Abstract:

The purpose of this research is to determine the number of drops that reach the unit area in the different types of pulverizers used in low-volume pesticide applications and to predict the characteristics of pulverization. The tests used standard (ST), high-effect field (LU), standard narrow wing (STD), conic wing (DC), low-tracking potential (AD), air-absorbed (IDK) and twist-flowed (IDKT) breasts. Spray applications are made using an automatic speed-controlled linear moving simulator at a fixed operating pressure of 300 kPa and an application volume of 80 l/ha. Water-sensitive paper (WSP, 26×76 mm) for drop sampling is used and placed in the lower, middle and upper areas of the metal curtains. According to the research results, ST, LU, STD, DC and AD types of breasts are thin and medium; IDK types of breasts are medium and crude; IDKT types of breasts are crude, very crude and excessively crude. The drop frequency average is 88-202 pieces/cm2 in breast producing thin and medium-made drops; 47-48 pieces/cm2 in breast producing medium and crude drops; 19-34 pieces/cm2 in breast producing crude, very crude and extremely crude drops. It is also necessary to increase the frequency of drops to increase biological effectiveness in spray applications used by the IDKT type breast that produces crude drops. Therefore, in the spray applications where the IDKT type breast is used, the operating pressure should be increased within the recommended pressure range and smaller diameter drops should be produced.

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