of the crown of 38,05% with norm of the treatment of 290 l/ha. In less norm loss in the form of spray drift on soil come to only 8,56% and 14,71% of spray drift in air, which means that the coverage of the plate, which measures the losses, is considerably reduced. Test results indicate losses that occur due to the spray drift in air and on soil, which are highly expressed in young seedlings in which the crown is underdeveloped. It is important to emphasize that in this tests in a young plantation standard treatment from 520 l/ha was reduced to 290 l/ha while retaining the quality and even with a slight improvement in terms of coverage of the crown and efficiency of protection. Test results show that despite the use of modern and expensive sprayer, due to incorrectly settings, comes to significant losses in the form of spray drift. The above mentioned problems can be minimized by proper adjustment of the device calibration.
