Evaluation of droplet size spectra for agricultural pesticide applications using water sensitive paper and image analysis techniques

Abstract

This study aims to evaluate the average droplet size and range of droplet size, which affects agricultural pesticide quality using image analysis techniques. In the study droplet diameters was measured by using 26 x 76 mm water sensitive paper produced by Ciba-Geigy with a little sprayer. A Nikon D300s camera body and a 105-mm macro lens were used for capturing images. Image J software was used for image evaluations, and Microsoft Excel software was used for evaluation of numerical data. At the end of the study, number median diameter (NMD) was calculated as 75 µm, diameter surface (ds) was calculated as 31 µm, volume median diameter (VMD) was calculated as 300 µm, Sauter diameter (dv/s) was calculated as 37 µm, and VMD/NMD was found 4.00 from evaluations. © by PSP