engleski

Imapact of technical spraying factors on leaf area coverage in a vineyard with Hardi Arrow radial fan mistblower

Research is conducted in a vineyard with Hardi Arrow radial fan mist blower. The influence of major technical spraying factors (type of nozzle, working speed and spray volume) were observed on coverage of the treated area. The working speed of mist blower was set at 6 and 8 kmh-1, and spray volume on 250, 300 and 350 lha- 1. In research, Lechler blue (TR 8003C), yellow (TR 8002C) and green (TR 80015C) nozzles are used. The research was set as three - factorial field experiment with 18 treatments in 4 repetitions. Sixty water sensitive papers (WSP) were used for the treatment, which was processed with digital image analysis (DIA) and ImageJ software. The major technical spraying factors have a high significant statistical impact (**) on the main property of the research. By decreasing the ISO number of nozzles and by increasing the working speed and spray volume, we found the increase of leaf area coverage.

radial mistblower ; working speed ; nozzle ; spraying norm ; area coverage ; water sensitive paper

nije evidentirano